Toyota Tercel Rough Idle

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

What are common reasons my Toyota Tercel has a rough idle?

While there are a variety of reasons your Toyota Tercel 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 Toyota Tercel Questions

See what others are asking about their Toyota Tercel. Get answers from RepairPal's community of auto experts and enthusiasts.
i just took my car to get smog, it didn't pass the emission test. they said it fail because they hydrocarbons or (hc...
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Related Toyota Tercel Problems

Find the most common driver-reported problems that are to blame when a Toyota Tercel has a rough idle.
A rough idle and even an emissions inspection failure for high hc and co can be caused by improperly adjusted valves....
The toyota tercel has a known issue with the valves that if left unchecked, will cause burned valves and engine perfo...

Toyota Tercel 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