Jeep Grand Cherokee (WK2) - A/C Clutch Will Not Engage
video description
I would think you would take the test light, connect the test light ground to +, then probe c3 #10 to see if the pcm lights the test light.
Date: 2022-09-22
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Comments and reviews: 14
tazmun
I have learned working for a company there are issues reengineering things. It is assumed that the engineers who designed the product and the factories that created the product took the safest and best way for the consumer of the product. Boiling down what I m trying to say into fewer words you can have a lot of legal difficulties over troubles like this if you just decide to reengineer it on your own unless it is your own and even then I wouldn t be blabbing about my great repair.
What I do wonder is about the possibility of taking the power distribution center out and giving it to an electronics repair shop to fix the relay issues and then again you reinstall upon the repair. My questions would be Will there be issues about the electronic repair shop not being licensed or certified to work on automotive products.
reply
I have learned working for a company there are issues reengineering things. It is assumed that the engineers who designed the product and the factories that created the product took the safest and best way for the consumer of the product. Boiling down what I m trying to say into fewer words you can have a lot of legal difficulties over troubles like this if you just decide to reengineer it on your own unless it is your own and even then I wouldn t be blabbing about my great repair.
What I do wonder is about the possibility of taking the power distribution center out and giving it to an electronics repair shop to fix the relay issues and then again you reinstall upon the repair. My questions would be Will there be issues about the electronic repair shop not being licensed or certified to work on automotive products.
reply
TheKnightsGamingHD
This helped a lot, I got a 08 Audi A3 no AC it died on me randomly and there's no Relay. I had Pressure switch not sending voltage to Compressor Solenoid I swapped pressure sensor and now voltage at compressor valve and switches valve too just in case and still no AC I'm thinking my HVAC module might be the culprit since the car had water entry but I opened it up and didn't look fried on any bag solders so idk now, no codes. But maybe there's built in stuff like this one I'll look into it more thanks
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This helped a lot, I got a 08 Audi A3 no AC it died on me randomly and there's no Relay. I had Pressure switch not sending voltage to Compressor Solenoid I swapped pressure sensor and now voltage at compressor valve and switches valve too just in case and still no AC I'm thinking my HVAC module might be the culprit since the car had water entry but I opened it up and didn't look fried on any bag solders so idk now, no codes. But maybe there's built in stuff like this one I'll look into it more thanks
reply
Louis
Had a new customer come in with a no AC issue. They stated that the dealership said they needed a compressor. System was full of freon but no power was going to the compressor no codes And the relay was working with power on both sides. Started checking the harness and found a place that was cleaner, pulled back the wire wrap and found that the wire going to the compressor was cut. It was a clean cut that looked like it was done with a pair of dikes. Fixed the wire, charged the customer and said done
reply
Had a new customer come in with a no AC issue. They stated that the dealership said they needed a compressor. System was full of freon but no power was going to the compressor no codes And the relay was working with power on both sides. Started checking the harness and found a place that was cleaner, pulled back the wire wrap and found that the wire going to the compressor was cut. It was a clean cut that looked like it was done with a pair of dikes. Fixed the wire, charged the customer and said done
reply
The98deville
My father and I had brand new 2003 Dodge Rams, mine had the 4. 7 V8 and an open differential and his had the Hemi and a limited slip, mine was blue and his was green, they were otherwise identical, everything that happened to one happened to the other within a few hundred miles of the other, warped brake rotors around 12, 000 miles, transmission shift lever broke at under 6, 000 miles, rear end went out around 29k miles. Never again for me.
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My father and I had brand new 2003 Dodge Rams, mine had the 4. 7 V8 and an open differential and his had the Hemi and a limited slip, mine was blue and his was green, they were otherwise identical, everything that happened to one happened to the other within a few hundred miles of the other, warped brake rotors around 12, 000 miles, transmission shift lever broke at under 6, 000 miles, rear end went out around 29k miles. Never again for me.
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Randy
I ran into the same thing a few weeks ago. the clutch would not turn on, all inputs looked good and system had pressure. until I tried to locate the relay on the wiring diagrams did I find it was part of the circuit board. When I removed the pdc I found I had power from the relay and the clutch started working. banged on the pdc and clutch would work then not work.
