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Randy is on the money V70-XC70

posted by  KlausC on  Tue Jul 6 16:41 CST 2010
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last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

Wow, what a gooooood mechanic. Randy is correct, the O2 sensor message is usually caused by an over-rich condition, which left undiagnosed will eventually coat the O2 sensor and make it worthless.

Check all of your vacuum lines, ie: any line that goes into the intake manifold. Including the airbox hose to the throttle body. If you have a turbo, check the hidden vacuum line on the passenger side behind the PS pump, as well as the 3 lines that go to the turbo.

Fix any leaks, pull all 5 spark plugs and clean them with a wire brush because they will be dirty.

Klaus
--
Why are Volvos so endearing? Its just a car.






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