2011 Chevrolet Silverado idles low

20

Asked by Dec 07, 2014 at 01:47 PM about the 2001 Chevrolet Silverado 1500 Extended Cab LB 4WD

Question type: Maintenance & Repair

I just got my truck out of the shop, had the catalytic converts replaced , it idles really low.
What could be the problem?

5 Answers

4,805

Idles "low" but runs right? Maybe you got used to the engine working harder before because the old catalyc converters were clogged? :)

1 out of 1 people think this is helpful.
56,825

Define "really low". Normal would be about 500 to 750 RPMs. You can check the plug for the IAC (Idle Air Control) valve. But they should not have been any where near that. Is your check engine light on? HTH. -Jim

20

Yes

1 out of 1 people think this is helpful.
20

Idles lowin park and want to die

1 out of 1 people think this is helpful.
56,825

Ok, since the check engine light is on have the computer scanned and post the trouble code(s) here. Most auto parts stores will scan your computer for free. Then we can tell what's going on. HTH. -Jim

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