1998 LEXUS GS 300 CAR PROBLEMS

  • Tiny
  • Charron
  • 1998 LEXUS GS 300

1998 Lexus GS 300 Automatic 2000 miles

hello my lexus is shaking real bad when it sits for hours then I go to crank it it shakes or about ten min like a rollercoaster then when time to drive it it s=cuts o and then I i go 50to 60 miles and hour it makes a knocking ound like thump thump real loud and the speed drops and I have to put my feet all the way down to the gas pedal to pick up speed. I have been told and bought so many things and it is still doing the same thing fuel ilter was put on, sparkplugs, throttle position sensor now I was tod the cadallac converter and the timing is off. I really dont know please can u answer this question so people can stop guessing thank u

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Friday, March 19th, 2010 AT 7:35 AM

3 Replies

  • Tiny
  • Dave H
  • EXPERT
  • 13,536 POSTS

Have the catalytic convertor checked for blockages

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Sunday, March 21st, 2010 AT 8:34 AM
  • Tiny
  • Charron
  • MEMBER

I had the catalytic converter check and it was block but iam still having that shaking on the car when I crank up throughout the day some people say it might be a motor mount I really dont know this time what could it be please help again. Thank u

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Saturday, April 3rd, 2010 AT 1:00 AM
  • Tiny
  • Dave H
  • EXPERT
  • 13,536 POSTS

Have the motor/transmission mounts checked/replaced

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Sunday, April 4th, 2010 AT 5:11 AM

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