Close

Saturn L100 Rough Idle

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

What are common reasons my Saturn L100 has a rough idle?

While there are a variety of reasons your Saturn L100 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.
34%
of the time it's
Vacuum Leak
21%
of the time it's
Spark Plugs
15%
of the time it's
Ignition Coil

Get your Saturn issue diagnosed by a professional

Find a high quality auto repair shop or dealer near you
x

Related Saturn L100 Questions

See what others are asking about their Saturn L100. Get answers from RepairPal's community of auto experts and enthusiasts.
Ok first off water wa in my oil . So. Changed head gasket, and the rest from there up.car still ran, but wanted to id...

Related Saturn L100 Problems

Find the most common driver-reported problems that are to blame when a Saturn L100 has a rough idle.
The ignition module or an ignition coil may fail causing an engine misfire, the Check Engine Light may or may not ill...

Saturn L100 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