Volvo RWD 444-544 Forum

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Rich condition possible culprit 444-544

Howdy gang,

As some of you may recall, I've had a rich condition plaguing my poor little 63 PV for several months. I have a very slight vacuum leak around the throttle bushings which will have fixed soon....but that would tend to make it run lean anyway....but I had another thought to run past the experts in this forum.

The car sat for several years before I got my hands on it. I'm wondering if a semi-clogged muffler or silencer might be wreaking havoc with combustion?

Or am I grasping at straws?






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New Rich condition possible culprit [444-544]
posted by  phonemanjames subscriber  on Mon Apr 21 16:23 CST 2014 >


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