service engine light in on on 2004 Mercury Mountaineer

The car is shaking badly and acts like it's going to cut off anytime

by in Indianapolis, IN on June 16, 2010
2 answers
ANSWER by on June 16, 2010
sounds like a missfire. have the code checked and find what cylinder is missing. get it checked soon so you do not damage the cat converter. Roy
ANSWER by on August 09, 2011
if you read the manual, it will tell you that the service engine light comes on from bad gas or fuel cap not on tightly, most likely the shaking is from bad gas.
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