Thread: Tensioner rattle- crank pulley?

Try a new serpentine belt first , but have a check of the harmonic balancer and other pulleys including a/c .

When you replaced the tensioner was it a quality part OEM, original or aftermarket? If you remove the belt will the tensioner spring freely and have good spring tension?
I'm with discorevy change the belt first.
Squeak could be the HB on the way out again as discorevy had suggested give it a check.

Try the bearing that the fan bolts onto(behind the pulley). I had the same problem. There is a how to post somewhere on th forum.
Cheers,
Jason

My tiny squeak on shut down, more of a chir-chirp, ended up being a very old belt. I changed the belt and the squeak went.

Belt was changed out when the tensioner was done, but I have a spare. Will throw it on tomorrow.
The tensioner was a OEM from the UK. It has good tension/ springs back.
Jason, are you referring to the bearing in the timing cover? If so, have just sorted that out.
To check to HB, would I undo the 3 bolts on the front and give it a good wiggle to check for movement? As always, appreciate the help.

Update.
Finally got around to changing the belt. Put an old one on that had been covered in coolant and was squealing. Gave it a clean and the rattle has stopped. Noticed it has a different part number -7pk1809. The new one I bought was 7pk1800. So that would probably account for the tension changes.
But I now have the dreaded crank pulley rattle at shut down! Haha.
Thanks for suggestions everyone.

well its 9mm difference in length,,
the tensioner is way up where its never been before,

1809? man thats one short belt,,,

well , its a slim engine and when it hasn't had a big lunch its standard belt (without ace , with a/c is 7pk 1801