Question about 1994 Oldsmobile Bravada

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Starting issue suv will not start has new fuel pump new battery and starter is fine as well as alternator. used crb cleaner and still nothng

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  • Olds156515 May 11, 2010

    Did you replace the whole fuel pump assembly or just the pump and are you sure that the pump is running when you turn the key? You should be able to hear the pump hum when you turn on the key. Also I would check for spark. There is only three major things to have in order for the motor to start. Spark, gas, and air so by eliminating things it will help narrow it down.



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Did you buy the whole fuel pump with the sending unit or did you just buy the pump itself b/c at first i bought a pump and evidently the module on the pump also needs to be replaced so the new pump wasn't holding enough pressure. I would hook up a fuel pressure regulator and see if the pressure gets up to and holds at 40-50 psi. I would also check the spark if the pump checks out as far as pressure goes. Mine was also grounding out on the bottom of the body of the bravada when the pump was up all the way but not when it is down a little, so I would check that as well. I had to use washers to drop the tank down in order for the pump to work. Well, I gave you a list of possible things that may be wrong, so Good Luck!

Posted on Dec 16, 2009


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