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SportTrac Discussion
Engine & Drivetrain
Fan moving in and out- bad water pump bearing? (also noise)
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<blockquote data-quote="StephenL" data-source="post: 1051270" data-attributes="member: 73871"><p>Would welcome wisdom to guide me</p><p></p><p>Symptom is a nasty intermittent knock/grinding noise on 2001 4.0 Sport Trac</p><p></p><p>I replaced the idler pulley and the tensioner. Bearings on both were not special, so no regrets on that, but it hasn't solved the problem.</p><p></p><p>I've put an ear against a long screwdriver touching the alternator, ac compressor and steering bodies, I can't really pin it down to one of those, all about the same volume. Same goes for the water pump BUT the pump and the fan are moving in and out between the block and the radiator ever so slightly. That doesn't seem right to me, so I'm going in for a water pump replacement thinking the water pump bearing is shot. Vesicles has 257k miles, no idea if it is the original pump but I've had it since 215k</p><p></p><p>What do you think? TIA</p></blockquote><p></p>
[QUOTE="StephenL, post: 1051270, member: 73871"] Would welcome wisdom to guide me Symptom is a nasty intermittent knock/grinding noise on 2001 4.0 Sport Trac I replaced the idler pulley and the tensioner. Bearings on both were not special, so no regrets on that, but it hasn't solved the problem. I've put an ear against a long screwdriver touching the alternator, ac compressor and steering bodies, I can't really pin it down to one of those, all about the same volume. Same goes for the water pump BUT the pump and the fan are moving in and out between the block and the radiator ever so slightly. That doesn't seem right to me, so I'm going in for a water pump replacement thinking the water pump bearing is shot. Vesicles has 257k miles, no idea if it is the original pump but I've had it since 215k What do you think? TIA [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Fan moving in and out- bad water pump bearing? (also noise)
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