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Engine running rough, check engine and trac off lights are on
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alexOH
New User
Sep 8, 2011, 4:23 PM
Post #1 of 3
(2223 views)
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Engine running rough, check engine and trac off lights are on
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I don't know too much about cars, so I apologize ahead of time if anything I say doesn't make much sense.
I have a 2001 Pontiac Sunfire 2.2L with about 145000 miles on it.
My car was shaking pretty bad when i started it, then smoothing out as I drove. The coolant level had also been dropping, although no leak was ever found. My car starting kind of hesitating when accelerating & making a sound almost like a backfire but not quite as loud, and the check engine and trac off lights came on, so i stopped into an autozone to get the code on the check engine light. I'm not sure of the exact code, but it was a misfire in cylinder 4. I was told to replace the spark plugs and wires (which had just been done a few weeks before) and the ignition coil. I replaced the coil and my car ran okay for about 200 miles (still losing coolant, but the shaking and hesitation when accelerating stopped), and now I'm experiencing the same problems as before. My oil light also came on for a couple minutes... I checked the oil and it seems that the level has slightly increased, the oil apperas thinner than usual, and it smells like there is quite a bit of gas mixed in with it. I have no idea where to even begin figuring out what's wrong. Please help?
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alexOH
New User
Sep 8, 2011, 4:36 PM
Post #2 of 3
(2206 views)
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Re: Engine running rough, check engine and trac off lights are on
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I don't know if any of this would have anything to do with it, but these are repairs that have been done recently: New fuel pump and fuel filter, new starter, new serpentine belt, new outer tie rods and new ball joints, engine cradle replaced, new muffler
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Discretesignals
Ultimate Carjunky
/ Moderator
Sep 8, 2011, 5:01 PM
Post #3 of 3
(2198 views)
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Re: Engine running rough, check engine and trac off lights are on
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Trac light will come on if there is a problem with the engine that affects the operation of the traction control system.
You should take it to a shop and have them do a fuel pressure bleed down test to see if you have a leaking injector. They also need to pressure test the coolant system to see where your coolant is going.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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