Volvo AWD S70 Forum

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Cold and Groaning S70

The Groaning you speak of I also have with C70 and have not defined it yet however
I have eliminated some things.
Acc Belt Removed same groan, Timing cover remove bearings/water pump seem ok.
Very hard to define location of the noise still investigating.
Thoughts are Oil Pump,Trans or Main or Cam Bearing (least likely)serious problem?

Any other ideas out there?

Thanks!

originaly posted by Rosbif22 on Tue Jan 18 15:30 UTC 2005

Trying to keep this one on top in hopes that some one know what it's all about.
As one of my thoughts above the oil pump my be drawing air due to the heavy
cold oil, I recall an o-ring problem with some older 850's where they would
do something like that.











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    Cold and Groaning S70

    Check your power steering pump for the noise. That's where mine is. It too is gone after a few minutes of driving.

    Klaus
    --
    98 V70Rawd(101Kmi), 95 854T(85K mi), 75 164E(173K mi)








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    Cold and Groaning S70

    If you can isolate the sound as being near the battery, it is likely the air pump, particularly if it goes away once the car warms up.








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      Cold and Groaning S70


      The air pump has a jet like sound, The groaning is directly related to engine
      speed almost more like a rubbing sound when you bump the gas a little gone after
      about 5 min of warm up.







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