[v8bobber]

Hi all,

I am experiencing a loud "click" from somewhere underneath the P38 when reversing the vehicle.

It never does it when going forward and only does it once when say reversing out of the drive in the morning and then doesn't do it again, except for today when reversing my trailer.

Appears to be coming from the back axle somewhere. Anyone experienced this or have any ideas what it might be?

Am taking the caravan away next week and don't want a diff or something to fail on the way

Regards

Dave

 

[nickm347]

I have the same thing. I think it may be U-joint related, but havent checked it out yet.

 

[TheBoss]

Clunk? or Click?

When you go from Drive to Reverse and back again will it do it both times? If so, U-joint.

 

[v8bobber]

Yep,

Definately a loud click. Almost like the sound of flicking a heavy duty switch - if you know what I mean?

You sound fairly confident that its a propshaft UJ then?

Dave

 

[JeremyD]

I had that on my car untill about last week when i changed the brake pads, could just be as simple as that when was the last time you serviced the brakes and greased the alining pins on the caliper?

 

[v8bobber]

Well funny you should mention it but I did the brakes about 500 miles ago. New discs and pads at the back.

Perhaps something is "sticky" in there. Not sure what you refer to when you talk about greasing?

Dave

 

[TheBoss]

You can check it yourself, crawl under the truck and move the prop shaft around, see if there is slack/play at the U-Joint. If so, it needs to be replaced.

If your brakes are grabbing and then "clicking" when shifting direction, then, you need to grease the pins on the calipers so they can slide freely.

 

[SpiggyTopes]

I had similar:

* Rear brake pins worn - replaced and perfect
* Rear prop shaft splines dry - lubricated and now ok
* Still a slight click when pulling away - maybe the worn hub splines?


HTH

 

[diff]

Ours clicked while backing up but it turned out to be the tie rod end popping up & down. Only did it while steering wheel was turned while going backward. Sounds silly but it is another possibility.

 

[JeremyD]

Not sure what you refer to when you talk about greasing?

Sorry didnt know the correct terminology but after looking at Rave they are called the guide pins on the brake pad carrier page number 806 of 1361, one of mine had seized up and I had to replace the whole carrier

 

[p38arover]

Clunk? or Click?

When you go from Drive to Reverse and back again will it do it both times? If so, U-joint.

Depending upon VIN, it could be one of the rear axles clicking in the hub splines,

Look up the TSBs on RAVE. You may have to apply Loctite to the splines.

 

[Col]

Look up the TSBs on RAVE. You may have to apply Loctite to the splines

viewtopic.php?f=3&t=25440

Cheers

 

[v8bobber]

Hi all,

Thanks for all the replies, doesnt look too terminal then?

There is a slight amount of play in the joints on the rear prop so I might change those as a matter of course as i'll be towing this monster of a caravan around that i've just bought!

I've changed all the front ball joints recently so it's unlikely to be them. My money is on the back brakes as they've recently been replaced. Got to be honest, have never heard of having to grease the pins before but i guess it makes sense. I'll whip everything off when I get a minute and cast my eye over it.

Interesting to read the bulletin about the loctite. I might try the hub nuts before i commit to that as I seem to remember reading that it was nearly impossible to get the nut off...........we'll see.

I'm sure by then there'll be another problem to worry about anyway!

Regards,

Dave