Question about 1994 Buick LeSabre

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My Sister's 1994 Buick LeSabre revs up upon start and wants to speed up even when the accelerator isn't pressed. This happens at random times.

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I had the same problem on my 1994 Buick Regal Custom, I replaced the mass air flow sensor. Now i have no problems.

Posted on Aug 04, 2009

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Look For A Vacuum Leak ,Or Check Idle Control Solinoid

Posted on Aug 01, 2009

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Posted on Jan 02, 2017

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94 Lesabra is breaking up when I accelerate. Mostly at higher speeds.Doesn't stall, but it fells like it is starting to.


This symptom could be several things...how long since a tune up of spark plugs, and spark plug wires? Also the control module can be breaking down under load (acceleration) How does your Buick idle? Have you tried fuel injector cleaner? These items are usually maintenance things...not to expensive...

Nov 24, 2010 | 1994 Buick LeSabre

1 Answer

Buick Lesabre Rough Idling, acceleration issues, wont start.


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

Apr 27, 2017 | 1998 Buick LeSabre

1 Answer

I have a 97 buick lesabre with 3.8, at about 45-55mph it will stumble or hesitate when attempting to accelerate. Once it down shift and the revs get up it smooths out and pulls well


Replace plugs and wires at the same time to fix. It goes to lock up mode in the transmission at that speed and this is when you most notice a slight skip or miss.

Mar 29, 2010 | 1997 Buick LeSabre

1 Answer

Replace fuel filter


Have you tried to start it when it got cold?

Mar 19, 2010 | 1995 Buick LeSabre

1 Answer

1994 lesabre, hi speed a/c motor runs all the


You need to replace the blower control module. It's about six inches from the blower motor on top of the heater case on the passenger sid of the blower motor.

Sep 08, 2009 | Buick LeSabre Cars & Trucks

1 Answer

Smoke, bad smell and slow acceleration on left front wheel


is the abs light on ? if so go down to autozone and have them scan the codes it's free

Feb 24, 2009 | 1994 Buick LeSabre

2 Answers

Random problem unable to solve...


could be alot things if it didnt pull a code might be ur torque convertor , dirty or faultyinjectors crank position sensor

Jun 16, 2008 | 1997 Buick LeSabre

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