Questions & Answers for: engine light gmc sierra

Engine light stays on 2004 GMC Sierra 1500 the engine light is always on, sometimes flashes abut never goes away. the problem started when the temperature reached -31. occsionally idles rough as well.

...control tbi Oxygen sensor[s],map sensor and fuel pressure regulator.Although you should have a check engine light "on" with any sensor malfunction.I would look at fuel lines for a leak under

how do you reset a check engine light on a 2008 GMC 2500 HD Sierra Check engine light will go out when the management computer detects no more errors. Pull the codes and repair what they indicate.

...at a local auto repair shop. "Engine hot, a/c turned off" light is blinking. Temp gauge stayed on 160. Doesn't seem like engine is overheated. Fan sounds louder. (2009 GMC

...Engine" light on?  Scan your onboard computer system for possible fault codes even if your engine light is not on.  There are some fault codes that can set without turning the light on.If ...

...Engine light is on? What could that mean? The check engine light means something has happened to the performance of the engine to affect emissions.  You need to get the computer scanned for ...

Flashing engine light 96 gmc Sierra 5.7 vortec engine the cpu has found sensor/s that are outside set parameters. have the fault codes read and replace found faulty sensors.

...engine light came on. I had the spark plugs replaced and the engine light went out. It came back on and now it sputters when I accelerate, the engine light also starts to blink then goes back to ...

...light work intermittently on my 2000 GMC Sierra truck, any suggestions on troubleshooting? Make sure you have good ground not only to the engine but from either battery to body and chassis or engine ...

then noise stops and engine light comes on. But still no codes on scanner. Did you change the ECM to match the newer engine? https://www.google.com/search?q=1992+GMC+Sierra+ST%2C+5.7+TBI+runs+rough .