1998 GMC Sierra "check engine" 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 ...

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 .

...Check coolant level while engine is cold.2. Leave the radiator cap off and let the engine run. See if you can see the coolant circulate when the engine is brought up to temperature.3. Check the ...

engine, check your ignition system to ensure you have a good spark to ignite the fuel. finally check your air filter is not blocked and that you have air getting to the engine. I hope this was helpful

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

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

...check engine light) the other day I washed the engine in my truck and drove it for apprrox 150 mile the next morning I drove for 32 miles and the check engine light came on. I had a friend of mine ...

...check engine light lit up when you turn on the key ? If it has spark ,spray some carburetor cleaner into the engine through the throttle plate . If it then tries to start you have a fuel delivery ...