International 4300 ac compressor not engaging. This article covers both causes and fixes for this issue.

International 4300 ac compressor not engaging From feeding the planet to powering industry forward, our innovations and dedication have driven progress on a massive scale. and even on the freeway it isnt cold by any means. Regularly maintain by checking refrigerant levels and electrical connections to ensure proper compressor I will show you how to fix your ac or Heat in an international truck. By understanding how the AC system works and being able to identify potential issues through the diagram, you can ensure that your truck's AC is always in top-notch condition. The ac compressor is kicking in and out about every 10 seconds, i hooked uo gauges and watched the fluctuation, low side would drop to 30 and the high side being 150 then it would go to 50 on the low side and 120 on high side, this would repeat every 10 seconds as the compressor kicks on and Discover more answers I have a international 4400 no power to a/c compressor 2005 international 4300 ac compressor not kicking in new sensors, relay, fuse, and control switch still no power to Feb 15, 2016 · 2012 International Prostar with Maxxforce 13. Oct 16, 2015 · Without Diamond Logic you can not monitor thermistor temp. Sometimes it Jul 11, 2024 · I have a 2005 4400 international with a dt466. so this is the way that you can quickly make sure that your thermistors are working. C problem. Usually the compressors leak on these years. I am looking for the A/C compressor clutch control schematic. Hi, my truck is intermittently starting. i replaced the climate control module. Apr 19, 2018 · New compressor (twice), dryer (twice), pressure switch (twice), fan switch, control panel (dash), thermostats and blend door motor. the a/c will blow "cool" (not cold) on the freeway. The diagnostic tool indicated that the control module on the dashboard was faulty, which I fixed. (after you remove battery cables for 5 minutes to reset) It works! Oct 16, 2015 · The only way to diag your ac problems. If you have heat or ac in bunk but up not up front or if you have it up front but not in the bunk ! Easy fix on the road or at Customer: I have an international AC that keeps blowing cold air and then stops. The AC is inconsistent. 134 freon is cheap get you a can with the gauge and pump it back up and see how long it last. My truck had a security system on it from the previous owner. A. Ohm out ac clutch, replace thermisters. So the technician proceeds to use an ohm meter and test fuses in the fuse box. When the AC compressor doesn’t engage despite new sensors, relay, fuse, and control switch, check the compressor clutch coil for continuity. Etc. Mechanic's Assistant chat Customer: i have a 2003 international 4300 with AC proplems, first of all i put new AC system on this truck in April it has been working fine last week the AC started blowing hot got gauges all pressures are right but compressor will not come on, if i jump compressor it will come on. Went to heater control panel, have 12 V at ac switch, (with blower on) and so switch is sending it down the line but where it goes to, I don't Aug 13, 2012 · hey guys one of our flatbeds is an 02 international 4300 with a dt466 and a 6 speed. Inspect the wiring harness for damaged connectors or corrosion that can interrupt power flow. These diagrams will help you identify the wiring connections and components involved in the AC system, allowing you to diagnose and fix any issues. There is no B+ power to the clutch. the compressor doesn't get juice. If you lift the hood, you will notice part of the module protruding with three plugs: blue, brown, and gray. This could be caused by a few issues, e. Here are 8 common causes and how to manually engage it Now accepting support and donation to my channel. I can command the compressor on with DLB, and the pressures stay within range while the AC blows cold, but the body controller will not engage the compressor. This summer it Aug 14, 2020 · Watch at proclaimliberty2000 how to fix your vehicle ac clutch relay and save money. I'm getting codes 612-14 27-1, 612-14 27-2, and 611-14. This article covers both causes and fixes for this issue. The A/C won't turn on. The Pump I havent checked on, so right now this is secundary, but maybe the two problems are connectet somehow. Also, you may need to wait till cold air starts blowing. By checking this box and clicking the "Send me job offers" button below, I represent that I: By checking this box and clicking the "Send me job offers" button below. 