Ford E-350 Rough Idle

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

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

While there are a variety of reasons your Ford E-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.
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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See what others are asking about their Ford E-350. Get answers from RepairPal's community of auto experts and enthusiasts.
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Related Ford E-350 Problems

Find the most common driver-reported problems that are to blame when a Ford E-350 has a rough idle.
The check engine light may illuminate, the engine may run rough and have misfires on acceleration. commonly the ignit...
A defective thick film ignition (tfi) module can cause the engine to stall while driving, or the engine may not sta...
Ford E-350 Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Ford E-350 Rough Idle Repair Symptoms

A failing ignition coil can create several symptoms: Check engine light comes on Engine runs poorly or stall Increased emissions Reduced fuel economy Car won’t start I...Read More
When spark plugs fail, the engine will struggle. The check engine light will come on, and it may appear either solid or flashing. The driver would likely notice one or more of t...Read More