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Knocking

posted by  someone claiming to be Danny on  Thu Sep 1 01:31 CST 2005 [RELATED]

I have a 1990 240DL when I start the car when it cold I get a knocking sound from the engine after the car warms up the knocking go away. can anyone help.

Thanks








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Knocking

posted by  Rolyak on  Thu Sep 1 05:55 CST 2005
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last visit: Fri Oct 24 08:03 CST 2014
[RELATED]

AKA piston slap. My 745 has been doing it for 402,000 miles, well I should say 277,000 miles since that's how many miles I've driven it!







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Knocking

posted by  Duck on  Thu Sep 1 02:15 CST 2005
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last visit: Wed Apr 30 21:00 CST 2014
[RELATED]

Danny, I have two of the same year 240's with the same symptoms. Have you had the car for a long time? I'm guessing not,because you would have noticed this some time ago.
This is believe it or not this is "normal", Volvo engineered the pistons to expand in size when the engine warms up, this knocking sound goes away.
This is especially happens when the car has over 75,000 miles.

Cheers, Duck







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