C220 "growling/diesel" sound at ~1000-1200rpm
03-28-2014, 12:41 PM
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1996 MB C220
C220 "growling/diesel" sound at ~1000-1200rpm
Hey all:
Got another potential issue with my 96 C220... in addition to my blown head gasket (working on a temporary fix this weekend until I can replace it or sell the car), I have just noticed a deep growling sound between 1000-1200rpm (thereabouts - I'm under the hood moving the throttle, not looking at the tach). It occasionally (randomly) makes the sound at idle - AC on or off doesn't matter - but it consistently does it every time you give it throttle. Just does it right off idle; once above that, it goes away. Is my timing chain about to go, too? Any other thoughts? I love the car, but its quickly proving that "there's no such thing as a cheap Mercedes." :-(
EDIT: After having my wife come out to listen in too, I had her watch the tach and we found it was happening primarily at ~1500rpm (if that makes any difference).
Got another potential issue with my 96 C220... in addition to my blown head gasket (working on a temporary fix this weekend until I can replace it or sell the car), I have just noticed a deep growling sound between 1000-1200rpm (thereabouts - I'm under the hood moving the throttle, not looking at the tach). It occasionally (randomly) makes the sound at idle - AC on or off doesn't matter - but it consistently does it every time you give it throttle. Just does it right off idle; once above that, it goes away. Is my timing chain about to go, too? Any other thoughts? I love the car, but its quickly proving that "there's no such thing as a cheap Mercedes." :-(
EDIT: After having my wife come out to listen in too, I had her watch the tach and we found it was happening primarily at ~1500rpm (if that makes any difference).
Last edited by js81; 03-29-2014 at 11:00 PM.
04-01-2014, 12:58 PM
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1996 MB C220
Any ideas? If it matters any, I've noticed that the bearing/pulley in my alternator is starting to make some noise. Could the two sounds be related? It only does it at ~1500rpm and occasionally on idle...
For what its worth, though, my temporary head gasket fix is working like a charm - I used Bar's Leaks Professional Head Gasket Repair; so far, so good. :-)
For what its worth, though, my temporary head gasket fix is working like a charm - I used Bar's Leaks Professional Head Gasket Repair; so far, so good. :-)
