Q: Pops and misfires, what would make this happen?

asked by on

My 2006 Honda Pilot will randomly start misfiring and making noise, then go back to normal. Sometimes I have to turn it off and then back on to get it to stop. The Check Engine light will pop up and the car starts running rough. This engine, along with the entire car, is at 87,000 miles. I worry that if I bring it in for repair, they’ll tear the motor out and replace it, costing me a few thousand dollars. Is it dangerous to drive my car like this? Is there any chance of repairing it at this point?

The Check Engine light coming on is an indication that continued operation could cause damage. The engine could also emit excessive emissions. You should have the vehicle’s computer scanned for codes. This test will confirm that when the light is on and the engine is running rough or misfiring with noise, it is the engine valve rockers sticking when sliding in and out of the valve control lock up. There is a Technical Service Bulletin (TSB) 07-070, dated 1/24/2012, that goes through a diagnostic test of the sticking rocker arms. The TSB computer scans check first for misfiring codes P0301 through P0306, with the noise in the engine. The engine valve rockers will have to be repaired or replaced as per the TSB to correct your problem. A trained mechanic, such as one from YourMechanic, can perform an engine misfire inspection and repair or replace parts as needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Pops and misfires, what would make this happen?

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: Engine light lids

The knock sensor is located on top of the engine beneath the intake manifold which must be removed to gain access. With regard to diagnostic trouble code P0325 that code does not mean the knock sensor has failed. All that...

Q: Battery light on dashboard?

The noise and burning smell is most likely from the alternator. Have the battery checked to make sure it is okay. Once that is done, check and replace the alternator if necessary. If you need some help with these checks,...

Q: Stutters under acceleration or load, fine at idle

If there are no codes for a random misfire on any cylinder, the ignition control module - what the ignition coils are plugged into - is known for causing your eact symptoms. It can cause intermittent misfires. I suggest having...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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.