Buick LeSabre - Recent Questions, Troubleshooting & Support


There should be a fuse panel behind the glove box. You'll have to access it by pulling the rubber tabs inward to allow the glove box to pop out. Also, check the fuses on the driver's side fuse panel.

1997 Buick... | Answered on Jun 25, 2020


The fuse box locations and there diagrams are in the owners manual. If you don't have one you can download one at the GM site for free. Here is the LINK

1997 Buick... | Answered on Jun 25, 2020


Malfunction The evaporative control (EVAP) system captures any raw fuel evaporating from the fuel storage system (e.g. the fuel tank, filler neck, and fuel cap). Under precise operating conditions-dictated by engine temperature, speed, and load-the EVAP system stores and purges these captured fuel vapors back into the combustion process. The carbon canister, which stores the raw fuel vapors, utilizes a vent valve that allows fresh air to enter the EVAP system. This displaces the fuel vapor as it's purged into the combustion process. Code P0449 indicates that the evaporative control (EVAP) system vent valve solenoid is malfunctioning. This can be caused by either too little or too much electrical resistance or a mechanical problem with the vent valve itself. P0449 Symptoms
  • Check Engine Light will illuminate
  • In most cases, there are no adverse conditions noticed by the driver
  • In some cases, there may be a noticeable fuel odor caused by the release of fuel vapors
Common Problems That Trigger the P0449 Code
  • Missing fuel cap
  • Defective Evaporative Vent Valve
  • Defective or damaged fuel cap
  • Distorted, damaged or cracked Fuel Tank Filler Neck
  • Torn or punctured Evaporative system hose(s)
  • Defective Fuel Tank Sending Unit gasket or seal
  • Split or damaged Carbon Canister
  • Defective or damaged fuel tank
Common Misdiagnoses
  • Fuel cap
  • Evaporative Purge Valve
  • Evaporative Vent Valve
Polluting Gases Expelled
  • HCs (Hydrocarbons): Unburned droplets of raw fuel that smell, affect breathing, and contribute to smog

2001 Buick... | Answered on Apr 25, 2020


  1. Step 1 Purchase a replacement bulb from an auto parts department or auto parts store. The bulb number is 4157NAK. You also can check the parts book or ask store employee for assistance.
  2. Step 2 Open the hood of the vehicle. The hood release handle is located under the dash on the left side of the vehicle. Once you discharge it, you must free the second hood release under the hood of the vehicle in the center. Move it to the right and lift the hood.
  3. Step 3 Locate two headlamp retainers (clamps) holding the headlamp in place. Pull up to remove them to discharge the tabs on the assembly.
  4. Step 4 Detach the power to the headlamp. Now you can easily remove the assembly out of its position.
  5. Step 5 Take off the rubber cover located in back of the turn signal light. This will allow access to the bulb socket.
  6. Step 6 Turn the light socket counterclockwise to remove it from the assembly.
  7. Step 7 Remove the old bulb by holding the bottom of it and pulling it gently up. Replace with new bulb.
  8. Step 8 Once you have replaced the bulb, put the light socket back in the assembly and turn it clockwise to secure it.
  9. Step 9 Replace the rubber covering on the back of the headlamp assembly.
  10. Step 10 Put the headlamp assembly back in place by sliding it in the slot and attach the power supply.
  11. Step 11 Replace the retainer clamps to hold the headlight assembly in place and close the hood of the vehicle.

2002 Buick... | Answered on Apr 22, 2020


You can see in the video bellow
The bulb can be found on ebay/Amazon or according to me Aliexpress Homepage
It's the biggest and cheapest worldwide suplier.
Just type the correct name into the searchbox and
thats it
wish you luck

2004 Buick... | Answered on Mar 28, 2020


They are inside the plastic back attached to the trunk lid. To remove it there are nuts recessed in the back of the lid that have to be removed. The wiring pretty much keeps the back from falling but you still want to be careful. You need deep recess sockets to get to the nuts.