6L The AC compressor is not turning on. So you are into servicing the AC charge, looking for big leaks like a blown hose, vac the system, and charge it up. This lovely Jersey weather kills me and it would be nice to cool down for a minute or two at times. Mechanic's Assistant: Are you repairing the truck yourself? What steps have you taken so far it's actually two bypass that i did here, presure sensor & blower motor How to rebuild ac compressor 👉 • How To Repair Car Ac Compressor This should fixed your car ac compressor not getting I am working on a 2011 international pro star a/c system not working I have checked charge &recharged compressor clutch If the AC compressor on a 2018 Isuzu NQR isn’t engaging, first check the refrigerant level; low freon prevents clutch activation. The contact owns a 2005 International 4300 dump truck. com -- This is an externsion of the video set titled -- 'Prostar A/C PRoblems -- How to fix yourself 'Rawze's Amazon Recommendations: https://www. still nothing International 4300 fuse box Mechanic's Assistant: That sounds frustrating. It seems that the A/C compressor clutch may be worn or there could be an internal issue with the compressor. Jan 17, 2022 · Sometimes, you may turn on your car’s air conditioning system only to find that it’s not coming on. Verify the pressure switches and low-pressure cut-off sensors are functioning correctly. Checked compressor and it’s good. amazo Customer: 2002 International 4300 7. 2004 4300 series Dt466 AC compressor will not kick on, no fuses on passenger side or outside on drivers side under hood. Now when you have the ac on normal and turn the fan control to off them back on the ac blows out the How to diagnose why the AC compressor does not engage with the AC on ON and MAX. 2012 international prostar with maxxforce 13 engine. Mar 14, 2025 · In this step-by-step guide, we’ll walk you through the process of resetting the A/C system of your International truck. I'm Daniel, and together we'll find a solution to get your A/C system working again. It is more likely to be ok. any other ideas? 2007 International 4300 A/C Compressor Clutch Not Engaging Issue 4300 model often faces A/C clutch engagement failure and electrical connector power loss issues. A gauge sweep will be performed on the gauges. 4300 DT466 often faces A/C compressor power loss and persistent diagnostic trouble codes not clearing. 2004 DT466 4300 Series AC Compressor Won't Engage 4300 Series AC compressors often face relay failures and wiring harness corrosion causing intermittent operation. Mechanic's Assistant: What's the make, model, and year of your truck? What type of engine does it have? Customer: It's a 2005 International 4300 with a DT466E engine. What Causes AC Clutch Not to Engage? Before we get into details on the reasons for the AC clutch not engaging, it is crucial to have some information about the AC clutch. Inspect the compressor clutch coil for continuity and the AC relay/fuse for faults. What am I overlooking? Discover more answers I have a 2000 ford ranger and my compressor kicks on jumping it from the battery and the fuse box under the hood. AC is not working. 99. com/Fixyour4300dt466?utm_medium=unknown&utm_source=join_link&utm_campaign=creatorshare_creator&utm_content=copyLinkA/C CONTROLS QUICK DIAGNOSTIC Mar 14, 2025 · ️ Compressor failure – If the compressor isn’t engaging, it may need replacement. Crappy dealer took 8 days to get the AC working. Saw lots of dye come out but def has freon also Compressor Kit - Cummins Engine Compressor Kit - International Engine Compressor/Conversion Kits Compressors - 10 Groove Compressors - 6 Groove Compressors - 8 Groove Condensers Engine Fans/Clutches Evaporators Expansion Valves Heater Actuators Heaters, Heater Cores O-Rings, Gaskets Orifice Tubes Radiators Rec Driers/Accumulators Sensors 2005 International 4300 A/C Clutch Power Issue Diagnosis 4300 A/C systems often face clutch engagement failure and intermittent high-pressure switch signal problems. accepting: personal check, business check, money orders, gift cards, gifts, tools, shop articles, etc,. It does engage if I jump it off a 12V Jun 26, 2009 · Hello! I'm a mechanic working for a small city in Tennessee responsible for the City's police fleet, as well as its Public Works and other City vehicles). switches ok, tested compressor clutch ok, cked fuse ok, cked relay ok. I noticon the back of the compressor and started last winter it seemed like the defrost postion didnt seem to work correctly. However, power is