2002 Buick Century - Answered Questions & Fixed issues

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2002 Buick Century. How to change the upstream o2 sensor in it please?

Question edited for clarity. Question moved to model category. Not an easy job. It is the sensor between the rear bank exhaust manifold and the catalytic converter.

00 century bank1 sensor1 o2 sensor

Buick Forums https://buickforums.com > ... > Buick Century Forum Mar 14, 2015 - Bank 1 Sensor 2 (Also called the Downstream Sensor) is located after the cat. They are both a PITA to get to and remove. There are safety locks ...
1/2/2024 10:45:02 PM • 2002 Buick... • Answered on Jan 02, 2024 • 23 views
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2002 Buick Century front blower wont shut off.

the blower resistor should be your problem

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3/23/2024 12:55:52 AM • 2002 Buick... • Answered on Mar 23, 2024 • 180 views
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Cant fill my tank,pump keeps

Hello topromeo.

In modern vehicles there is a system in place to capture and burn the vapors when filling the fuel tank.
This consists of a carbon canister, hoses and valves.
The vapors when filling the tank are routed through the carbon canister and stored there until the car is driven.

Under certain conditions these valves need to close to test the system integrity.
In your case there is a valve that has stuck closed and not allowing vapors to vent through.

This is called a canister vent valve and is located under the car on the carbon canister.
It should be available at your local Buick dealer.

If you require further advise on this subject please ask me here.

Thank you for using FixYa.

KL
12/9/2022 12:03:57 PM • 2002 Buick... • Answered on Dec 09, 2022 • 868 views
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I have a 2002 Buick Century that stalls when I am

Power steering pressure switch going bad not idling engine up .
10/6/2022 2:21:45 PM • 2002 Buick... • Answered on Oct 06, 2022 • 569 views
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Where is the fuse for the horn on 2002 buick century

usually in the cab fuse box 20 - 30 amp
9/7/2022 12:46:22 PM • 2002 Buick... • Answered on Sep 07, 2022 • 1,973 views
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Horn location on 2002 Buick Century

hey mike
they located behind the front bumper
i hope its help
9/7/2022 12:43:38 PM • 2002 Buick... • Answered on Sep 07, 2022 • 1,625 views
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Fix my spongy brake pedal on my 2002 Buick century

Pressurized brake bleeding from Calipers up to the master cylinder. You have to do it this way because of the ABS.
4/19/2022 4:22:24 AM • 2002 Buick... • Answered on Apr 19, 2022 • 105 views
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How to turn off traction control for a 2002 Buick Century

The Enhanced
Traction System
warning light may
come on for the
following reasons:

If you turn the system off by shifting to SECOND (2)
or FIRST (1), the warning light will come on and stay
on. To turn the system back on, shift to THIRD (3) or
AUTOMATIC OVERDRIVE (). See “Enhanced
Traction System” in the Index.

If the Enhanced Traction System warning light
comes on and stays on for an extended period of
time when the system is turned on, your vehicle
needs service. Adjust your driving accordingly.

The warning light will come on when you set your
parking brake with the engine running, and it will
stay on if your parking brake doesn’t release fully.
If the transaxle shift lever is in any position other
than FIRST (1) or SECOND (2) and the warning
light stays on after your parking brake is fully
released, it means there’s a problem with the system.

If the traction control system is affected by an
engine-related problem, the system will turn off
and the warning light will come on.
10/20/2021 11:05:18 PM • 2002 Buick... • Answered on Oct 20, 2021 • 636 views
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Replace license plate light bulb 2002 buick century

you have to remove 8 screws on the back of the panel. The entire back where the lights are is one piece attached to the trunk lid, so you will be working over head. Remove the eights screws and pull the whole piece off. easy to do but takes a few. All back lights are accessable from there. If you need new bulbs or anything click here: Aliexpress Homepage and you can find anything for cheapest prices. I hope this helped
3/25/2020 12:55:24 AM • 2002 Buick... • Answered on Mar 25, 2020 • 2,150 views
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My 2002 buick century is missing it's manual. Can

go to any local auto wrecking yard and they may not even charge you for it
2/21/2019 3:47:54 AM • 2002 Buick... • Answered on Feb 21, 2019 • 445 views
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2002 Buick Century anti-lock brake problems

