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accelerating wildly up and down!! S70 1998

posted by  HD on  Mon Sep 28 09:01 CST 2009
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last visit: Sun Jan 15 12:09 CST 2012
[RELATED]

Did check all vacuum lines and might have had a bad one leading into the intake manifold right on top of the fan. It looked cracked and brittle but I couldn't tell if it was ripped or not but I changed it anyway. Did remove the MAF completely and blew some air through it (gently) to possibly dislodge any debris that might have been stuck in there. Put it all back together and the engine is REALLY smooth now!!

Thanks to both of you for the info.

Henry






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