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Should spark plugs be replaced early if 1999 buick century is over 18 years old?
It certainly would not hurt to remove the spark plugs to take a look at them to determine if they need to be replaced. A normal looking spark plug will have a grayish tan color to the threads and electrode....
2005,Buick,century oil light comes on filled with three quarts car stalls
Hi Marie. Thanks for contacting us today. If you had to add three quarts of oil in the engine of your Buick Century, then you likely have a rather aggressive oil leak or consumption problem. This could be due to...
I blew a head gasket and then I got a bottle of blue devil it seems it sealed but when I start my 2003buick century it grinds
Hi there. The biggest problem with 'engine seal' liquids is that they typically create more problems than create solutions. Unfortunately, when these products are used, it's incredibly difficult to diagnose what's causing your issues without completing a physical inspection. It's...
If the noise is due to worn brakes alone, the pad material may be completely gone and thus the metal backing plate is grinding against the brake rotor when you apply the brakes. It's possible there is part interference as...
What you are describing sounds like a failing CV joint. A CV (Constant Velocity) joint is a shaft that connects the transmission to the wheels, essentially transferring the power from the drive train directly to the wheels. The CV joint...
I have a 97 Buick century and when I'm driving the speedometer is bouncing and when I'm driving it starts to jerk sometimes
If the vehicle speed is constant, but the speedometer reading is erratic, there is a fault in the gauge cluster or in the signal from the transmission. If, though, you are referring to erratic engine operation, perhaps just at low...
New tires yesterday and later my brake light came on. Pedal pressure lost, then came back, light still on! 99 Buick Century
Hi Adam. Thanks for submitting the question. Unfortunately, there really is no way to prove what caused the brake line damage without fully understanding and seeing every step of service. When replacing tires, the brake lines are not touched in...
Please help me fix my car.
It is very possible that you could be having an issue with your transmission. I would recommend having your transmission inspected by a qualified professional to determine if it is functioning properly. Typically when a vehicle cannot accelerate past a...
Will air pockets in the cooling system cause the top radiator hose to get hard and build pressure.
Air pockets in the cooling system may disrupt the flow of coolant through the proper passages ultimately cause the vehicle to overheat or damage coolant hoses by causing them to burst. I would suggest having a professional from YourMechanic come...
Q: Does not start
It sounds like you may have an issue with the starter being properly aligned not allowing the starter gear to properly engage the flywheel. When this happens, this may produce a loud scraping noise as you describe. This happens when...
I have a 2002 Buick Century and my "service vehicle soon" light is on along with the "anti lock" light and the "Trac off" light.
Hi Eric. Thanks for contacting us today. Unfortunately, it's not possible to correctly diagnose the root source of your warning lights remotely. The lights you've indicated - the ABS and Trac Off light are monitored and triggered by multiple vehicle...
My 2001 Buick century when it goes over 30 it shift out and jump
What you are describing may be a result of a faulty speed sensor, potentially low transmission fluid or a even a faulty transmission control solenoid. As your vehicle travels down the road, the computer analyzes data being sent by vehicle...
I've got a 2003 Buick Century 3.1 engine. I have replaced the head gaskets, radiator, thermostat, water pump,and heater core and a
This is usually caused by air pockets in the system. Purge air from the cooling system and see if this fixes the problem. You may have a slipping serpentine belt and should check it for slipping.
Pulsing sound coming from engine of 98 buick century ?
Hello, thank you for writing in. The vehicle may be stalling once in gear for several reasons. To start, check the level and condition of your transmission fluid. Low or dirty fluid will cause issues with the pressure, and can...
My check engine light is on even after replacing both O2 sensors.
When a car has as many miles as your has, the problems really start to stack up until it seems like everything happens at once. Reading and interpreting the codes can be more subtle than it appears.The guys at the...
all my wires are fin the old one does not shoe the same codes just the egr valve has poor flow and that was fixed
If you have codes that implicate the O2 (oxygen) sensor, those codes should be evaluated. The oxygen sensor can be tested remotely using an automotive scanner and that testing should be performed before you consider replacing it. To get this...
my engine light still comes on after i replaced the 02 sensors and the idle air control valve .now the code is low voltage on bank
The codes describe the conditions in the circuit. A low sensor voltage code may not mean the sensor is bad, it might mean there is a problem in the wiring harness or in the relay for the sensor heater. I'm...
my99 3.1 gm idles up and down replaced the iac and egr what gives then dies but driving its ok
You most likely have a intake vacuum leak. You should have the computer scanned first to make sure you do not have a TPS problem or other sensor issue. Pinch off the vacuum line to the brake booster to see...
abs light stays on in my 2001 Buick century limited edition
If you altered the rear brakes then this may be the cause of the ABS light coming on? I suggest you have the ABS system tested and if it is due to the modifications you did then there may not...
2000 Buick century stop accelerating while driving,it did not shut off over heat did not smoke, I check trans fluid it was ok
The computer may limit engine power if it detects a system problem. You will need to have the computer scanned for codes stored in memory to see what has caused the loss of power and acceleration. You may have a...

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