Question about 1999 Chevrolet Blazer

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Hello, I have a 97 Blazer that starts intermittently and will shut down for no reason. Fuel pump was replaced about 24000 miles ago (are you supposed to hear the fuel pump working? I don't), I replaced the spark plugs the other day and tried a new coil, the wires were replaced about 1 1/2 years ago. I'm still having trouble. The battery is running down fast and I need a jump almost all the time now after 6 attempts to start it. It will run good for a long time once it atarts and I leave it running in the driveway. I replaced the vacum lines they were dry rotted. What do you suggest? Thank you, Mike

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You should hear the whining coming from the pump when the key is turned on.If you suspect he fuel pump check fuel pressure if possible or try hitting the bottom of the tank and see if it starts then.The Vortec 4.3 requires a minimum of 54lbs of fuel pressure to start.It will run on less once it is running.Will it start with an alternative fuel such as throttle body cleaner?

Posted on Jul 04, 2010


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