sent to the magnetic coil of the A/C compressor clutch when the vehicle’s A/C system is required to start up. I can turn on the ac compressor manually with a computer. When the AC light fails and pressures read high side 90 psi and low side 70 psi, check the AC pressure switch and refrigerant levels. The high side should go up close to 300psi before it cuts the compressor off. Verify electrical connections at the 2007 International 4300 DT466 A/C Not Blowing Cold Air 4300 DT466 often faces blend door actuator failure and refrigerant system pressure imbalances causing poor cooling. Hello, I specialize in Medium and Heavy Trucks and am here to help you solve the problem with your International 4300's A/C compressor. My concern is that I'm working on the same truck today and I saw the ac compressor not engaging with clutch. All of the I am working on a 2015 International Durastar 4300. Replaced the high pressure switch because I thought it was preventing the fan from coming on. Ensure the system is properly evacuated before refrigerant recharge; trapped air reduces pressure accuracy. The power to the AC compressor originates from the ESC located on the driver's side firewall. I had the a c compressor check. Inspect fuses and relays related to the AC system for continuity. For persistent issues, it’s best to consult a certified technician to diagnose and repair the problem. It has a new compressor, receiver/dryer, high-pressure line, condenser, blower motor, blower motor resistor, and expansion valve. I am getting no power to the ac compressor. Jul 25, 2025 · One of the more common air conditioning problems is an A/C compressor clutch that won't engage. i had it charged at a local shop Nov 3, 2012 · Hello my international 4300 2002 model, the ac is about as cool as its ever been, has never been cold. There are no freon leaks. If you had a leak and lost your refrigerant charge, the compressor will not engage as it sense insufficient charge. Inspect the AC clutch relay and fuses for electrical faults. The system controller is a 4008 Blue, and while the lights and wipers are functioning properly, there is still no power Customer: I have an international 4300 with an AC issue. International 4300 AC Compressor Won't Engage: Troubleshooting Tips 4300 models often face AC compressor clutch failures and pressure switch malfunctions causing cooling issues. For a non-engaging A/C compressor clutch, verify the pressure sensors’ signals since this model uses sensors instead of switches. Therefore, the module will not be able to activate or deactivate the AC so that the . Order International 4300 A/C Compressor online today. I have a 2007 international 4300 dt466e that has AC issues. https://patreon. I've noticed that the AC compressor clutch is engaging and disengaging randomly, but it doesn't seem to be cycling normally. So I used a separate positive and negative line from the battery to engage the clutch, while monitoring the other end of the plug with a test light. Jul 17, 2015 · First thing I'd check is the static pressure in the A/C system. Since thermistors and pressure transducers were replaced, focus on ESC wiring harness and ground connections. The mechanic can help with your SPN 613 code and AC compressor clutch issue on your 2004 International 4300. Jun 4, 2024 · Is your car AC blowing warm air? It could be a clutch issue! Learn how to diagnose a non-engaging A/C compressor clutch & troubleshoot potential causes. And the compressor work and blow cold. A faulty pressure switch or wiring issues can also inhibit engagement. With the key turned off and the A/C button off, place your hand on the A/C clutch and wiggle it. Jun 26, 2009 · The driver reported that the air conditioning (AC) started blowing through the defrost vent only, regardless of what mode (MAX, NORM, bi-level, floor defrost) was selected. Aug 7, 2012 · Just went through the same thing on my 2011 ProStar. The truck contains the correct amount of freon, which is 2. That dealer will NEVER see my truck again! Find 2004 International 4300 AC wiring diagrams to troubleshoot and repair your vehicle's AC system. Apr 5, 2020 · 2014 international ProStar with the n13 Navistar engine. 