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Diesel Engines A forum dedicated to diesel engines fitted to Volvo cars. See the first post in this forum for a list of the diesel engines. |
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Aux belt tensioner or vac pump.Views : 786 Replies : 1Users Viewing This Thread : |
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Jan 12th, 2012, 22:16 | #1 |
Just one more thing...
Last Online: Jul 10th, 2020 14:44
Join Date: Dec 2008
Location: North Wales
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Aux belt tensioner or vac pump.
My 850 TDI has just started making an awful noise in the mornings and at idle speed.
The easier way to describe it is like the vaccum pump tap tap tap noise, but much much louder. The tap tap tap increased with engine speed till around 1500rpm then it silences. You drop the pedal and as the revs drop back down to idle, the sound re-appears. It sounds like it is coming from the aux belt tensioner area, also sounds like its coming from within the timing belt casing which is not good. What kind of sound do these tensioners make when their failing ?????
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'98 V40 2.0T B4204T - died... '96 855 2.5 TDI D5252T - 255,000 miles "Diesel without turbo is like a woman without boobs... sure you can drive it, but there's always something missing." |
Jan 20th, 2012, 19:43 | #2 |
Just one more thing...
Last Online: Jul 10th, 2020 14:44
Join Date: Dec 2008
Location: North Wales
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Loose cambelt clattering against the cover. See other thread.
Case closed.
__________________
'98 V40 2.0T B4204T - died... '96 855 2.5 TDI D5252T - 255,000 miles "Diesel without turbo is like a woman without boobs... sure you can drive it, but there's always something missing." |
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