i recently had this problem too, except i had all the lights on (ABS, service vehicle, trac-off, AND service engine) they are all easy to fix without spending more than 20-30$ for labour (depending how much your mechanic charges you) mine did it for free and he found out why the engine light is on afterwards too. so to fix all these lights (abs, trac-off, and service vehicle you MUST get another ABS cable (i went to a garage, they were towing a GM vehicle to the junk yard so i grabbed some scissors and cut BOTH abs cables on each side (good thing i did because one was bad) and braught them to my mechanic. the reason the lights come on is probably a defect or in my case my mechanic said it was salt buildup in the wires (on the drivers side) so he cut the wire off and rewired the new one and BOOM all the lights came off (service vehicle, abs, and trac-off) now for my service engine it says catalytic converter but im trying to put some fuel system cleaner to help it out i read somewhere that this is a defect of the car, so if you dont have that light yet, SELL your car ASAP for as much as you can get for it (after fixing the lights of course) and always google (car name+recalls) in the search bar to see what youre getting into, take care
5/16/2022 6:29:13 AM • 2002 Buick... • Answered on May 16, 2022 • 20,470 views
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Crank no start.

You ever change the fuel filter?
9/12/2018 1:35:41 PM • 2002 Buick... • Answered on Sep 12, 2018 • 498 views
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I have a 2002 Buick Century that is leaking water from below the front left windshield.How much disassembly is required to find the leak?

You may find that the drain at the bottom of the wind screen is blocked allowing water to get inside the car. It is worth trying to blow all the debris away as you may get lucky and blow the blockage away. You will need a compressor with a duster gun that can direct air into all the inaccessible areas.
6/3/2018 1:08:54 AM • 2002 Buick... • Answered on Jun 03, 2018 • 209 views
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Do a new ignition module need to be program for a 2002 buric century?

No ,a new ignition module doesn't need programming
3/24/2018 4:51:42 PM • 2002 Buick... • Answered on Mar 24, 2018 • 60 views
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2002 buick century custom. The first person who

get some quality wire connectors and match color for color.
1/13/2018 6:19:13 PM • 2002 Buick... • Answered on Jan 13, 2018 • 106 views
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The light on the dash

No it's not a alternator problem , Instrument cluster problem . Fixing PRNDL odometer LED not displaying on 2001 Buick Century
12/31/2017 12:04:40 PM • 2002 Buick... • Answered on Dec 31, 2017 • 1,539 views
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Buick 1998 Century My left rear brake light does

Contacts inside where the bulb attains its energy from need to be inspected. Burnt contacts are very common on these vehicles ie: the power that is present does not have a complete circuit path to make it through the load (bulb)
12/22/2017 4:56:15 PM • 2002 Buick... • Answered on Dec 22, 2017 • 72 views
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Have a 1998 buick century, the front blinker on

This behavior is usually caused by water leaking into the socket or just a bad socket. Clean it up and use some dialetric grease on the contacts.
11/13/2017 10:37:09 PM • 2002 Buick... • Answered on Nov 13, 2017 • 222 views
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My AC keeps blowing fuses.

Hi Gouldkareng. Please allow me to try to help you. There could be a number of reasons why your AC keeps blowing fuses. Some of these could be.. * An issue with your fuse box. * The filter could be dirty. * There could be a problem with your central power supply. * The condenser fan might have gone bad. * There could be low refrigerant. * Your circuitry might be causing the problem. * The capacitor could be malfunctioning. The list is way too vast. You could find a whole list of problems detailed here... https://getpureair.com/why-does-my-air-conditioner-keep-blowing-fuses/ As there are way too many problems wiuth fixing this kind of an issue, there are way too many solutions and if you want to try and fix the probelm ob your own, here is some information that could be usewful to you.. https://yourairexperts.com/blog/ac-tripping-breaker You can also find more help here... https://asm-air.com/airconditioning/air-conditioner-circuit-breaker-keeps-tripping-asm-tips/ I have also attached a video that you might find helpful in aiding you with this issue. Though it is very true that fixing this kind of a problem does not involve rocket science, it might turn out to be too much of an ordeal for you. As you are in Houston Tx, at the following places.. https://acmanhouston.com/contact-us/ https://www.abacusplumbing.net/ https://www.besthvacairconditioning.com/ http://24.repair/ If you want to buy used ACs in Houston Tx, do check out the following... 1. A1 & AC Appliance Center Address: 1028 N Shepherd Dr, Houston, TX 77008, USA Phone: +1 713-868-7402 2. https://pmhvac.com/ 3. http://www.jmapplianceac.com/ Hope that helps. Best wishes. Regards.
5/6/2020 8:12:29 PM • 2002 Buick... • Answered on May 06, 2020 • 2,075 views
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