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Lincoln Navigator Rough Idle

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

What are common reasons my Lincoln Navigator has a rough idle?

While there are a variety of reasons your Lincoln Navigator 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

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Related Lincoln Navigator Questions

See what others are asking about their Lincoln Navigator. Get answers from RepairPal's community of auto experts and enthusiasts.
When i try to start the truck, i have to press down the gas to start. when it eventually starts, it idles rough like ...
Well, when i got it home, the next day i had the oil changed and all of the spark plugs changed out. still no change ...

Related Lincoln Navigator Problems

Find the most common driver-reported problems that are to blame when a Lincoln Navigator has a rough idle.
A vacuum leak from the pcv grommet vacuum leak can cause the check engine light to illuminate. the molded rubber hose...
In high dust areas, problems with the egr system are common. the filter for the egr solenoid may plug and cause the ...
Lincoln Navigator Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Lincoln Navigator 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