Fuel Injector
Clogged or leaking fuel injectors can cause rough idling, poor mileage, hard starts, and a check engine light. A mechanic tests your injectors and cleans or replaces the faulty ones so fuel sprays correctly and your engine runs smoothly. Fixing it restores power and protects your engine from damage.
Find a TechnicianCommon causes
- Carbon and fuel deposits clogging the injector nozzle
- Dirty fuel or a failing fuel filter passing debris
- Worn seals causing fuel leaks
- Electrical or wiring faults in the injector
- Poor-quality fuel leaving varnish buildup
Frequently asked questions
Should I clean or replace my fuel injectors?
It depends on the problem. Mildly clogged injectors often respond to a professional cleaning, but injectors that leak or fail electrically usually need replacement. A test tells your mechanic which is right.
What happens if I ignore a bad fuel injector?
You may notice worse fuel economy, misfires, and rough running, and over time a leaking injector can wash oil off cylinder walls or damage the catalytic converter. It's best to address it early.
Can dirty injectors cause a check engine light?
Yes. A clogged or leaking injector can trigger misfire or fuel-trim codes that turn on the check engine light. A scan helps pinpoint the affected injector.
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