Skip the auto shop - Our mechanics make house calls

Q: Missing during idling

asked by on

My car has gone 115,000 miles. Lately, I've noticed that it's missing during idling. It also occurs when I attempt to increase speed or when I go uphill. It usually happens with the throttle is full. I've tried to take it out of the overdrive. I also tried using fuel treatment. The problem is still present. What do you suggest I do?

Hello. It sounds like the spark plugs, spark plug wires, and coil packs need to be replaced. The mileage on the truck indicates that it is due for a tune-up and the coolant and transmission fluid should be serviced, if that hasn’t already been done. This should solve your misfire issue. I would recommend that you have a 100,000 mile service done and a tune-up. Have a certified technician, like one from YourMechanic, assist you with this.

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: Overdrive won't engage when going uphill, revs high

Hello. If the problem comes and goes it may be one of the shift solenoids. It is common for these to fail and have problems causing them to stick which will cause this. I typically start by checking the computer...

Q: Overheating 1993 Ford Mustang

Hi - no, replacing the catalytic converter will not, of itself, cause engine overheating. Conversely, a clogged catalytic converter is a great fire risk, because it will itself get quite hot. Your overheating problem is possibly due to a clogged...

Q: Check engine running rough

Hello there, many components which can cause the vehicle to run rough like this. The most common would be the MAF sensor, vacuum leak, spark plugs and wires, low oil level, or mechanical engine damage. I'd recommend having the vehicle...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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.