Tranny clunk selecting reverse
Had my 98 D1 for 2 years and I suppose it's always done it but I am running out of things to fix now haha, yeah right...
When I select reverse there is a fairly heavy clunk and the truck gives a little lurch. Revs at idle are at 750rpm. Can I adjust this out somehow? Thanks |
Leave the idle alone. When was the last time you inspected and greased both drive shafts u-joints? Does your rear shaft have the rubber roto-flex ring, if so are there cracks between the 6 bolts?
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I wasn't meaning can I adjust the idle, I was meaning is there an adjustment for the tranny?
I thought of the rotoflex but I changed that in another vehicle with the same problem and it didn't make the slightest bit of difference. |
Update, I shoulda checked this first but IMHO the oil level is too high. Tranny fluid was replaced about 10k miles ago and I just checked it according to RAVE procedure, cold fluid, engine running in neutral and it is about 1-1.5" above the max mark. Could this be the cause?
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Not good to have it that high but I doubt it is causing the problem.
So back to my original reply, answer my questions regarding your u-joints, service on them and go visually inspect this rotoflex, I am not interested in what happened on another vehicle but this one. |
Some clunking in the driveline is normal especially in the mornings. Be sure to check your ujoints though.
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I just noticed that it doesn't do it from cold just when it been run for a bit.
Also it "feels" more like the clunk is coming from directly under the gearshift rather than the rear diff. I'll check the U joints for a nipple but I don't know if they have them on the 98. They would be greased by the shop when the oil change is done right? I'll look for the Rotoflex and report back. |
Mine does the exact same thing.
Only when hot never when cold. Drain out some of your trans fluid level and let us know what happens. |
Spike, I would like to get the fluid level correct to begin with so my question is can I just loosen the drain plug and let it trickle out or will nothing come out until the plug is all the way out?
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Yes you should be able to just loosen it and let it dribble.
It might go slow so bring a drink with you. If you remove the plug completely it will drain out faster than you want and she will be empty before you can get the plug back in. |
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