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What to do about check engine light that won't stay off?

(2000 Saturn LS1)
in Sacramento, CA on June 18, 2010
My check engine light is flashing, I had a tune up and it went off for about 1 week, I had the catalytic converter replaced and it was off for about an hour. It is vibrating so bad it feels as if the engine is about to fall out.
Displaying 1 answers & 0 comments
Popular Answer
on June 18, 2010
get a shop to do a build up of the motor to see why it is missing.

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