Buick Park Avenue Rough Idle

Learn if it's a simple fix or time to seek out a trusted technician.

What are common reasons my Buick Park Avenue has a rough idle?

While there are a variety of reasons your Buick Park Avenue has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.
of the time it's
Vacuum Leak
of the time it's
Spark Plugs
of the time it's
Ignition Coil

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Related Buick Park Avenue Questions

See what others are asking about their Buick Park Avenue. Get answers from RepairPal's community of auto experts and enthusiasts.
Just started to run and idle rough replaced spark plugs already what to look for after spark plug replacement?
No matter outside are cold or warm, it has rough idle sometimes and any speed sometimes. it may go around 7 miles wit...

Related Buick Park Avenue Problems

Find the most common driver-reported problems that are to blame when a Buick Park Avenue has a rough idle.
The engine control module (ecm) can fail causing stalling and various other engine & transmission drivability con...
The egr tube may develop an engine vacuum leak causing the engine to run lean. the check engine light may or may not ...
Buick Park Avenue Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Buick Park Avenue Rough Idle Repair Symptoms

A failing ignition coil will create misfires in the engine, and lead to hesitation, extreme power loss, engine stalling, poor fuel mileage, and illumination of the check engine ...Read More
As we discussed, spark plugs are necessary for any gasoline engine to run. When they fail, the engine is in a constant state of attempting to ignite air and fuel, but cannot. Th...Read More