TOB or Input shaft bearing BAD? Need help diagnosing issue.
#1
TOB or Input shaft bearing BAD? Need help diagnosing issue.
I Just purchased a truck for my brothers 16th Bday. 2003 F150 XL 2WD 4.6 Triton. 5 speed manual
The previously owner just had the master cylinder, slave cylinder and clutch replaced by a friend. He gave me the receipts.
The issue is there is a loud "chattering" coming from trans area. While in neutral it's loud when u press's down on the clutch pedal the noise goes away.
Have searched your forums and found them helpful in narrowing down the issue. Some say throw out bearing some say The input shaft bearing while others suggest pressure plate need resurfaced. (Do not know if it was resurfaced when clutch was replaced)
Any questions will be answered immediately. Thanks for the help in Advance guys.
The previously owner just had the master cylinder, slave cylinder and clutch replaced by a friend. He gave me the receipts.
The issue is there is a loud "chattering" coming from trans area. While in neutral it's loud when u press's down on the clutch pedal the noise goes away.
Have searched your forums and found them helpful in narrowing down the issue. Some say throw out bearing some say The input shaft bearing while others suggest pressure plate need resurfaced. (Do not know if it was resurfaced when clutch was replaced)
Any questions will be answered immediately. Thanks for the help in Advance guys.
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A flywheel in need of resurfacing isn't going to cause a rattle, it's going to cause a chatter when you let out the clutch in gear to get moving. It's quite likely a shot input shaft bearing in the transmission (common issue with the M5OD, especially behind a V-8), possibly a bad throwout bearing or pilot shaft bearing, or a loose flywheel or pressure plate - or something not properly installed or incorrect part.
#5
Here is something you might try as a troubleshooting measure. While in neutral with the engine running, push the clutch pedal down about an inch or thereabouts. The idea of this would be to put SOME pressure on the pressure plate fingers, but NOT ENOUGH to disengage the clutch. By not disengaging the clutch, the input shaft of the transmission would still be turning. I realize when doing this, you won't know at what point the clutch actually releases and the input shaft of the transmission stops turning. Something to try anyway.
Yes I suspect either the pressure plate rattling or the input shaft bearing on the transmission.
Yes I suspect either the pressure plate rattling or the input shaft bearing on the transmission.
#7
My apologies for late reply. While in neutral and the truck running I slowly pressed down on the clutch pedal. The noise did not go away until I was practically all the way down. And it just didn't stop it slowly stopped. I could hear it winding down.
Also it goes through all it's gears but It almost seems like there is a loss in power between gears. If I put it in 3rd gear at 40mph is bogs out a bit as if I shifted to early.
Thanks again for all the insight
Also it goes through all it's gears but It almost seems like there is a loss in power between gears. If I put it in 3rd gear at 40mph is bogs out a bit as if I shifted to early.
Thanks again for all the insight
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I just realized today also that when I'm parked on a slight incline and the engine is off and it's in gear the truck will roll backwards. Just a little bit at a time. (The ebrake doesn't work). So I just park and put it in gear
On all my other manual vehicles if I out it in gear to park it they don't budge unless it's a really steep incline.
Didn't know if this would help diagnose issue
On all my other manual vehicles if I out it in gear to park it they don't budge unless it's a really steep incline.
Didn't know if this would help diagnose issue
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