Question about 2002 Oldsmobile Alero

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Alright, so my sister came over and when she was leaving she started her 2002 olds alero and i heard a ticking sound. It sounded like more than one lifter was ticking. Is this a sign that the oil pump is going out? I had her turn the car off after like four seconds. Checked the oil, it was full engine sludge shouldn't be a problem. She started it up a minute later and it didn't tick... What the HELL?

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  • carson13 Apr 23, 2009

    Thanks...

  • mike loshbough
    mike loshbough May 11, 2010

    change the oil sludge shouldn't be the problem?

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  • Oldsmobile Master
  • 3,854 Answers

That tricking noise is common on the 3.4 gm engine's. It's called piston slap, you get it most of the time on first start or when you turn the car off and it just cooled enough for the pistons contract again.
There is nothing we can do about it, with the newer engines being built with higher tolerance you get annoying  noise. 
Best thing to do is to do oil and filter changes every 3000 miles, and warming up the car about 3 min before driving off. 
The way you engine was made, you don't have to wait since there is tolerance for expansion but your going to wear out the cylinder quicker. 
I find that adding Lucas Oil treatment with every oil change has eliminated the piston slap from my wife's Montana. Good luck and hope this helps. 

Posted on Apr 22, 2009

  • Harvey N Tawatao
    Harvey N Tawatao Apr 23, 2009

    Oil sludge is a big problem, sludge blocks up the oil journal and starves the vital engine componets of oil like the Crackshaft Bearing and lifter's. If there is not enough oil flow you could burn out a bearing and that would cast a new motor. 


    Try adding Marvil Mystery Oil which i believe Auto Zone sells to your engine oil about 300 miles or say a week before you get the oil changed. That your help clean out the oil journals before your go for an oil change. Try doing that for the next 4 oil changes and then ever second one after that. 


    That would keep the internal parts in the engine clean and free of carbon and sludge. Don't forget to *** Lucas engine oil treatment every time you change the oil. 


    Good luck and hope this helps.

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