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Old 02-09-2011, 01:56 PM
atikovi atikovi is offline
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Join Date: Sep 2003
Location: Suburban Washington DC
Posts: 897
’95 E320 terrible grinding metallic sound under hood.

I noticed a new noise coming from under the hood yesterday but it wasn’t too bad. Drove 80 miles on the highway and it was a little louder when I got back but still not too bad.
Later that day I had to meet a customer 25 miles away and figured it will drive fine.
On the highway you cant hear much but when I got there it was getting loud.
Grinding and popping sounds.
I was thinking a timing chain problem, or maybe the PS pump was going out but the fluid level was fine, possibly the water pump but no leaks or running hot.
I had another 25 miles to go in the dark to get back and figured if it made it this far, it should be fine.
I got home fine but it was real loud by then.
Today after some disassembly, I found the belt tensioner pulley wasn’t attached to anything.
The bearing had all the balls gone.
Don’t think it would have driven much longer.



What other models in the junkyard would have this same tensioner and pulley?
Attached Thumbnails
’95 E320 terrible grinding metallic sound under hood.-standard_srthsrth.jpg  

Last edited by whunter; 02-09-2011 at 02:06 PM. Reason: attached picture
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