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I have a 1991 Chevrolet Camaro Rs V6....It will turn over but only sometimes will it fire adn start....when it does start it starts up quick and runs perfect but I cant seem to find out why it only starts at certain time and it seems like it might be getting worse now.

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The most common cause of this would be a failing electric fuel pump, the average life of most pumps is about 100,000 miles, worse if you run the tank below 1/4 full which starves the pump of the cooling efect of the gasoline it runs in.. The fuel pump in this car is located inside the gas tank. To confirm you have a fuel pump issue get a can of spray starting fluid and the next time the car won't start spray the fluid into the air intake of the engine while a helping hand cranks the engine, if the car starts right up you have a fuel pump problem. The sticking pump problem can be intermittent in nature and often is, so just because it works sometimes and is does not pump other times is not unusual. I also want you to perform one other test, that is to test the engines electronic control module for fault codes, the test is referred to as the OBD1 fault code test. At the URL web link below you will find the procedure for doing the fault code test on this car.

Posted on Apr 03, 2011


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Well code 12 means you are in the test mode of the computer, so skip that one.
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