2000 chevy 1500 running and idling bad

Asked by Apr 12, 2017 at 10:52 AM about the 2000 Chevrolet Silverado 1500 LS Ext Cab Short Bed 4WD

Question type: Maintenance & Repair

I have a 2000 chevy 1500 Ls and it idles rough. And
when I take off some times it like bogs out and
almost shuts off. I put new o2 sensors in and catilic
converters. Any body know what's wrong?

4 Answers

74,755

Should check the fuel pressure, change out the fuel filter first. Possible bad fuel regulator. You would have to rev the engine up to see if the fuel pressure holds within the proper limits.

74,755

Also the Air Idle Control Valve along with the throttle body should be cleaned, and the Mass Air Flow Sensor cleaned with MAF spray cleaner.

It has a new mass air flow sensor. But I'll do what you said. Thanks

74,755

If the MAF is new then it should be fine. Check that IAC and clean the port out good along with the valve first. Otherwise check the fuel pressure and regulator.

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