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AC on engine races


BIG SHOOTER
06-08-2008, 02:53 PM
97 S10 Blazer 4x4 4.3 Idle jumps to 1200 rpm when AC is turned on. How can i fix this.

tempfixit
06-08-2008, 10:48 PM
97 S10 Blazer 4x4 4.3 Idle jumps to 1200 rpm when AC is turned on. How can i fix this.

Check for a vacuum leak.

BIG SHOOTER
06-09-2008, 06:09 AM
Checked for vacume leaks. Everything check ok no leaks. Is there a some type of switch to raise the rpms for the ac when it is turned on.

BIG SHOOTER
06-10-2008, 04:16 PM
Still broken. Does anyone have a idea?

MT-2500
06-11-2008, 09:25 AM
You might try cleaning TBI and IAC valve.

And get a engine capable scanner on it and check out and test actual idle and desires idle iac and rpm readings.

BIG SHOOTER
06-12-2008, 06:16 AM
Thank You , MT-2500 I will plug in a scanner this weekend.

MT-2500
06-12-2008, 09:08 AM
You are welcome and let us know what you find.
Good luck
MT

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