Skip the auto shop - Our mechanics make house calls

Q: Engine mifiring at higher RPMs, tachometer spiking up

asked by on

The engine in my car starts misfiring when higher RPMs are reached. At 2200 RPM on average, the issue happens and the tachometer starts spiking up. As I was told the problem might be the distributor, I had it replaced but the issue remained. I had the crank sensor replaced as well. The problem still persists. Do you have any idea what is the cause and what I should check next? Thanks.

Try to replace the ignition module and coil which is mounted top right side of the motor. The ignition module supplies the tach signal and the coil supplies the spark to the plugs. It is a good idea to replace both as a set since a coil can burn out the new module.

This should fix the problem. Make sure you have a fresh set of wires and plugs also with a new distributor cap and rotor. If you need help with this contact a certified mechanic who can diagnose the cause of your misfire and fix it accordingly.

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: Can i swap à 4.3 chevy blazer four wheel drive into my 4.3 gmc Jimmy two wheel drive? 1995 Chevy Blazer

Hi - yes, the engine will bolt up, although some swapping of manifolds, accessory mounts, etc. may be required. The bigger issue is compatibility with engine electronics, which will include the transmission controller. Your are best off if you can...

Q: Step by step troubleshooting of DTC fault codes

Each of these codes are for different components and since you swapped the motor with a different size motor than what the car had may be a big problem. You would need to have each code diagnosed separately to see...

Q: Check Engine Light appears and disappears, engine misfires occasionally

Many common faults will cause misfires on your 2006 Honda Pilot. Without knowing what check engine light your vehicle has I can only offer general advice on the issue. The most common causes are spark plugs, plug wires, MAF sensor,...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...