Pontiac sunfire 2000 shake when driven certain speed
25

Asked by simonmick Jan 15, 2008 at 02:08 PM about the 2000 Pontiac Sunfire

Question type: Maintenance & Repair

This car has an issue that I cant sort out. We have new tires, which we had ballances 3 times, had a front end allignment, and we even went as far as to borrow our neighbors wheels to do a test. When you reach the speed of 95 to 105 kmh then the car shakes bad. The passenger seat literally vibrates. We ruled out warped brake rotors by expanding the calipers and testing it, and I think we ruled out transmission by driving up to 120kmh then putting it in nutral and letting it coast into that speed range...it still shakes bad...bellow 95 and above 105 is perfect. I have spent $300 on testing this thing so far..please help me...

4 Answers

papa answered 16 years ago

you could have a badeheel bearing or axle bearing also check cv joints.

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simonmick answered 16 years ago

Wouldnt the CV be noticed only when you corner? This does this on straight stretch then it feels like the car wants to skate all over the road..I will check them though...

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papa answered 16 years ago

yes if they are bad enought,also check to see if a axle is bent.also check rear end of car shock mounts bushings exct.

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simonmick answered 16 years ago

Still no better. Had the car on the high speed ballancer...took some front end shake out, but still shudders when the car reaches 95 to 105 kmh. I think I will have to live with the shake...CV was good, no prob with wheel bearings...etc..

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