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Fuel pump is noisy is brand new but makes load high pitch noise

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Different style drives in pump one was impellar the other is turbine

Posted on Jul 23, 2009

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How to fix a noisy water pump on a grand jeep Cherokee 2007 3.00 deseil


a noisy water pump ( low growl or rumble noise) is a problem bearing and the cheapest fix is a new water pump
squeaks or other high pitched noises can be tested with soapy water on the belt--noise will stop for a short period of time
If the water pump housing is cast iron, you may be able to get a repair kit for the pump but the cost of the kit and the labor to do the job is generally around the price of a new pump

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Fuel pump in the tank makes a high pitch sound which is normal. Turn your key in the ignition, but don't start, you should hear the high pitch sound with the pump priming the system. You will still hear it when started, it's annoying but normal. Different brands are quieter than other, I just replaced mine with a Delphi brand fuel pump which is a tad quieter than AC Delco stock pump.

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