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Sudden drop in gas mileage S90-V90

uid 11021's pic
posted by  dewfpo on  Tue Nov 22 09:29 CST 2005
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last visit: Thu Oct 23 18:34 CST 2014
[RELATED]

Mike, excellent description.

I would agree with Poolman and look for vacuum leaks Check every single vacuum hose (especially the pre-molded rubber 90 degree elbows) and that infamous "O" ring that Poolman has found at the intake manifold vacuum tree.

And check the output of that old O2 sensor. They get lazy over time and can really hurt your fuel mileage.

DEWFPO
--
1998 S90 071,245 and 1995 964 154,100






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