Drivetrain Vibrations
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Drivetrain Vibrations
So after lending out my 2002 F-150 out (4.2L, 5sp, 46kmi) I get it back three days later and just noticed when driving at around 50+ I have a vibration when giving the truck gas. When I let off the throttle or push in the clutch it goes away. Best way to descibe the feeling: it's like driving 30mph in 5th and getting on it.
Second, when the clutch in released (not pushed in) and I am in 1st or 2nd gear driving slow, I have a scraping/squeaking sounds comming from what seems like somewhere in the back but I can't be sure. As soon as I push the clutch in the sound goes away (even with the truck rolling still)
Third (possibly unrelated), I've always had this problem: when everything is up to normal operating temp after driving a bit, when I shift into third I get a light grind, no other gears though.
I'm now thinking I should have kept the '88.
Any Ideas? Thanks
Jason
Second, when the clutch in released (not pushed in) and I am in 1st or 2nd gear driving slow, I have a scraping/squeaking sounds comming from what seems like somewhere in the back but I can't be sure. As soon as I push the clutch in the sound goes away (even with the truck rolling still)
Third (possibly unrelated), I've always had this problem: when everything is up to normal operating temp after driving a bit, when I shift into third I get a light grind, no other gears though.
I'm now thinking I should have kept the '88.
Any Ideas? Thanks
Jason
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Anyone? Any chance this could be as simple as u-joints? If this were the case, wouldn't the "squeaking" sound be made all the time and not just when the clutch is engaged, because the driveshaft should spin when the tires move. Any ideas?
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Joined: Nov 2004
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It could be u-joints - one of the symptoms is the noise goes away when the clutch is pushed in or when the tranny is in neutral. Crawl underneath and give the u-joints a shake - if there's movement, the u-joints need replacement. If there is no movement, you still aren't out of the woods - I had a case once where the u-joint bearings were half-frozen with rust - no movement when shaking, but some shuddering/racket when moving - you have to drop the drive shaft and move the u-joints to find this out.
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