Question about 2005 Chevrolet Aveo Sedan

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2005 chevy aveo was overfilled with oil at the last change. It was estimated to be around 1 1/2 to 2 quarts when then the car had a major issue 4 days after the oil change. According to my mom (who was driving) the engine starting making a very loud noise and she pulled over. It was towed. Finding that the timing belt slipped and there was oil leaking in places I've never seen, including spurting out when I took out the dipstick. Which also measured the oil a full inch or more above the max fill mark. The dealership that did the oil change said nothing was done wrong and a little extra oil doesnt hurt anything. It wasn't a little overfilled, but nearly 2 quarts on a car that only takes around 4 quarts to begin with. I want to know what kind of damage this really can do, and if there are any seals or parts that could be busted and cause oil to get on the timing belt in the casing. Not for sure there is oil on it, but this belt went from fine to being stretched out and slipping after the oil change and overfill. Please don't tell me to take back to the dealship, they have already stated they did nothing wrong and since im trying to run a scam on them (????) they won't look at it or fix anything because they did nothing wrong and I have to pay for everything.

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  • Kristeen C Mar 13, 2012

    They do keep insisting the oil and the timing belt issues are unrelated. How do I prove that they are or can be without selling off all my stuff to pay for this diagnostic work? I've had no luck finding anything about it.

  • Owen Barnes Mar 13, 2012

    It's a matter of simple resistance. Any decent mechanic will know that is is not good to overfill and can cause issues.
    If they are still claiming it is not their fault i suggest you discuss it with the manager,a and if they are a franchise dealer go about them to the head office.

  • priscilla quiroga May 14, 2013

    im going thru the same thing its just that my car is shaky and apparently the head mechanic could not see nothing wrong,they are the ones who over filled bu a qt and a half.



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Too much oil can cause the crankshaft or camshaft to drag which can cause the timing belt to slip.
If you are lucky replace the timing belt and start it up. It will run badly and smoke a bit but will clear, hopefully nothing collided when the belt slipped.
The timing belt is something that any competent home mechanic can change, it just takes time.
Sorry to hear about another rip off dealer.

Posted on Mar 11, 2012

Testimonial: "Thanks Owen, I was having a hard time getting a straight answer about what damage there might be without $340 in diagnostic work, but knowing the oil might cause the timing belt problem is exactly what I wanted to know. Thanks again!"


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