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Old 06-30-2015, 07:52 PM   #3
Ronald GG
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Join Date: Jun 2015
Location: Williams lake
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Re: 04 optra engine rattle

My 04 does the same thing. I believe it to be the lifters draining oil, not totally sure. I've heard adding a little ATF in the oil and running it for short trip will clean lifters etc. Then change the oil. I am going to try it myself just before my next oil change.
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