Questions & Answers for: silverado rough idle

Silverado rough idle, idles good after "check engine" light My 2003 silverado idles very rough, and then the check engine light comes on. After the light comes on, it runs great and idles very smooth.

...silverado..5.3...motor idle rough.. getting 3 codes ok.. here we go.. engine is idleing rough blows black smoke when motor is revved up..poor gas mileage.. and get 3 codes coming up..and they r PO171 ...

Silverado Diesel has started idling roughly when warmed up. I was told I need a fuel pressure regulator. How soon should I have this done and what effect does a defective unit have on fuel consumption

Silverado idles rough why? 1992 Chevy Silverado 305. I have changed the EGR, O-2 Sensor, Idle control valve, new fuel pump, and new plugs and wires and all fule lines have been blown out. The truck is

silverado that ideles rough i i have 2003 chevy silverado that ideles rough i replaced the battery because it was dead i had the alternator cheched out an they say it's good . what would cause it idle

...Silverado 2500 6.1L the truck idles rough then dies. How do you reset the computer? If your getting a check engine light on the dash,you need to correct the problem first,If you want to clear codes ...

...Silverado 2500 HD hard to start after filling with last fuel fill. Idles very rough, but runs fine at top speeds. Very rough at idle in gear. you should first test the computer system for trouble ...

The vehicle idles rough. Also had a few codes The vehicle idles rough. Also had a few codes before the rough idling began (throttle position sensor) Try cleaning TAC valve, spray throttle body cleaner

SILVERADO TRUCK hardly driven only 50000 miles started up ran for 15 min just in neutral then died out. tried starting starts but rough idle cannot idle now. likely a blown head gasket sucking air and

...silverado 4.8 rough idle at initial start. Will stall if put into gear right away. Only started happening this winter. Only 5300 miles. Truck has k WELL YOU HAVE NEW VECHICLE UNDER WARRANTY.I WOULD ...