1992 GMC Sierra "check engine light" Questions

check engine light means something has happened to the performance of the engine to affect emissions.  You need to get the computer scanned for trouble codes to proceed.You can research "GM check

...check engine light came on. Blew off engine.wiped off distributor put new spark plugs in. changed gas filter & air filter. The check engine light usually goes off. The engine runs a little rough when ...

Check Engine light on. autozone checked computer New gas cap installed check Engine light on again New Fuel Pump recently installed prior to light problem Thanks just a hunch check o2 sensor

2010 gmc sierra engine half power check engine light shaking and lack of power Check engine light on steady or flashing ? Have the DTC'S - diagnostic trouble codes checked .

...engine warning light.Check all fluid levels.Check all electrical and non electrical connections to the engine.If no apparent faults seem to exist, then have a garage performa diagnostic trouble ...

check engine light was changed now doesnt go on at all did not pass emissions due to check engine light so i replaced it with new now doesnt even go on when i first start truck When you turn the key ...

...check engine light on my dashboard..it doesnt come on when i turn the key and i dont know if the lights burned out or if one even exists do you maybe have a light that looks like a little engine or a ...

check engine light had been come'n on and going off now its staying on what should i do.... Get an OBD-II scanner (like a $98 one at Walmart) that can scan the computer for stored codes. This can tell

...dropped. i suspect oxygen sensor as vehical has 150,000 miles on it. The vent solenoid may be the Fault area. Please reply with what type of light it is. Check engine light or Service engine

...check engine light comes on. Also between shifting I push in the clutch the engine revs up between shifts. Any suggestions???? is the dome override switch off and need to have system scanned to get a ...