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-   -   Clunk in driveline when I hit the accelerator while coasting (https://landroverforums.com/forum/discovery-ii-18/clunk-driveline-when-i-hit-accelerator-while-coasting-67441/)

ImQuattro 06-04-2014 10:03 PM

Clunk in driveline when I hit the accelerator while coasting
 
I was coasting down the hill into our town and noticed that when I started to a accelarate (just touched the gas to keep momentum) I would elicit a clang/thump in the driveline.

Front driveshaft was completely rebuilt >500miles ago, rear is tight and both are greased. The rubber coupler at the rear diff is also near perfect.

Is this normal? Reminds me of a similar noise my old bosses Chevy K1500 made and the TSB fix was some special GM grease on the trans output->driveshaft splines. Not the same setup the LR has.

Thoughts?

Lowest Bidder 06-05-2014 06:56 AM

A muffled clunk that seems to be coming from the rear is normal, and you will find a few threads about this. It's the sum of all the backlash in the drive line, and it's more proeminent when coasting at a certain speed then reaccelerating after a traffic light has turned green. Of course I am not talking about a clunk of epic proportion, or very metallic in sound, you are the judge of that.

Dane! 06-07-2014 02:42 AM

My tcase clunks occasionally... lol. Your probably hearing what ^ said, its common in AWD cars/trucks.

RoverMasterTech 06-07-2014 10:25 AM


Originally Posted by Dane! (Post 467268)
My tcase clunks occasionally... lol. Your probably hearing what ^ said, its common in AWD cars/trucks.

Except Audi, Mercedes, BMW, Subaru, Ford, Chevy, Dodge, Actually Discos are the only car I can think of that clunk when you step on the gas. (they all do it, don't worry)

Dane! 06-07-2014 02:23 PM

Meh, the Subaru's I've been in all clunked, much quieter than the disco, but clunked nonetheless.

jfall 06-08-2014 03:29 AM

Normal.
do not HIT the accelerator.
Bad for MPG.
Bad for Driveline.

Drive it - like there is an egg on the gas pedal.
You'll not hear any clunks.

Drive it full throttle or no throttle and you'll get "interesting problems" later.

coors 06-08-2014 12:20 PM

Check your Engine & Trans mounts. They're a common failure point in the drive line.

I recently replaced all mine and have damn near eliminated all "thumps" under acceleration and deceleration.


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