1995 Buick Lesabre

1995 BUICK LESABRE
10,000 MILES • 4 CYL • AWD • AUTOMATIC
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EJ36
  • MEMBER
  • 1 POST
when stopped and while driving my car idles up and down,and shakes as if sometimes the car is going to cut off.it also makes a rattiling noise when im stopped,also radiator light has been coming on but car does not run hot what could this be.
Dec 11, 2008 at 8:38 AM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi:
the idle problem sounds like a throttle position sensor problem. However, don't replace it until we are sure. Have the computer scanned at a nationally recognized parts store. They will let you know if there are any codes, and most will do it for free.

As far as the rattle, check the shield around the cat converter. Make sure it's not loose. If it is, use hose clamps (tied together) wrapped around the shield to draw it tight.

The coolant light may be coming on due to a very low idle, or a bad temp sending unit. Pay attention to it to see if it only comes on at a low idle.

Let me know what you find.


Joe
Dec 24, 2008 at 7:39 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.