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The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
What else can I help you with?
Why would the check engine light come on with a 2004 GMC envoy?
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.
How do you reset06 GMC Sierra Check Engine Light?
You need to rent / purchase an OBD II code reader to check & reset the check engine light.
What causes the check engine light to go on a 2001 GMC Jimmy?
Check your gas cap.....My check Engine light always comes on if it is loose or not on at all.
How do you reset the check engine light on a 2003 GMC Savana?
It is important to make sure the check engine light is not on when having a car inspected. A person can reset the check engine light by clearing the codes that are causing the light to go on.
2003 gmc Yukon check engine light comes on what could be the problem?
changed battery engine light stays on
What is a p1404 code?
check engine light code on my 2001 gmc truck
What is code p1404?
check engine light code on my 2001 gmc truck
How do you reset the check engine light on 1996 gmc truck?
To reset the check engine light on a 1996 GMC truck, you can disconnect the battery by removing the negative terminal for about 15 minutes. This will clear the vehicle's computer memory and reset the light. Alternatively, you can use an OBD-II scanner to erase the trouble codes, which will also turn off the check engine light. However, it's important to address the underlying issue that triggered the light to ensure it doesn't come back on.
How do you remove the check engine light from 2009 gmc sierra 2500hd?
The Check Engine light is on because there is a problem with the emissions system. Once you have the problem repaired the light will go off.
Why does your thermostat light come on and what can you check on 1998 GMC Sierra Chilton truck?
What is a thermostat light?
How do you get the check engine light codes on a 2004 GMC envoy?
With an OBD2 scan tool.
Can anyone please tell you why your check engine light dos not come on when you turn the switch on an why you have no power at your fuel injectors on a 1994 GMC Sonoma with the throttle body carbAny i?
Yo need to check the powers and grounds to the engine computer
