I. A. C. Torque spec

[Jack Schneider]

Hello! I FINALLY got the ac in my truck converted to R134 and it shakes pretty good at idle with it on so I’m going to replace the IAC and see if that helps. Does anyone know the torque for it? I know it’s 13ft lbs on a TPI engine but I wasn’t sure it would be the same for the TBI engine and my manual doesn’t say crap about it.

 

[df2x4]

Have you checked the GM factory service manual for '92? (Assuming you're talking about the truck in your sig) You can find them here.

https://www.gmt400.com/threads/88-95-service-manuals.43575/

 

[Schurkey]

Connect a scan tool, diagnose the problem before firing the parts cannon.

What is the commanded idle speed vs. actual idle speed?

Does the computer know the A/C compressor is running?

For that matter, what is the high-side pressure of the A/C system?