Makes grinding noise when let off the gas pedal but stops when you accelerate
SOURCE: Trans clunking when slowing down
Sounds like youi may have a few serious problems going on to have that kind of back lash occuring at higher speeds. I have experiance with low spped clunks on Bronkos and your type of vech being a car dealer. One you might try for low speed clunk on take off and braking at stop likts just completeing a stop? Pull the drive shaft and lubricate the splin - two check your leaf springs for weakness and wore bushings - take a look at your shocks - three u bolts holding springs to rear axle housing may be letting the axle housing actually dip or tweak or all those thing in combination - now you may have some serious slop in the pig - transfer case may be causing that clunk - as far as high spped clunk and activity you have a serous problem and you just might drop the transferr case have an accident fliping over..............Mike South Bend Indiana don't just keep driving and making problem worst...........
SOURCE: making a knocking noise
This is most likely either a piston noise or a connecting rod bearing knock
SOURCE: dry squeaky grinding noise 2003 explorer
That's where I'd go first. check with driveline unloaded (neutral with wheels off the ground.)
SOURCE: Transfer case is making a grinding noise in 2wd,
Depending on how long the grinding has been going on, the IWE ( integrated wheel ends ) might need to be replaced.
The problem that causes the symptoms is either cracked vac lines from the IWE solenoid, or a faulty IWE solenoid.
Check the vac lines to the IWE, this is the block diagram of the setup
Use a visual inspection and vac tester ( might vac with a gauge on it ) to test the lines.
Testimonial: "great! It was cracked vacuum lines. Thanks for the feedback!"
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