knocking in front end
so i have this knocking in the front end. it is louder in 4wd but sometimes noticeable in 2wd with the hubs locked. my best guess is a u joint but i couldnt notice any problems while under the truck. if any one has experienced this and can help let me know:help: oh yeah. it is driveline related not an engine noise
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Just for the hell of it:
Check your body mounts. I had a similar problem, to check rock truck when parked if it creeks or knocks it's your mounts. good luck diagnosing your problem! |
May be the wheel bearings if you can hear it in 4wd and 2wd. I'm assuming by your name it's an 88 Runner? Manual hubs, so the drive-line isn't in motion until you lock in the hubs and/or put the transfer case in 4wd. Sence you can here it in 2wd too, sounds like the bearings IMO. Possibly the ball joints, but I'd do a quick inspection. Jack the front end up and see if there's any play in the wheels.
Edit: Just re-read it and I think I misinterpreted it... Can you here it without the hubs locked and the transfer case in 4wd? If so, you assumption about the U-joints may be right. They often make the most noise just before they go, but can still feel solid. |
so im pretty sure its a u joint. how do i tell which one(transfer side, diff side)
thanks marc |
Replace them all. It's cheap insurance.
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bump
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