Question about 2002 GMC Envoy
The service engine light you refer to is telling you you have a problem with the computerrized engine control of the car.When the light comes the computer stores a numerical code that can be retrieved with a scan tool or code reader.If you are not experienced with diagnostics you need to take the car to a mechanic,because sometimes a code can fool you and you can change a good part.An example of this would be reading a code that the oxygen sensor is reading a lean condition setting the light on. but the real issue is a bad fuel pump not supplying enough fuel to the engine. On the code alone you would be inclined to change the sensor when it was not the problem.
Posted on Nov 26, 2008
check the wiring at the column make sure nothing is dis connected you might have hooked up a wire in wrong place voltage change will cause light to come on
Posted on Oct 19, 2009
Have your ABS Wheel Sensor checked, it is mounted on the hub of your axle. it could have gotten dirt on it or it is bad and it is not giving a signal to the ABS Module.
Posted on Jun 13, 2010
they are bolted in a not to hard to remove once the air is drained from them however you can not drive it without the air bags. It will bounce way to much to control the truck.
Posted on Nov 30, 2010
Tips for a great answer:
Mar 23, 2015 | 2002 GMC Envoy
Sep 23, 2013 | 1998 GMC Jimmy
Aug 20, 2012 | 2006 GMC Envoy Denali
May 26, 2012 | 2003 GMC Envoy
Jul 11, 2011 | 2004 GMC Envoy
When the airbag light (SRS) is on or blinks it means a fault has occurred in the system and the airbag diagnostic monitor has disabled the system, the most common problem that turns the light on is a break in the connection to the steering wheel mounted airbag, this is due to a rotating ribbon contact that breaks under the steering wheel that connects the airbag to the wiring harness and the diagnostic monitor, the part is called the clock spring contact, a coiled up ribbon electrical contact that turns with the steering wheel while maintaining a mechanical connection to the airgag mounted on the steering wheel, to replace this part you must disarm the airbag system and remove the steering wheel, this requires a special steering wheel puller tool and that you disarm the airbag system before you start the work, to do this disconnect the battery negative cable for 15 minutes prior.
Oct 25, 2010 | 2002 GMC Envoy
Jul 30, 2009 | 2002 GMC Envoy
Mar 24, 2009 | 2001 GMC Yukon
1,050 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: