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.
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 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 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