Buick LeSabre Repair and Maintenance

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

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

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.

One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.

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Stalls all the time and sometimes runs like it has bad gas it always starts right back up, but now 2-3 times a day when I get in and start it , it wont even turn over and dashlights all come on but just bought a new battery

For a long while the engine would just stop (while driving down the road or at park/idle). I could (when driving) pop it in neutral start it and keep going. It has had the crank sensor replaced. Now, when I turn the key, the pass key light flashes rapidly and is accompanied by a relay chatter c...

I had a repair shop replace the crankshaft position sensor,but it still quits running without any notice while driving it! What else could cause this problem?

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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...CERTAIN PASSENGER, MINI VANS, AND SPORT UTILITY VEHICLES HAVE AN AIR BAG INFLATOR ON THE DRIVER'S SIDE THAT COULD FRACTURE AT A WELD DURING A DEPLOYMENT.CERTAIN PASSENGER VEHICLES WERE BUILT WITH MISSING OR UNDER-TORQUED STEERING GEAR ATTACHMENT BOLTS. IF A BOLT IS MISSING, THE DRIVER MAY NOTICE UNEVEN STEERING RESPONSE OR UNUSUAL NOISES DURING TURNS.

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Have a 2005 Buick Lasabre purchased new, oil changeed every 2-3 thousand miles. Last oil change notice the oil pressue would go to zero under hard accelartion. Slamming on the brake did not change, but after a few seconds the oil prussue would return to "normal" which is a stagger 130lb, which as been since new. I was wondering if this is an oil sending unit or a computer, or a oil pump, How do...

when I turn my car off and take out the key , open the door and the warning sound is letting me know my lights are still on. the brake lights and parking lights will not turn off. all other lights go out but not the parking lights or brake lights. does anyone have any suggestions?

when i stop at a stop sign the car takes a second to pick up speed like it is not getting enough gas. after i press the gas for a few seconds it picks up speed and ride good. wha is the problem?

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