1998 Buick LeSabre Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1998 Buick LeSabre

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1998 Buick LeSabre Problems

Engine Won't Turn Over Due to Coolant Leak From Upper Intake Manifold

The upper intake manifold may develop an internal coolant leak causing one or more cylinders to fill with coolant. This can cause the engine to "hydro-lock" and not turn over. Removing the spark plugs will allow the engine to turn over pushing the coolant out of the spark plug holes. Replacing the upper intake plenum and gasket is commonly required to correct this condition.

The engine can be very difficult to start after this problem has been repaired, it can be helpful to clear as much of the coolant from the intake manifold and cylinders as possible before reassembling the intake manifold.

Engine Stalling Due to Mass Air Flow/Crankshaft Position Sensor Failure

The mass air flow or crankshaft position sensor may fail causing the engine to stall intermittently. Proper diagnoses will be necessary to determine the cause of any stalling condition.

Check Engine Light Due to Gas Cap Issue

Illumination of the Check Engine Light may be the result of a loose or worn gas cap.

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1998 Buick LeSabre Recalls

Recall 04V090000
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 3800 V6 (L36) ENGINES AND CERTAIN DELPHI FUEL PRESSURE REGULATORS, THE REGULATORS HAVE A MUCH HIGHER THAN USUAL RATE OF FUEL LEAKS. A LEAK CAN ALLOW FUEL TO ENTER THE INTAKE MANIFOLD THROUGH A VACUUM LINE. IF THE ENGINE DOES NOT START WHEN CRANKED, T...

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1998 Buick LeSabre Reviews

First fuel pump went then camshaft went at 145,000 loved the car but it fell apart when it hit 145,000 was taken very well cared for but didn't last. Buying a japanese car now they last longer
Ive had my buick for2years and i love it the only thing went wrong with mine is my transmission bolts fell out and had to fix air comming out of the egine BUT OTHER THAN THAT.1 HAD MY BUICK AT 94000 MILES and now its at 137000 miles and runs like a champ dontnoone got a better egine then 38 series buick i think its the best egine in the world. i love my buick
1998 Buick Lesabre Custom - Piece of GARBAGE!!! Had to replace engine at 50,000 miles. Buick had to have their own Head Gasket!! Why? I have 1998 Chevy Lumina, 128,000 miles, starts right, up barely cranks over. The Buick, THEY HAD TO DESIGN THEIR OWN FUEL INJECTORS!! Couldn't use proven fuel injectors used in other 3.8L engines! Front sway bar snapped. Why? Both rocker panels are rusting out b...

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