CLUNK FROM THE FRONT END

[richteex]

Noticed a clunking/vibration noise from the front end when in idle over the past few months and now when i take my foot of the gas when travelling , i hear a clunk. Its not particularly loud but very clear. The noise at idle is very irritating and was hoping someone might have a clue on what it might be. Could it be the engine mounts ??

I had the clutch replaced a few months ago, along with the front discs anf pads if that would throw any light on it.

Cheers

Rich

Peugeot 406 hdi 170000 miles(scary)

[pavlf]

Sorry I can't help you, but I've been hearing a similar clunking from my 2.1td when lifting off the accelerator too .... it's one of those things that I try to ignore but worry that I am doing so at my peril! I'm guessing that it's likely an engine mount and guess further that it'll cost more to fix than I have (nothing!).

paul

[Welly]

Open the bonnet, and with the engine running - blip the throttle with the TPS unit and if the engine lurches forward by any more than 15mm then the rear lower mount is goosed.

I can't say that this will cause your clonk (chances are it will) but it's a sure test for a dodgy mount. Oh and don't leave it alone as it will happily tear through the exhaust downpipe flexi and the intercooler hose in time.

[pavlf]

Cheers for that handy advice. It's something I've been meaning to do for a while really, but by way of an irrational false economy have failed to do so by way of a fear of what I might find! If it *was* to be an engine mount is that looking like a lot of money to fix? Anyhow, thanks again. Hope this is all of some help to the other bloke above too!

[richteex]

Thanks welton. Ive tried the blip thing and there is some movement but i would say it was downwards more than forwards..... as though the engine was tring to roll over (if thats makes any sense). Maybe im seeing something which is normal for a car with 170000 on the clock.

Ive got it booked in to the mechanic after xmas and will only use it a few days until then. FIngers crossed its something else.

[mjb]

Maybe im seeing something which is normal for a car with 170000 on the clock.

You seem to be unaware that 170k isn't a lot for a petrol 406, let alone a diseasel... It is about time for an engine mount to give up the ghost though, and when one goes the others are put under more strain and will likely rip in short order

[richteex]

Thanks........ its been the best car ive ever had and dont want to get rid of. Had a few things go wrong in the last couple of months but generally its been a gem. Did the disks and pads myself with the help from a neighbour /spare time mechanic. Replaced the shocks on the back (very impressed with myself) but didnt solve the problem i had which was a clunk from the rear when going over bumps. Will have another look when I get a chance.

[teamster1975]

a clunk from the rear when going over bumps.

Rear anti-rollbar bushes & top links!

[richteex]

awesome. ill have a look next time im under. Did the front links earlier in the year, the nuts were a bit of a nightmare to get off but not too bad. Imaginechanging these wont be tooooo difficult (He Says !!!!)

[teamster1975]

Actually I changed the drop links and the top links thinking about it. The top links were so worn that I could rock the wheel about!
It's not a bad job, but I did have to drop the rear hub down to get to one of the bolts for some reason I can't remember!

[richteex]

cheers fella. Have you done the antiroll bar bushes?

[teamster1975]

Yes I did, I needed to disconnect the filler hose from the petrol tank and drop it down a little to get enough clearance. That was a pretty straightforward job though

[richteex]

yeah, maybe for someone whoo knows what theyre doing. Ill give it a go though. Thanks for your help dude.

[teamster1975]

I'd never done it before either
If you're practical it should be an ok job