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Buick LeSabre

This category covers questions about the Buick LeSabre, a full-sized entry-level luxury sedan manufactured by the Buick division of General Motors. The LeSabre replaced the Buick Special and was in production from 1959-2005. It was later succeeded by the Buick Lucerne.

2,607 Questions

Why does my thermal flasher keep burning out on my 1994 Buick LeSabre?

Wrong Wattage lamps or wrong side repeaters have been retro fitted. Something is drawing too much current.

Where can I find the 2002 Buick LeSabre TheftLock codes to unlock the radio?

The "Theftlock" theft deterrent system is a feature on all base and uplevel radios. There is no need to program a security code into the radio as in past model years. The theft deterrent system now utilizes class 2 serial data to determine if the radio is in the appropriate vehicle. Each time the radio receives the "run" power mode message, it compares the VIN information it has stored to the VIN information received from a module on the class 2 serial data circuit responsible for transmitting that information. If a mismatch occurs, the radio display will indicate to the user the radio is locked. Once this takes place, a DTC will set, the radio will not respond to any button presses and become inoperative. The two scenarios able to cause this condition are:

  • A radio is installed from another vehicle
  • A module which communicates on the class 2 serial data circuit which supplies VIN information to the radio is replaced and not properly setup with the correct VIN information for that vehicle

The only way to unlock the radio is by using a scan tool.

Does an electric transmission have a vacuum modulator?

No. It relies on the computer and sensors for shift points, firmness, etc. IF it has a vacuum modulator, it likely i s a backup device to get it home in case of electronic failure (which usually means the vehicle won't run anyway)

Does a 1968 Buick Le Sabre use leaded or unleaded fuel?

All '60s era vehicles used leaded gasoline. Unleaded requirements are a product of the '70s era Pollution Controls.

What is a baro sensor?

Baro sensor has to do with altitude. The higher the altitude the less air gets sucked into the engine. It helps adjust the air fuel ratio. Cars that drive into the mountains may experience drivability problems because the computer is used to a lower altitude and cars the are used to the mountain air may have problems because they are used to the thinner air. Either way, the computer is "supposed" to adjust over time.

How do you reset low tire warning light for a 2001 buick La Saber?

Once you page through the "Gage Info" menu, getting to the "Low Tire Pressure" warning, simply PRESS AND HOLD the RESET BUTTON until it resets. Hold the button in for about 10 seconds.

Buick lesabre 1993 with passkey 2 cranks starts and shuts off within 3 seconds security light not flashing pass-key module replaced cam pos sensor replaced any ideas?

Poss plugged fuel filter or bad fuel pump With the car off: Unplug the MAF (Mass Airflow Sensor) its located next to the throttle body (its a little black box, follow the air intake pipe from the filter box towards the engine if you cant find it) Turn the car on, if it runs replace the MAF (~$120)

Where does someone add Transmission fluid in a 1998 Buick LeSabre?

To add tranny fluid, you remove thr transmission oil dip stick, and use your newly bought transmission oil funnel which will fit into the transmission oil dipstick tube and add oil, little at a time is best, dont over fill, if the oil shows on the stick at the add line, checking it hot and in park running, you probably only need about a half a quart.

How do you check 02 97 o2 sensor buick lesabre?

replace them both, if u reset n sends bad code replace otherone 4 real or go 2 a shop n spend 74 - 100 4 diagnostic

Where is the oil filter located on a 1997 Buick LeSabre 3800?

the oil filter is on the left hand side of the engine (if you are looking at it from the front of the car with the hood open), behind the crank pulley.

How to replace front turn light on Buick Century 2000?

If you look on both sides of the light housing you will see to white clips. Push up on the clips and the housing releases. Just push it forward and remove the rubber caps and replace the bulb.

How many miles can you put on a Buick lesabre 2001?

I have a 2001 LeSabre. It has 189,000 miles on it and is still running strongly. With basic care and maintenance, it should go well over 200,000. However, much of that will be determined by the type of driving- short stop-and-go local trips wear a car more than driving at highway speeds. Watch for wear/leakage of seals at the intake, which can cause loss of oil/ coolant. PS- while this is not a car most young drivers would lust after, mine is being driven by my 19 yr old grand daughter as her first car- and she loves "Baby". Comfortable, reliable, good handling, peppy 3800 cc V-6 engine.

Why won't 97 buick lesabre start?

Does it turn over?

Does it have spark.fuel, and compression?

It has nothing - no ticky, tick, absolutely dead when I turn the key. But, I do have lights, radio, etc. so battery doesn't seem to be issue

Can anyone recommend a good, trustworthy mechanic in Denver area - other than dealer? ie - one you would send your Mom to. I get so tired of being talked down to by mechanics

(sorry for incomplete question - thought I was searching not actually asking!!)

Engine seized?

Bad starter?

Bad starter solenoid?

Bad neutral safety switch?

Bad Key "chip" (if so equipped)

Bad ignition switch?

Good luck let me know how you make out. (BFG)

According to repair shop - open circuit to tamper switch caused security system malfunction - $200 repair bill!

Happy to hear that "you're up and running'

BFG

What is a throttle body sensor?

throttle body sensor is a sensor that regulates gas flow. if your car is running sluggish sometimes this can confused with transmission problems when in all actuality its the sensor

What is wrong with my delay wipers when switch and motor are new but th edelay still does not work on my 2001 Buick Lesabre?

check your ground wire at your motor. known to have grounding problems. clean all grounds hooked to your firewall.