2.8 Crd Auxiliary Belt Noise

[bigdave]

I have a 2006 grand voyager with a 2.8 crd engine

I have diagnosed a very loud noise at idle to the auxiliary belt,

With the inner arch cover removed I can clearly see the problem is the belt flapping about like crazy

Its even slapping the engine.  I have replaced the belt and the tensioner which instantly solved the problem, however around 100 miles later the noise has returned.

The tensioner can be seen moving about quite a lot more than I would have expected

Has anybody had the same issue and solved it

 

Thanks in advance for any advice

[mikebh8]

I had it on a different car, try removing the belt and check for the tensioner if it is loose, in that case the third is gone on the timing cover where the bolts goes in. Try with some thread blocker.

 

Hope it helps.

[karmannski]

Check the alternator pulley too

[gordy]

Check the Alternator itself, as mine had the problem and I have heard a few others. Alternator seems to work ok but when bearings become dry it makes this odd high pitched noise when idling..

[Stealth1hunter]

If you rev the engine does the noise go an come back when you De accelerate if so i can 100% guarantee that it is the decoupledr pulley on the alternator. You can buy these on line.. I changed the tensioner first DIDNT NEED IT THOUGH... that seemed to work but not for long a week maybe....DECOUPLER PULLEY also called a clutch pulleyhttps://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F263281585361 Edited May 26, 2018 by Stealth1hunter

[jonboy766]

Would the decoupling pulleybcoause me to get random flat battery's every now and again ? 

[bignev]

nope