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I ran into the same thing a few weeks ago. the clutch would not turn on, all inputs looked good and system had pressure. until I tried to locate the relay on the wiring diagrams did I find it was part of the circuit board. When I removed the pdc I found I had power from the relay and the clutch started working. banged on the pdc and clutch would work then not work.
reply
Byron
Being a 50 mechanic
I no longer do anything for free
I charge by the minute, not by the 10th of the hour
Nope
No more nice guy
All you millennials making 150k a year
Nope
I have invested 200 k in tools
You have invested
Zero
Only finger cutter for you finger nails
No
Screw you
Time to pay up you basement piece s of shit
reply
Being a 50 mechanic
I no longer do anything for free
I charge by the minute, not by the 10th of the hour
Nope
No more nice guy
All you millennials making 150k a year
Nope
I have invested 200 k in tools
You have invested
Zero
Only finger cutter for you finger nails
No
Screw you
Time to pay up you basement piece s of shit
reply
Peter
. on back order for 2 years. . And THAT is why it's at your shop. Someone was hoping you'd pull a technical rabbit out of your hat I'm bettin'. ;) Can you imagine making the call, ordering the part, waiting a year only to have it show up and NOT fix the problem? No shop wants that liability!
Good job as always!
reply
. on back order for 2 years. . And THAT is why it's at your shop. Someone was hoping you'd pull a technical rabbit out of your hat I'm bettin'. ;) Can you imagine making the call, ordering the part, waiting a year only to have it show up and NOT fix the problem? No shop wants that liability!
Good job as always!
reply
Gunga
I went to my local Ford dealership part department looking for OEM exhaust manifolds for a 5. 4 in a E350 van. No stock and a 6 week back log on getting passenger side, 10 weeks for drivers.
Seeing how I'm going to have to stud weld to 10 out of 16 exhaust studs, the wait time for parts might coincide.
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I went to my local Ford dealership part department looking for OEM exhaust manifolds for a 5. 4 in a E350 van. No stock and a 6 week back log on getting passenger side, 10 weeks for drivers.
Seeing how I'm going to have to stud weld to 10 out of 16 exhaust studs, the wait time for parts might coincide.
reply
KuroiKuroDesu
Ugh, I hate when they solder the relays to the PCB. I have a Mini Cooper where the blower motor wasn't working. After a lot of diagnosis I traced it down to the blower relay. Which, you guessed it, is soldered to the board in the fuse box. An ebay search and 80 later, and it works again.
reply
Ugh, I hate when they solder the relays to the PCB. I have a Mini Cooper where the blower motor wasn't working. After a lot of diagnosis I traced it down to the blower relay. Which, you guessed it, is soldered to the board in the fuse box. An ebay search and 80 later, and it works again.
reply
Anthony
I guess I ve been lucky, I own the diesel model and have never had an issue with it, I replaced the parts that are known to fail like the hose in the valley and keep her well maintained. Parts in Australia are ridiculously priced but I d still prefer American than Chinese.
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I guess I ve been lucky, I own the diesel model and have never had an issue with it, I replaced the parts that are known to fail like the hose in the valley and keep her well maintained. Parts in Australia are ridiculously priced but I d still prefer American than Chinese.
reply
Wrights
The scan tools also do relay testing turning them on and of and you just listen to make sure they click back and forth but im sure you know that, it just sucks that there's so many mechanics out there who don't mess with electric issues and trouble shooting them anymore.
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The scan tools also do relay testing turning them on and of and you just listen to make sure they click back and forth but im sure you know that, it just sucks that there's so many mechanics out there who don't mess with electric issues and trouble shooting them anymore.
reply
Wrights
I use the ms 906ts scan tool myself and there 4 way oslyscope mp408 and for an at home shop that dose general repairs and classic restoration prodjects these tools are all I need along with my power probe etc3000 short chaser another must have in my book!
reply
I use the ms 906ts scan tool myself and there 4 way oslyscope mp408 and for an at home shop that dose general repairs and classic restoration prodjects these tools are all I need along with my power probe etc3000 short chaser another must have in my book!
reply
snoopdogie187
When you were reading that relay list, I feel like you listed hvac stuff more than once. I'm wondering if something is mislabeled, or I am just missing something. Of course, the alternative is a standalone relay, attached next to the the PDC.
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When you were reading that relay list, I feel like you listed hvac stuff more than once. I'm wondering if something is mislabeled, or I am just missing something. Of course, the alternative is a standalone relay, attached next to the the PDC.
reply
2packs4sure
Good Lord that's pathetic, what a crappy unserviceable design.
I can see myself tacking a wire on the positive side of that relay on the circuit board and running that wire out to an external relay and switching that clutch with it.
reply
Good Lord that's pathetic, what a crappy unserviceable design.
I can see myself tacking a wire on the positive side of that relay on the circuit board and running that wire out to an external relay and switching that clutch with it.
reply
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