The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.
Resources for the Repair and Maintenance of your 2004 Buick Century
2004 Buick Century
2004 Buick Century Problems
A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.
The high pressure power steering hose will commonly leak fluid; it should be replaced.
Corrosion may develop at the connection between the ignition coil tower and spark plug wire resulting in an engine misfire. The Ignition coil and spark plug wire should both be replaced to correct this condition.
An engine oil leak may develop from the rear of the engine. This is commonly caused by a failed oil pump drive o-ring seal. The leaking o-ring should be replaced to correct this concern.
2004 Buick Century Questions and Answers
My engine cooling fan doesn't come on until the heat gauge gets to 5/8 ths. It also shuts off once it drops back to 1/2. In the past it would always stay below the half way mark
The speedometor works for awhile and then it jumps ahead and it looks like I am going 90 miles an hour when I am going 30 miles. How can I fix it and how much will this cost?
i changed the battery in my 2004 buick century took it for emissions and they told me the drive cycle was wiped out,what do i do?
is there a cheaper way to buy a keyless remote, instead of paying ?50.00