Skip the auto shop - Our mechanics make house calls

Q: Engine light on, misfire cylinder 6

asked by on

Replaced coil pack, injector, spark plugs, wires,ran bg44k fuel cleaner thru fuel,compression test on cylinder six is 140 others is 150. Still rough idle and engine light on but when you take off from a stand still engine light blink.

My car has 152000 miles.
My car has an automatic transmission.

A: The rough idle may be related to the low co...

The rough idle may be related to the low compression in cylinder #6. Low compression will continue to cause a misfire until it is corrected. This will cause detonation and timing problems which is what indirectly causes the misfire. I would recommend having an expert from YourMechanic come to your home to inspect the misfiring issue and test the compression, as this could be a sign of a potentially larger issue.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: check engine light is on

A fault code p0304 is typically caused by a faulty plug or a failed ignition coil. If it has been quite a while since there has been a tune up done, I would start there. Many times a misfire can...

Q: My truck won't fully turn on

It sounds like you may have a fuel supply issue preventing the engine from running completely on it's own when you start it. In the case of a fuel delivery problem, this may be related to low fuel pressure, faulty...

Q: Idles fine when reving the engine it makes a popping noise back fire from tail pipe

The backfire can be can be caused by a few possibilities. From what you've described, about the popping out of the tailpipe, you either have excessive amounts of air getting into the exhaust, a bad exhaust valve, or a spring...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.