Close

Ford F-350 Rough Idle

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

What are common reasons my Ford F-350 has a rough idle?

While there are a variety of reasons your Ford F-350 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 Ford issue diagnosed by a professional

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

Related Ford F-350 Questions

See what others are asking about their Ford F-350. Get answers from RepairPal's community of auto experts and enthusiasts.
Actual engine mileage unknown. Has had the coil, spark plus, wires, and ignition module replaced. distributor is ok a...
will not power up scanner. floods at idle. back fires. run roughs.

Related Ford F-350 Problems

Find the most common driver-reported problems that are to blame when a Ford F-350 has a rough idle.
Fuel injector seals can start to leak and allow oil into the fuel system. Symptoms of this might be rough engine idl...
Using the correct oil for this engine is critical. Improper engine oil can foam in the high pressure system and not d...
Ford F-350 Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Ford F-350 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