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Posted on Jan 02, 2017
The check engine light 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.
A flashing check engine light is an indication of a severe misfire or problem that is likely to harm your engine. Immediate diagnosis and service is needed.
Some specific causes for the light to be on are:
Gas cap left off, not tightened, not installed correctly, or needs to be replaced
Engine misfire - error might clear itself after 3 complete warm-up cycles; not restarts, but warm-ups
At start up for a bulb check - Should not stay on
Problem in the emission system, including clogged exhaust or the catalytic converter not functioning properly
Dirty/clogged air filter
Dirty MAF sensor
Posted on Jan 08, 2010
Try having your braking system checked, it may be a vacuum problem. I had the same problem and it was a vacuum problem...it's easy to fix.
Posted on Apr 18, 2009
SOURCE: fuel pump stopped
its probally not the relay but it is in the large fuse box under the hood , a rectangular grey or black plastic block. try banging the fuel tank 3 or 4 times fairly hard then try to start the truck. repeat this a couple of times if you truck starts then its the fuel pump its self. chevy s are known for there fuel pumps
Posted on Apr 28, 2009
I do not mean to be hurtful and it will take some time to do. Maybe all day if you have no experience. If you need instructions just maybe you should have some do it for you.
Posted on Feb 08, 2010
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