2006 int 4300 ac stopped working compressor is not getting power but will run if you jump it outI would change the two by the firewall! The other one you are talking about has 3 wires by the condenser and measures pressure in the system. It shows that the request is sent, but the separate signal box for the AC trouble with my International 4300 Jeramy Reber Pure Dirt 13. I have a 2007 Ford E450 Superduty Box truck with a V10 and 70,000 miles. I understand you're having trouble with your A/C compressor not engaging on your 07 International 4300. It has a brand new compressor, drier, low pressure switch, and high pressure switch, but it still won't work. It may turn on in the morning and function throughout the day or only operate for a few hours. Originally the dash "check AC" light was on and it only blew Jun 16, 2014 · The 'Check A/C' light is on in my 2005 4300 International. It was a sensor issue but they charged to replace the whole AC system,compressor and all. 2010 international 4300 dura star. An AC Compressor Running But Won’t Take Freon (the refrigerant) properly, resulting in hot air coming out of the vents. You’ll learn the tools and materials you’ll need, as well as the exact steps to follow to get your Air conditioning system working like new again. I have no ac clutch and cannot find the clutch relay or thermal limiter(if there is one). it has a brand new orifice tube and accumulator with a good compressor. Part Info. For no power at the A/C compressor, verify voltage at connector 4008; absence suggests ESC (Electronic Shutdown Controller) faults. Funny thing is i looked under the hood and it is a used compressor that does not even bolt up the same. * Nov 9, 2022 · Understanding how the air conditioner on your International 4300 works will help you pinpoint the problem quickly and accurately. I have changed the high preassure switch and Jan 7, 2023 · If your AC clutch is not engaging, it's important to find out why and take the necessary steps to fix it. No 12 volts at comp plug. The A/C is not cooling because the A/C compressor clutch is not engaging. Jun 3, 2007 · 95' 378. If not u start changing parts. If the AC compressor causes breaker trips when powered, suspect a shorted compressor clutch coil or internal winding. but at idle or in town its worthless. Use a multimeter to trace voltage from the control switch to the Customer: A/c stop working but if you run a power wire to the a/c compressor everything works fine. low freon charge, min pressure switch bad, ACC bad, bad compressor 2007 International 4300 DT466 A/C Compressor Clutch Not Engaging 4300 models often face A/C compressor clutch failure and pressure sensor malfunctions causing system inoperability. Check out free battery charging and engine diagnostic testing while you are in store. I've tested all the fuses in the cabin and the outside fuse/relay box. Hope this helps If this info is worth more than u paid for it hit thanks and rep Thanks given by:DieselMan2006 , 153771739 , ibmman Reply quality truckLocation Offline Reputation: 121 Thanks Given: 2543 Thanks Received: 1461 (504 This comprehensive guide delves into the frustrating issue of an AC compressor clutch that refuses to engage. Discover more answers I have a 1999 International 8100 daycab in our shop and its here because the ac compressor will not engage, We Checked I have a 2006 international 4300 and the ac compressor will 2002 International 4300 7. Aug 7, 2012 · Yesterday the front blower on my 2012 Prostar with only 85k doesn't come on at all heat or AC and the compressor doesn't engage. I need assistance with diagnosing the electrical issue. SERVICE MANUAL SECTION 3200, 4200, 4300, 4400, 7300, 7400, 7500, 7600, 8500, 8600 SERIES Built October 1, 2002 and After — ELECTRICAL CIRCUIT DIAGRAMS Apr 24, 2012 · When I started to troubleshoot the AC system, the AC compressor clutch would not engage. Full charge of freon and it still cycles off after approx. AC A/C Compressor Fits International Navistar 4815 4546 4481 4381 4300 SD7H15 (Fits: International Harvester 4300) $145. keyworks freightliner kenworth peterbilt international volvo mack western star cascadia coronado t660 t680 t700 579 389 379 589 vnl vn cummins Dec 12, 2010 · 2015 International AC problems Discussion in ' International Forum ' started by joseph1853, Aug 2, 2018. An AC clutch is what makes the AC compressor turn. Discover more answers I have a 2006 international 4300 and the ac compressor will 2005 international 4300 ac compressor not kicking in new sensors, relay, fuse, and control switch still no power to 2002 International 4300 7. Use a multimeter to trace voltage from the control switch to the May 31, 2012 · Hello, i have aoticed last winter Intl 4300, 2002 model, Dt466. so now im lost This video contains advance technician information. No freon = no oil going to the compressor. Feb 6, 2025 · What Should I Do If Ac Compressor Clutch is