nirvana_1959

Symptom: A/c is not blowing cold air (blower fan is working)

Background: Three years back a/c was not working. Charged with Arctic Freeze. Worked for couple of years. A/c stopped working last year. Since it was late summer (I live in Toronto area) I didn't bother with it. Couple of days back tried to troubleshoot the problem with the newly bought HF gauge. Both low-side and high-side showed some pressure. Radiator and condenser fans were running. However, a/c clutch was not engaging. Meanwhile I lost the remaining H134A (thanks to very poorly made HF gauge). Now the fans don't come on when I turn on the A/c.

Troubleshooting: Followed SM's "Compressor Clutch Circuit Troubleshooting" steps. Fuses and the compressor clutch relay were fine. Jumping the clutch relay didn't produce any clutch click. Checked the relay socket with Power Probe III. Terminal 2 (on the relay socket) produced 12 V. Terminal 1 didn't show as ground (other relays I tested did). Now I am stuck at step 15 "Disconnect the compressor clutch 1P connector".

Questions:

1. Where is the compressor clutch 1P connector and how to access it ?
2. How to access compressor clutch (to do compressor clutch check) ? From the bottom (after removing the splash shield) or from the front and top after removing the bulkhead, bumper, grill etc. ?
3. Where is the ECM/PCM connector and how to access it ?

Thanks!

nirvana_1959

Update: I got he vehicle on the ramps and removed the engine splash gaurd. From below I am able to access the 1P connector and was able to establish there is continuity between terminal #1 (relay socket) and 1P connector.

nirvana_1959

Just one question I would like answered please...

Best way to access the compressor/clutch for troubleshooting / replacement (pithy overview will do).

Thanks!

kmoese

Did you end up figuring it out? I am in same spot - was it just the clutch that was the problem or did you have to replace the whole compressor?

holmesnmanny

number one cause of clutch not engaging is too little refrigerant(leak)

if you got refrigerant then the clutch air gap could be too great, you can try tapping it and see if it engages