Play in the drive train ?
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Play in the drive train ?
I hope I can explain this well enough, here goes:
When I start from a dead stop there seems to be a feeling like the truck is "picking up slack" in the drive train. I haven't had this truck too long, so I don't know if it has done it all along. It doesn't make any noise or anything and shifts smoothly and there isn't any feel like a U-joint. There just seems to be some play.
It is an '02 F250 PSD CC SB 4X4.
Thanks
Frank
When I start from a dead stop there seems to be a feeling like the truck is "picking up slack" in the drive train. I haven't had this truck too long, so I don't know if it has done it all along. It doesn't make any noise or anything and shifts smoothly and there isn't any feel like a U-joint. There just seems to be some play.
It is an '02 F250 PSD CC SB 4X4.
Thanks
Frank
Last edited by missouguy; Apr 12, 2005 at 04:00 AM.
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Your problem is probably caused by the splines that allow the driveshaft to lengthen or shorten. When they do not have enough grease on them they start to do what you are explaining. I lubed mine a while back, but I think it might be time to do it again. It's too bad there is not a grease zerk to the splines. You have to take the driveshaft apart and lube by hand.
Post Fiend
Joined: Jun 2003
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From: NE Texas
Originally Posted by mizzitch
Your problem is probably caused by the splines that allow the driveshaft to lengthen or shorten. When they do not have enough grease on them they start to do what you are explaining. I lubed mine a while back, but I think it might be time to do it again. It's too bad there is not a grease zerk to the splines. You have to take the driveshaft apart and lube by hand.
Why did Ford do this? To eliminate the need for grease. Funny, ain't it?
Laughing Gas
Joined: Jan 2004
Posts: 1,142
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From: Denver, CO
I have been wondering what that clunk is under my truck for a long time. Damn I shoulda asked. Hope nothing is wore out now, been clunking for like a year.
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Post Fiend
Joined: Jun 2003
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From: NE Texas
Originally Posted by MadMedic20
I have been wondering what that clunk is under my truck for a long time. Damn I shoulda asked. Hope nothing is wore out now, been clunking for like a year.
I have heard '99 models clunking for years. I even suggest that they lube the yoke, but they just shrug and don that mule-eating-saw-briars grin. If it will last through their ignorance, it should be fine. Just don't let it go too long.
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Originally Posted by glafond
missouguy, i only mentioned the turbo lag, because you stated there
was no noise, and all was smooth. is this a delay after the engine rev's come up, or when you first hit the pedal?
was no noise, and all was smooth. is this a delay after the engine rev's come up, or when you first hit the pedal?
Frank
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From: USA
All of the above is correct. Also don't forget this is a situation that you need to measure all the play in the driveline.Starting in the tranny,u-joints,slip joint in the drive shaft,the axle splines into the spyder gears and the backlash in the rear diff.As things wear over mileage the little delay will increase.
Also don't forget slippage inside the tranny.
Just a few comments on this rather old subject!
Rich
Also don't forget slippage inside the tranny.
Just a few comments on this rather old subject!
Rich
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From: MI
Originally Posted by missouguy
Well, I crawled under the truck and tried to move the driveshaft checking for looseness, it didn't budge. Tight as a drum. What now?
Thanks
Frank
Thanks
Frank
having a brain fart, does the '02s use an electronic trottle? it does continuous self checks.(compares multiple potentiometers). there might be just be a small gap in the travel of the throttle in relation of the pots.
Post Fiend
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From: NE Texas
Originally Posted by missouguy
Well, I crawled under the truck and tried to move the driveshaft checking for looseness, it didn't budge. Tight as a drum. What now?
Thanks
Frank
Thanks
Frank
Those of us familiar with that noise would know right off, but unfortunately we're not in that position. So, the best we can do is tell you to remove the shaft and grease the splines. If it goes away - that fixed it; if not look elsewhere.
Sorry, but that's about it. If you want to drive to New Boston, Texas, then I could hear it and give you a better idea...maybe.