1999 Buick LeSabre Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 Buick LeSabre

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1999 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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1999 Buick LeSabre Questions

Air conditioner not working (1 answer)

My air conditioner is not working an hot are is coming out of bottom vents, I know you can buy a product to put in new free on but have no idea where to put it is in the engine, can you help me , I don't want to pay $80 to have a mechanic

when turning right there is a clicking sound. left front wheel bearing replaced. (2 answers)

still making sound.. one person is saying joint in axel or sounds like noise in trans??

Thanks for solving the problem I was having with my cooling fans. They both started running when I put refrigerate in it. (1 answer)

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1999 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...
Recall 99V089000
VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH 4T65E AUTOMATIC TRANSMISSIONS. THESE VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FMVSS NO. 102, "TRANSMISSION SHIFT LEVER SEQUENCE." A RETAINING CLIP, WHICH SECURES THE MANUAL VALVE TO THE LINKAGE OF THE TRANSMISSION DETENT LEVER, CAN B...

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1999 Buick LeSabre Reviews

This has been a great car. Bought it in 2001. No major problems other than rotine maintenance. Just had it checked at my garage. Paid $69 for used car safety check to make sure everything was OK. I needed a serpentine belt replaced ($260) and that was it. Looks like I'll be driving this car for awhile longer.
good car

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