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1995 Saturn SL1 poor acceleration and shaking

Tiny
PAVLOVIC
  • MEMBER
  • 1995 SATURN SL1
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 258,000 MILES
My car sometimes shakes/vibrates real bad at around 60 mph on freeway, not all the time, when I let off gas and slow down the shaking quits. This has happened 3 or 4 times in the past 2 weeks. I checked air in tires and inflated all to same psi and still have the problem.

2nd problem-i recently filled oil and gas and right after that I now have bad acceleration and it smells like a bad muffler (but I have a new muffler). I did put too much oil by accident, I had the accelerator to the floor and it would not go over 50 mph going to work next day, but coming home it went up to 60 but does not accelerate like it did before I put the oil and gas. Also it is very loud now, it was loud before but it is louder now. Loud like it needs a muffler but it does not.
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Wednesday, October 20th, 2010 AT 8:09 AM

1 Reply

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
For the shaking I would have the wheel balance checked. How much over full did you over fill the oil?Also what did you do to correct the over filled oil and how quickly did you correct it?You said it's loud so it's loud like a exhaust leak?If so your going to have to listen and look for a exhaust leak. Do you have any code's?
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Wednesday, October 20th, 2010 AT 10:14 AM

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