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Driver window
This is a known problem on the Buick Century. This is oftentimes corrected by replacing the power window switch. When these switches are faulty, they start to work intermittently as you describe.
how to remove black case for front plug wires
You will need to support the motor with a jack underneath and remove the motor mount bracket (so the plug wire cover can then be opened to get the plug wires out). If you do not remove the motor mount...
All of my lights went out at once
Hi, thanks for writing in. When it comes to electrical issues like this one, the problem can come from many components. While it is possible that all of the light bulbs would go out at once, it is highly unlikely....
The theft deterrent module is located behind the glove box on this vehicle. The module will require the dealer to test it and if needed, to replace it and program it to work on your vehicle. It takes a special...
What's causing my car to all the sudden lose power steering and the A/C to stop blowing cold?
Hello there, thank you for asking about your 2005 Buick Century. If the belt would stop and spin intermittently but was still intact then you more than likely have a bad harmonic balancer. The balancer deteriorates and the outer pulley...
Engine shuts off while braking
Hello. If your vehicle has stalled, and will no longer turn over then it may possible that the alternator has failed. A faulty alternator will not be able to properly charge the battery. This will place a drain on the...
Do I need a press to replace the front passenger wheel bearing?
Thanks for writing in about your 1999 Buick Century. The short answer is: no, your wheel bearing is bolted in with 3 bolts. If you need assistance with the replacement of your wheel bearing, consider YourMechanic, as one of our...
Car was weak starting and would barely go once I tried to drive it.
It sounds like your battery or your alternator is getting weak. When the vehicle starts slowly and seems to have trouble, this is usually related to a dying or dead battery. The alternators job is to charge the battery while...
Key turns, no crank
The starting system is rather simple. There are only a few components that can cause this to happen. The first place to check is with the starter. They can fail intermittently and this is a sign that it is going...
Headlights aim too low when properly adjusted by two mechanics.
Hello. If the headlights are not pointed correctly, then they likely need to be adjusted. Even if a technician has already adjusted them, it may be possible that they were incorrectly pointed. An issue with the mounting may also be...
Car is easy to put in gear, but won't move. It can be pushed so no wheel or break lockage. Transmission fluid is very dark
Hi there, thanks for writing in. Odds are high that the transmission has failed. "Dark" fluid indicated a lot of clutch pack material has worn. Also, this can cause the pump to fail inside the transmission. Flushing the fluid at...
Why does car start when MAF sensor is cleaned with spray even after being disconnected
The MAF sensor may be not reading the correct altitude you are at and may see 10,000 ft when you are less than 500 feet. When you disconnect it the computer uses a set look up table stored in memory...
Check engine light
Hi there, thanks for your question. I'd be happy to help. A [misfire can be caused by a variety of things other than bad spark plugs such as bad plug wires, vacuum leak, dirty fuel injectors, a weak fuel pump...
Are crankshaft pulleys and harmonic balancers the same thing? I have a 1998 Buick Century custom and it is wobbling and making a loud noise.
Hi, thanks for writing in. On your vehicle, the pulley is actually manufactured into the harmonic balancer. If the pulley is wobbling, it would be best to have a certified mechanic, like those available at, take a look at...
How can I tell if my radiator uses a bevel washer or a nut?
Hi and thanks for contacting YourMechanic. When it comes to replacing the radiator in your vehicle, it is best to replace the radiator with the OEM type. If there are two types of radiators that go into your vehicle, you...
I think I installed the front hub seal backwards
Hi, thanks for writing in. When a hub seal is installed, the lip on the hub seal will want to be on the top when you are pressing it in. There is always one side that is slightly wider than...
engine light on
Hello, thanks for writing in. Fault codes have a priority and classification. The canister purge valve is an emission base code, a high priority that cannot be cleared by disconnecting the battery. This code must be cleared with a scan...
Is it possible to patch a radiator if the hole is small enough?
Hello, patching a radiator is not recommend. From the location point the radiator tank is cracked. Overheating the engine can lead to internal damage. There is a web site (rock that has great prices on parts. A radiator of...
Car stalls at idle and fails to restart - 1993 Buick Century
Hello - yes, your symptom description matches the failure mode of the throttle position sensor as your Check Engine code suggests. The ECM has detected lower voltage than expected from the TPS, and should be replaced. A mobile, professional mechanic,...
My car won't start. It acts like it want to start but will not.
Hi there, thanks for writing in. In many cases, when we have accessories running (like the stereo and the doors open that triggers lights) without the engine running, it can cause the battery to drain and loose cranking amps. When...

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