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Problems for specific Buick Century years:

Car problem reports

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Most reported 1990 Buick Century problems

 

Verified for the Buick Century

The spark plug wire rubber boots may get soaked with oil, causing a misfire or rough idle.

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Verified for the Buick Century

Fuel injectors can short-circuit electrically causing a rougher than normal idle and reduced performance.

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Verified for the Buick Century
Timing gears may wear causing a mild to severe knocking noise from the front of the engine. Replacement of the timing gears is necessary.
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Verified for the Buick Century

The front struts may show signs of wear, or be excessively bouncy ride at freeway speeds. This may begin to occur at around 75,000 miles.

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