Question about 1996 Jeep Grand Cherokee
A good pump and a bad one look identical; problem with the bad one is that after running for a while, it gets hat, begins to bind and then stops. Once cooled down, it will repeat the process. Even when pressure testing, it may "seem" fine but not be., 'till it gets bad enough to show up during testing. Your crank position sensor can act the same way, so can an ignition coil. (internal expansion during heating shows internal shorting.) When in "no start" check for spark. This should separate fuel problem from ignition related stuff. Then, go from there. Do real testing...guessing and replacing parts can cost you a fortune.
Posted on Jul 29, 2009
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Posted on Jan 02, 2017
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