Question about 1997 Chevrolet K1500

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Hard Starts, Rough Idle

I have a 1997 chevy truck w/ the 5.7 liter engine. The Truck starts very hard and idles rough sometimes. Not all of the time though. I have already replaced the distributor, plugs, wires, fuel filter, and air filter. Could this problem possibly be caused by a fuel pump going bad?

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Certainly possible.Key on /engine off cycles the pump for 3 secs.In a quiet place like an enclosed garage you can hear these pumps running and at this stage it might sound abnormal, louder and squeel-ish in a sense.Then can be verified by taking fuel pressure readings with a test gauge...good luck

Posted on Jul 26, 2009

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Posted on Jan 02, 2017

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