Question about 1998 Buick LeSabre

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Buick Lesabre Rough Idling, acceleration issues, wont start.

1998 Buick lesabre loses acceleration power when stopping then going. Acceleration then kicks in. Engine Light says bank 1 too lean. Recently, started up the car, idled really rough (exhaust was rumbling) and then it just shut off. This has happened before, and coolant was leaking into the intake. Had to get intake replaced, new oil, new spark plugs. When I got it towed to garage after it stopped running, Garage said it was starting right up when they started it. They probably think I am crazy because I keep bringing it there and it seems to start up ok every time!

Posted by skessle1 on


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Tom Chichester

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Take your Buick to a shop where they can actually identify the head gasket leak.

Posted on Apr 27, 2017


5 Related Answers


paul erickson

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SOURCE: rough idle

fuel filters rarley cause idle problems. i would look at the egr valve or possible vaccume leaks.

Posted on Aug 24, 2008


SOURCE: P0171 Code (Lean Fuel Bank 1) Engine light on

you nead to check all you vacuum lines for leaks it sounds like you have a vacuum leak or the o2 sensor is going bad on bank 1 **** i still say vacuum leak

Posted on Nov 23, 2008


  • 11 Answers

SOURCE: rough idle engine shakes

possible IAC (idel air control valve) takes about 30min to change out

Posted on Mar 30, 2009


  • 2 Answers

SOURCE: What is the towing Capacity?

The standard AND maximum towing capacity on the Custom and the Limited are both the same, rated at 1000lbs.

Posted on Apr 27, 2009


  • 36 Answers

SOURCE: tightening sequence diagram for a 97 buick lesabre

Bellow is an "example" of the tightening sequence for an intake manifold. The sequence is usually the same for most vehicles, but you should refer to a Haynes/Chilton manual for your specific make and model of vehicle to verify tightening sequence and torque specs. Please rate/vote this reply if you found this information helpful.


Posted on Jun 01, 2009

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