Skip the auto shop - Our mechanics make house calls

Q: Slight misfire

asked by on

Just recently started to feel slight skip or misfire when driving at regular speeds. Will changing plugs help? Have already ran several cans of cleaner through it. Would appreciate any help. Thanks Thomas

My car has 155000 miles.

A: Hi there. From the description you have giv...

Hi there. From the description you have given, the slight misfire could be caused by worn or fouled spark plugs. The slight misfire is apparently not being recognized by the vehicle’s computer (the check engine light would flash and then stay on). If your car is due for a tune-up, servicing the throttle body and positive crankshaft ventilation valve (PCV valve), replacing spark plugs, replacing the air filter and fuel filter (if, applicable) could take care of the slight misfire you are feeling. I recommend having your vehicle’s misfire be diagnosed and repaired by a certified technician from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Can't find Schrader valve

Hi there. Many Asian manufacturers do not use the valve in their fuel systems. They have opted to not include this as it presents a fire hazard should the valve fail. A proper fuel pressure test requires other adapters that...

Q: Check engine light code P0420

You may have a purge valve that is leaking and causing excessive fumes to enter the intake manifold during the refuel process. When you start the vehicle, the excessive rich mixture may be causing the catalyst to overheat which will...

Q: Radio and bluetooth acting up

Correcting issues like this with Ford Sync can sometimes be challenging, but not impossible to correct. Just as with your computer at home, sometimes simply updating the software is all that is necessary. Sync is a software program which can...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...