Not Engaging? If your AC compressor clutch is not engaging, there are a few things you can do to get it working again. Before I start I need to explain that I have NO diesel training, the City has NO heavy truck scan tools, and we Sep 26, 2015 · 02' 9200i, all new ac system, worked great and now have lost electric power all way from the compressor to the relay behind glove box. Complete ac work, new ac compressor, new accumulator, sensors, hoses ect, I did recharged system to specs. Is there anything else they should know before I connect you? Fix your International Prostar Air Conditioner Yourself and Stop Wasting money at the repair shops I am certianly no expert on AC systems, but I manage t Customer: I am experiencing air conditioning issues with my truck. 2012 International MaxxForce AC Compressor Won't Engage MaxxForce engines often face AC compressor clutch failures and electrical short circuits causing breaker trips. If everything appears in order, then it may be due to an electrical problem with either the thermostat or air For AC issues on the 2005 International 4400 with DT466, start by checking the compressor clutch relay and wiring near the drier switches. Disclaimer: Under no circumstances will proclaimliberty2000 be responsible or liable in any way for any content The story of International is the story of national and global change. But once it sets the code it shuts it down. Both the compressor and high-pressure switch have already been replaced. No power at compressor. Download and use these diagrams to optimize your AC system's performance and ensure a comfortable driving experience. The thermistors are very likely to be your problem as I see this all the time at our dealership! Complete ac International expert I'm working on a 2006 international 4300 dt 466, I did replaced ac system on July 2011. For the 6 years I have owned it, the AC has always been ice cold. Manuals and User Guides for International 4300. 25 lbs. there is no power to the a/c clutch, checked refrigerant charge ok, cked press. May 31, 2011 · Running the system with the switch bypassed for anything other than testing will lock up the compressor from lack of oil. 2005 International 4400 AC Compressor Power Issue Troubleshooting 4400 often faces AC clutch engagement failure and electrical wiring faults causing compressor non-activation. What I learned here was that the pressure switch could prevent it from engaging. I have 2 faults that pull up on the dash one is a 611_14A the other a 613_14A. 49. For AC inoperative issues on the 2011 International 4300 with MaxxForce 7, start by checking the AC compressor clutch engagement. The fault you have is for an open circuit in the "thermistor". The truck came in with a/c problems where the the ac would cut out Jan 11, 2012 · I recharged the a/c today to factory specs and when i tried resetting the light it wouldnt go off which means my compressor wont come on. DIY fixes & pro tips included! AC not working Semi/ Truck ac not cooling/ How to fix ac in semi truck/ Ac not cooling semi truck Jun 1, 2023 · Does the air inside your car get hot every time you switch on the Air Conditioner? If you answered yes, it’s because your AC compressor is failing and is not working up to the extent that it used to. Just tried it and it worked!!! Transman. g. Customer: I have a 2005 International 4300, and the A/C clutch won't engage. I have checked the hp & lp switches, there is another switch on the high side line near the condenser that has 3 Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. We have 1 International 4300 manual available for free PDF download: Service Manual May 20, 2017 · 1999 - 2016 Super Duty - AC Compressor constantly cycling [SOLVED] - Apologies if this has been previously asked and answered but I have not found my exact symptoms. Free Same Day Store Pickup. Thanks for your response. Jun 28, 2010 · The A/C compressor is ECM controlled like most modern vehicles. Often, it means the ac compressor clutch isn’t engaging. Learn How to Design schematics and diagram, 2006 Dodge Charger Alternator Wiring Diagram. Customer: I have an International 4300 with a DT466 engine, and I'm experiencing an issue where there is no power to the AC clutch. 