89 Iroc camero
Midnight black with blue stripe

-car starts no problem and runs just fine... for the first 10-20 minute until it starts to warm up and as it get warmer the car just keeps getting ruff'r and all the way untill the car stalls out and dies..will not start untill the car cools down again... which takes about an hour.. and runs just fine,
and the cycle begins all over again.. all most like the car never really dropped outta choke... first set of fans turn-on to cool the car.. the second set of fans never turn on, but manually they turn on and work just fine....

parts changed:
85% wiring harness / computer / plugs / distributar /

unable to find any problem thought computer software..


please: i know i couldnt cover
everything please lets talk

 

Sounds like IAC, also check the TPS(.54v) and CTS.

Pull IAC and check it (length = 1 1/8") ... look in chilton/haynes manual
Hold it upside down (spring down) and spray it w/carb cleaner - a little, dont kill it. Put a squirt in the IAC chamber on the throttle body. See if it improves it.



Put some fuel injector cleaner in the tank. Run it.

Could be a number of things ... any codes ?

Your MAF could be going too

Only one fan will kick on, thats normal,(@ 227 degrees) fan 2 comes on when AC compressor is running.