service engine light on 2002 Chevrolet Avalanche 1500

I just parked my truck and came back out side to it starteded up then all the sudden it started to vibrate really bad and service engine light came on while it was just idling felt like truck wanted to just die but while driving it works fine what could be causing this

by in Saint Louis, MO on June 23, 2010
1 answer 1 comment
ANSWER by on June 23, 2010
Sounds like a misfire, leaking injector, failing fuel pump or could be something else. It's really hard to tell without running a few tests and checking for diagnostic trouble codes in the computer. I suggest starting with checking those codes with a scan tool.
COMMENT by on June 23, 2010
OK ty
Related Items:
It started doing it when i would drive, maybe once or twice a day. Now it does it right when you start it. I cant even get out of the driveway. What do i need to change on it?
Gas will not enter tank without the pump shutting off every two tenths of a gallon
abs and brake lights come on whenever im going over a small bump or pot hole it also says to se...
A poor electrical ground under the battery tray may cause the ABS warning light to illuminate. Our technicians tell us that cleaning and properly securing this ground and also the main ABS ground ...
I dont what "check engine oil life 95%" means? it happen where my miles would nomally show.