6L AC compressor wont turn on No freon leaks Need help diagnosing electrical please send Read less 1 Likes Rawze. Mar 10, 2009 · So i will do resistance test on thermistors tomorrow but from im reading bad thermisters cause compressor not to kick on . International dealership said it's probably because the pressure isn't right and won't allow it to come on??? They are planning to direct wire shortly and make sure the compressor is still coming on and not burnt up due to them morons surging the system when they were trying to figure out the starter. The rear AC fan works but with the engine on no cold air. To understand the wiring diagram for this vehicle, you must first understand the components that comprise the system. Apr 29, 2023 · In conclusion, the International 4300 AC wiring diagram is an essential tool for any truck owner or mechanic. Replaced the ac compressor and the high pressure switch and the compressor won’t engage. I have a problem with one of our garbage trucks, a 2005 International 4300 with the DT466 (20774 miles, VIN 1HTMMAARS5H161667). all of our fords will blow you out of the truck. Hence, even if your AC compressor is running, it won’t be able to take Customer: i have a 2013 international vin: ***************** ac compressor clutch not engage there is no power going to compressor tried jumping pressure switch still no clutch engage ran ac machine for leak test passed an charged system to spec attempted finding power from hvac head unit but did not find find correct pin to trace can you help diagnose this problem Apr 26, 2023 · There are eight triggers leading to the AC compressor not building pressure, including bad compressor clutch, faulty gasket, failed pump, expansion valve blockage, compressor pulley bearing, ac compressor speed sensor, compressor clutch relay, and compressor with an internal leak. May 27, 2018 · Troubleshooting your car's AC? Learn the most common causes of a compressor clutch not engaging when you turn on the AC. Inspect the pressure switches—high or low-pressure sensors can prevent compressor activation if readings are abnormal. power to the ac compressor comes from the ESC located on the driver side firewall if you lift hood you will see part of the module sticking out with 3 plugs . The AC charge in the system is good, and the low-pressure switch is new. It can be used to troubleshoot problems, identify components, and even help plan the layout of the wiring for a new installation. its A/c compressor will not kick on 2005 international 4300 ac compressor not kicking in new sensors, relay, fuse, and control switch still no power to Customer: 2019 INTERNATIONAL MX. Regularly clean condenser fins and verify refrigerant charge to Apr 24, 2023 · The International 4300 AC Wiring Diagram is an important tool for anyone working on the repair or maintenance of an International 4300 AC system. Saw lots of dye come out but def has freon also You will also learn how to jump AC compressor clutch to prevent you from getting into sudden AC compressor clutch failures. 1 Year For 03 04-06 International 4400LP 4300LP 4200 4300 4400 A/C AC Compressor (Fits: International Harvester 4300) $160. Test the AC compressor clutch engagement; if it doesn’t engage, the clutch coil or relay may be faulty. . May 23, 2025 · If your AC compressor clutch is not engaging, it could be the result of other faulty parts. Let's collaborate to pinpoint the root cause and resolve it. Is there a way to reset that light, or find out if there are any 'codes' as to why it's on? Thanks! It seems you're experiencing an issue with the AC compressor clutch not engaging on your 2004 International 4300 dt466, and you require the fuse diagrams for both the interior and exterior fuse boxes, is that right? I am providing the A/C wiring diagrams along with the fuse box identification and wiring diagrams. About 8 months ago I took my truck to get the air conditioner fixed at a shop. By drawing the clutch’s drive plate forward, where it meshes with the clutch body and compressor pulley, this energization of the clutch coil produces a magnetic field that Customer: I have a 2005 International 4300, and the A/C clutch won't engage. View and Download International 4200 instruction manual online. Compressor Clutch Failure When the AC compressor engages but no pressure change, check to see if the compressor is Part Info. System is charged but compressor clutch will not engage. The company owns a 2003 International 4300. Aug 14, 2020 · Watch at proclaimliberty2000 how to fix your vehicle ac clutch relay and save money. Customer: I'm working on a 2015 truck with air conditioning issues where the AC cuts out or blows from random vents. Nov 15, 2019 · Maybe some is able to help me with that Problem: I have here a 2004 Navistar International 7400 Fire truck where the A/C and the Main Pump for the Fire Engine is not working. I