2002 Buick LeSabre - Answered Questions & Fixed issues

Question edited for clarity. Question moved to model category.

2000 Buick Lesabre Car Stereo Wire Colors and Locations

the12volt.com https://www.the12volt.com > installbay > stereodetail 2000 Buick Lesabre Stereo Wiring ; Constant 12V+, Orange ; Switched 12V+, Yellow ; Ground, Black/White ; Illumination, Gray/Black ; Dimmer, Brown/White. ..

Question edited for clarity. Question moved to model category.

Buick LeSabre P0440: EVAP System Malfunction - 700R4

https://www.700r4transmissionhq.com > p0440-buick-l... Jan 20, 2019 - A very common trouble code with the Buick LeSabre is the P0440 code. This trouble code references a number that is given to you when you ...

They are all in the fuse box under the hood the relays dont work in a way where one controls one fan and one controls another fan they run the fans in series for low speed and paralel for high speed. They are numbered 37,39,40 you would have to replace them all to see if that takes care of your problem

PWR WDO - 30amp circuit breaker , DRV -MDL 10amp fuse - both are located in the rear fuse box . Fuse Block Rear Under the left side of the rear passenger compartment seat

It should be under the back seat in the passenger side.The bottom cushion hinges forward on hooked anchor tabs at the lower front of the cushion. Take hold of the bottom cushion at the seam where it meets the bottom of the backrest and lift. The bottom cushion will hinge forward and the hooked tabs at the lower front of the cushion will release from the anchors so that you can lift the cushion out of the car.

How about actually FIXING it? It's really easy. There is NO way to disable PassKeyIII unless you know how to rewrite the software code. If you could disable it, they wouldn't call it anti-theft.

First sign of ignition switch failing

Sounds like ignition module is starting to fail

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

why don't u try online some websites deal in it real time.. along with solutions to problems how to repair fix ser vice nd all reliable-store is pretty good.. they a lso have live assistance

Wish I could take a photo for you but I don't have the vehicle anymore. It is located outside the ducts in the middle near the floor. You have to take some pieces off to get to it. If I remember correctly, it's in front of the blower. Toward the rear of the vehicle. Hope this helps...

Are you sure the master is building pressure? Somew of those also build up and make pressure while running because without the assist they just dont get any priming going. Try it while its running and then the only other thing would be bench test the master https://www.youtube.com/watch?v=-HxqoGjTGy4

It is 3.8l engine and what year is the buick. Thank's

Check the arm assembly as there is only one motor

Manual or automatic climate control ? Duel zone ? Could be caused by a stuck or sticking temp. blend door actuator . Hooking up a scanner an checking for DTC'S - diagnostic trtouble code's should be the first thing to do , not guessing an just replacing parts . Automatic system can set a bunch of DTC'S DTC B0126 DTC B0131 DTC B0159 DTC B0164 DTC B0174 DTC B0179 DTC B0184 or B0189 DTC B0234 DTC B0237 DTC B0249 DTC B0252 DTC B0269 DTC B0272 DTC B0279 DTC B0282 DTC B0490 DTC B1000 DTC B2805 DTC P0530 DTC P1536 DTC P1540 DTC P1546 Your best bet mite be to take your vehicle to a qualified repair shop .

The blend door in the HVAC plenum controls temperature, and that door has an electrical actuator that may have failed. Switching door(s) for diverting air to the different outlets is set by vacuum controlled diaphragm(s) and maybe either a diaphragm has failed or you have a vacuum line problem. Since both are controlled by the HVAC control panel/module you replaced, sounds like even though you replaced it, it may not be working correctly - the only way to diagnose is to check the electrical line to and back from the actuator for correct readings, and vacuum lines at the controller and diaphragm(s) for vacuum. You should also recheck the connections to make sure they are correct.. If you used a replacement controller from another vehicle, the replacement controller must be an exact match to the HVAC option in the vehicle, and a new OEM version is strongly recommended if you can find one. Try YouTube to see what's involved in fixing these components.

Related. The car is low or out of coolant, and must be fixed before you blow up the engine ( if it is not too late already). Take it in and have all this checked by a reputable garage. The heat will quit anytime you have a cooling system issue. God bless your efforts.

code p 0420 refers to cat converter system bank 1-efficiency below threshold ====causes --cat converter---wiring ---Heated oxygen sensor (HO2S) in the manifold before the cat converter as the cat converter is new , that will not be an option as for the rest if the codes were not prior to the cat replacement , I would suspect wire harness problems from the cat fitment possible to use a scan tool to reset the ECm

The switch is shorted to ground. Verify with a multimeter. But before take your precautions with the air bag in the steering wheel. Desactivate it before.

Hey robert, sounds like the a/c compressor may be locked up...you can get a new compressor or get a "bypass kit" that replaces the compressor with a pulley and it should be fine.. Some parts houses will assist you in getting a short serpentine belt that will allow you to eliminate the compressor with just a shorter belt..(IF the configuration wil allow)..