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Missfire codes and loud Valves(?) 850 1997

posted by  KlausC on  Mon Oct 12 11:31 CST 2009
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last visit: Fri Oct 24 10:15 CST 2014
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That's too many misfires. It could be fouled plugs, or a dirty rotor cap. OR, it could very well be your valves are sticky. These 5 cylinder engines need to get their rpm over 3K once in a while, just to spin the valves in their seats. Failure to do so allows carbon to build up and create future problems, like sticky valves and loss of compression.

So, run the engine for a while! Put the selector in L and drive around the town at 30-35 mph for 20 minutes. Besides being fun to do, it will clean up the combustion chambers and heat up the oil so the contaminates burn off. BTW, leave the radio off you can hear the engine.

These 'short' trips are death. Walking 1 mile is better for you and the car.

Klaus
--
Proud owner of a 1967 220S. If I had more room, I would have more Volvos.






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New Missfire codes and loud Valves(?) [850][1997]
posted by  N.J.P.  on Mon Oct 12 07:01 CST 2009 >


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