Buick Repair and Maintenance

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

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Buick Problems

Transmission Fault and/or Check Engine Light With Code P0716, P0776, P0717, P0777, P2714, P2715, and/or P02723

Vehicles with a 6speed automatic transmission may develop one or more of the following faults related to a broken 35R clutch wave plate inside the transmission: Illumination of the Check Engine Light with code P0716, P0776, P0717, P0777, P2714, P2715, and/or P02723, loss of reverse gear, slipping or harsh 3rd or 5th gear shift. Removal and dis-assembly of the transmission will be required to replace the broken 35R wave plate. It is also extremely important that all debris from the failed part be cleaned from the transmission while it is disassembled in order to try and prevent future problems.

Engine Vacuum Leak From EGR Tube

The EGR tube may develop an engine vacuum leak causing the engine to run lean. The Check Engine Light may or may not illuminate.

Erratic Fuel Gauge Operation

The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.

On certain 2005 - 2007 vehicles, General Motors has provided a special service policy covering the fuel level sensor, agreeing to pay 50% of the repair cost. This coverage extends for 10 years or 120,000 miles from the original "in service" date of the vehicle. Please contact your local GM dealer for more information.

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Buick Questions

have a hot air turbo in car hard to start when cold ?? (2 answers)

hard to start when cold ok when car warms up

Can I use a temperature switch from a regular Buick park avenue on my car (1 answer)

I have a Buick park avenue ultra super charged motor

How do I get my dashboard to function properly again? (2 answers)

I bought this vehicle (used)in February from a dealership.96,000 miles on car. It wasn't really any major problems with car. I've had an oil changed,front end aliment,changed spark plugs and wires. Im June i noticed my car act like it didn't want to turn over on the first try.Later I ...

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Buick Recalls

Software Defect May Prevent Airbags From Deploying

If the airbag system is in a diagnostic test mode during a crash, the deployment of the frontal airbags and seat belt pretensioners will not occur. Dealers will reflash the system software. In the event the vehicle has had a previous airbag deployment, the airbag sensing and diagnostic module (SDM) will be replaced free of charge. 

Fuel Line Under Hood Chafes On Engine And Leaks

A fuel line in the engine compartment could contact the engine and chafe, eventually causing a fuel leak. Dealers will replace the fuel line assembly free of charge to resolve the concern.

Power Seat Wiring Chafes On Seat Frame

The wiring harness to the 8-way power adjustable front seats may chafe on the seat frames, resulting in a short circuit and fire hazard. Dealers will inspect and secure the wiring harness and repair any chafed wires free of charge to resolve the concern.

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Buick Reviews

Original owners of our 06 CXL. In 9 years we've replaced alternator-battery-water pump-thermostat-normal oil changes-tail light bulb and third set of tires with 118K miles. Just replaced wheel hubs (preventive), rotors and brakes then drove 2500 miles round trip to Florida with the odometer starting at 115K. Only vehicle problem that occurred on the trip was a anti-sway bar link broke due to th...
MY 1995 buick lesabre has been sitting for 7 years. does anyone know what I should replace other than belts and hoses? would be greatly appreciated. amberjane1573411@gmail.com
I purchased my 2005 Buick Le Sabre Custom with 22873 miles. She is like new and has been kept in the garage since new. The previous owner just turned 90 and now lives in an assisted living facility. I replaced both Low Beams lamps with new ones since one was burnt out. I've read that you should replace both bulbs for the same brightness. I am having the transmission flushed and replaced wi...

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