Hmm... Not sure on the AC Delco and Delphi... I do believe that NTK (NGK) is supposedly the manufacturer of the sensors for AC Delco / GM, but I cannot prove it.

But anyway, just stay away from Bosch and Borg Warner as those are the two that I have used in my Bravada with absolutely HORRIBLE results as found through my scans.

 

My 2000 blazer compressor is doing the same thing, cutting on for a few seconds and then off. I tried adding R-134a while the compressor was on, but it never kicked in or got cold. Can someone elaborate on how to jump the clutch and what is needed to do this? Thanks again for any information.

 

Ok, I'll try to point you guys in the right direction. For me, I find it easier to pull the A/C clutch relay and jumper pin 30 to pin 87. This should engage the clutch. The relay is located in the underhood fuse block for the 96+ crowd... Not sure on the older ones.

 

kyle my 99 does not show the numbers you specify? can you elaborate further. I am havinf the same problem ans i appreciate your know how!

tonio

 

hmm... Well, the relay's on my truck (OMRON 8567 - OEM # 12088567 all except for one) had a diagram on the side of it showing the schematic of the relay as well as pin numbers on the very bottom next to each pin.