2000 Buick... | Answered on Mar 24, 2020


Best replacement bulbs with greatest prices can be found on http://alibaba-homepage.com/. I hope I helped
Peter

2005 Buick... | Answered on Mar 24, 2020


Dana when trying to find help on here Please always remember to list the engine your vehicle has. While they are all pretty much similar they are different. On Most GM vehicles they are located on the passengers side towards the Firewall (back of the engine) to the left of the throttle body. The older ones just have a vacuum line going to it while newer ones have a vacuum line and an electrical plug. Two bolts or nuts hold them on and be sure you get & install the new heat resistant gasket.

1997 Buick... | Answered on Mar 14, 2020


Support front wheels off ground. Chock rear tires, get an assistant for safty. Start engine (do not put in gear) step outside of car and manually turn wheels left and right by hand. Cut off engine. Turn key back to release steering lock. Manually turn wheels by hand again. If it requires the same ammount of strength to turn wheels, then Rack and Pinion is bypassing internally. Solution... replace rack & pinion.

1997 Buick... | Answered on Feb 13, 2020


My wipers on my 2003 Buick lesbera wouldn't stop we took fuse out then they wouldn't come back on checked all fuses and relay they still won't work

2002 Buick... | Answered on Jan 28, 2020


How to change the air conditioning bolt that is broke in the. Bracket

1997 Buick... | Answered on Jan 11, 2020


You must take it to a dealership and they will unlock it for you. There is a specific dealer code that will unlock any radio and once they do it, you pick one that you will remember. This is part of the anti theft. Hope this helps.

1997 Buick... | Answered on Dec 30, 2019


The unlock code is on the back of the radio. Use an extension mirror to see it.Turn the radio to the on position and press the alphanumerical code in.

1999 Buick... | Answered on Dec 30, 2019


its the control head where the heater controls are its a complete unit

Buick LeSabre... | Answered on Nov 28, 2019


http://www.fixya.com/answer/answerpageslideview.aspx?thid=29712938&ctg=231&brd=6598&fml=859

1998 Buick... | Answered on Nov 10, 2019


First thoughts is to check the voltage at the wiper motor. It the motor has power, the motor probably has failed. If there is no power at the motor, look for a short or some connection has come loose.

2004 Buick... | Answered on Nov 07, 2019


That can be a tough one to diagnose. I suspect they are not the only items in the car not immediately getting power, which suggests an intermittent problem with a master fuse or relay. If I were you, I would start by getting ahold of the circuit diagrams for the car (try Alldatadiy.com) and trace back the circuits from the brake and dashboard lights to where they reach a common fuse or relay and check those.

2000 Buick... | Answered on Nov 03, 2019


The chance of the Power Train Control Module (PCM) failing is very small, about 3% per industry research, so expert ndguy2481 is giving bad advice, it is more likely the crankshaft position sensor or the ignition module have a problem when they warm up. Run a test on the PCM to retrieve the trouble codes, I know there will be some. The connector to do this test is under the dash below the steering wheel under the dash panel.

1994 Buick... | Answered on Oct 26, 2019


You've probably fixed it by this time, but I'll offer this: There's a microswitch in the ignition lock cylinder. When you insert the key, turn it & go past the run, to start position, the PassKey module wants to see the correct resistance from the pellet in your key. If it matches the pre-programmed value, it will complete the circuit of what is known as a "Wheatstone Bridge " in the module, and allow ignition, cranking & fuel systems to operate. If it doesn't see the correct value, it will shut down for like 5 minutes or something, then reset for the next try. The problem is, that after innumerable cyclings of the key, one of the the two wires will separate internally, disabling the system totally. The two wires exit the lower end of the steering column, & are a very shiny white, and orange in color. They terminate in a connector that can be disconnected. Do that. Then take a measurement between the two exposed wires in that little black pellet on your key, with an ohmmeter & obtain a resistor of the same value. Don't worry about the wattage value of the resistor....a 1/8 watt resistor will work just fine, as there is minimal current in the circuit. Insert the resistor into the two wires that go into the wiring harness (Not the two going up into the steering column). If the microswitch was at fault, your problem is now cured, although your PassKey system is now disabled. The upside is that you can now have spare keys made from the cheap blanks without the resistor in them. Good luck.

1999 Buick... | Answered on Sep 30, 2019

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