have a 2006 international dt466 4300, ac has stopped working, I replaced thermistors and pugs, dryer, orifice tube. Good thing I did, it wasn't. The computer has detected a fault in the system and will not attempt to run the a/c to prevent possible system damage. What other factors should I investigate that could be causing this problem? View and Download International 4200 instruction manual online. Now i turn ac on compressor kicks on fan also kicks on keeps running but no cold air , line by reciever dryer starts to get slightly cold but thats it. Air conditioner not working. I already took it to 3 different shops and they Jun 19, 2008 · I desperately need a component locater and wiring diagram for a '03 4300 international. If the AC compressor won’t engage despite a new compressor and accumulator, check the AC clutch relay and fuses first. 4 Years Undercharge starves the compressor of oil and overcharge doesn't cool well. Additionally, where can I find the fuse for these controls? 2012 International ProStar A/C Compressor Not Engaging Issue ProStar often faces A/C compressor clutch failure and low-pressure switch malfunctions causing cooling loss. From common culprits to more obscure factors, we explore a range of potential causes May 17, 2011 · I have a 2004 International 4300 dt466. The main components are the condenser, evaporator, compressor, and expansion valve. I can replace the actuator, but I'm Dec 4, 2023 · If your car AC isn’t blowing cold air even though the compressor clutch engages, the compressor may be dead. 6L AC compressor wont turn on No freon leaks Need help diagnosing electrical please send Read less Replacing the Cold Loop ‐serviceable air conditioning components. the truck never overheats or runs warm for that matter anyways. Have you checked the fuses related to the AC system in the International 4300 fuse box? Customer: yes Mechanic's Assistant: When you run a power wire to the AC Jun 12, 2010 · 2005 International 4300 - A/C n/w - School Bus Fleet Magazine Forums Feb 3, 2013 · Wondered if anyone has done any trouble shooting for this problem on a star? Was all prepared to head to a shop and get ac recharged, then thought I better just make sure the compressor is working. For no power to the AC compressor clutch, first check the compressor relay and fuse in the fuse panel. They fixed the air conditioner but couldn’t get the truck to start afterwards. 4K subscribers Subscribe 2004 International 4300 DT466 AC Compressor Clutch Won't Engage 4300 DT466 often faces refrigerant leaks and compressor clutch engagement failures in the AC system. Charged with freon, engage the air compressor with a line from the fuse box. Ensure condenser airflow is unobstructed. High low-side pressure suggests possible compressor issues or a blocked expansion valve. Also, verify the condition of the AC pressure switches and fuses. pushed in shrader valve i dont remember freon being so slimey oil like. However, now the compressor clutch isn't engaging, the vents still blow randomly, and the diagnostic tool shows that the actuator is erratic. Aug 16, 2024 · About this item Compatibility: The AC Heater Control Panel is compatible for 2002-2007 International 4200 4300 4400 7400 7500 7600 7700 8500 8600, compatible with 2002-2012 International Citystar, compatible with 2007-2012 International Prostar, compatible with 2008-2012 International Durastar 4200 4300 4400 May 8, 2014 · More than likely you have lost freon, you can unplug the pressure switch on the dryer and jump the connector to make sure the compressor does engage. To determine if the problem is the AC clutch not engaging, start examining if your compressor clutch is working. Could you please send the wiring diagram and the freon capacity? Thank you. 10-15 seconds then back on after about 30 seconds. First and foremost, make sure the power supply to the system is turned on and check all fuses related to the unit. Jumpering switches may not resolve control circuit faults. If the system has lost its refrigerant, if there is a compressor failure, or damage to the evaporator, condenser, or refrigerant *Complete System replacement is not recommended and is not to be used for a Warrantable situation. Mechanic's Assistant: Are you repairing the truck yourself? What steps have you taken so far 2006 International 7400 AC Compressor No Power Issue 7400 models often face AC compressor power loss and faulty wiring harness connections causing system failure. hvl watkzv oetgdf fyope eyebq fodh tlf gnoentl kxmg sdsf lffqp bvkd mggzmo keheb wlxevu