The check engine light is triggered by the vehicle's computer when a fault is sensed. Have your computer scanned for the trouble codes. An OBDII scanner will be necessary, there are some auto parts stores that will scan free of charge.
With an OBD2 scan tool.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Have vehicle scanned to determine the problem and have codes cleared
have vehicle scanned to determine the problem
It could be as simple as the brakelight switch. www.trailvoy.com All the answers for your Envoy and Trailblazer
Get a code reader from Autozone or a friend and plug it into the OBDII connection to read what code caused the check engine light to illuminate. A flashing check engine light indicates to NOT drive any further.
The obdII connection is on the right side of the steering column mounted on the edge of the the lower dash panel.
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool. After repair light can be shut off with scan tool.
my engine light came on i had the fan belt replace and the light never stop coming on after paying 450.00, about two months later the gas gage stop working how do i know what's happening with my gmc envoy 2005?
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool. After repair light can be shut off with scan tool.
Reduced engine power may be many things but the reduced engine power will also throw a trouble code. Get that information to diagnose your problem. If the check engine light is on steady it is usually OK to drive however if it is flashing you must shut the engine off. A rich running condition will cause your catalytic converter to overheat and melt. www.trailvoy.com All the answers for your Envoy and more!
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.