Skip the auto shop - Our mechanics make house calls

Q: Hi James, engine lite on, cylinder misfire on 1, 3, 5, and 6. recently replaced all plugs and wires. question is does it do any go

asked by on

Hi James, engine lite on, cylinder misfire on 1, 3, 5, and 6. recently replaced all plugs and wires. question is does it do any good to replace say 5 and 6 immediately and the other two soon or am i wasting time? 5 and 6 are feasible to get to and do myself without removing manifold (Escape Ford 2004). basically am i doing any good or helping in replacing 2 of the 4 initiall? thanks for your time and any info

My car has 145000 miles.
My car has an automatic transmission.

Hi there. What led you to the need to replace those mentioned parts? What were the diagnostic steps to determine the fault or faults? When a misfire code is stored, that means that the ECM detected a slow down on the combustion stroke of those cylinders specific to the codes stored. What caused the misfire? The ECM does not know why this occurred, only that it has detected the occurrence. There could be a whole host of causes from electrical to fuel to spark to a sensor to the ECM to an internal mechanical fault. The simple fact is that without a proper inspection using proper diagnostic tools and processes, the attempted repairs can become very expensive. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a check engine light inspection.

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!
  • Home
  • Questions
  • Hi James, engine lite on, cylinder misfire on 1, 3, 5, and 6. recently replaced all plugs and wires. question is does it do any go

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: Yourmechanic does not service my area (Erin,TN 37061). Can you give me an estimate?

The cost will depend on several factors, one of which is whether you have the double overhead cam (DOHC) version of the 5.4L engine, that is 4 valves per cylinder. If you have the "regular" 5.4L engine, it takes 3.1...

Q: replaced brake shoes in the back (they are drums,) but now they dont work...

Hello there, thank you for asking about your 2001 Ford Escape. You may have put in a spring incorrectly or did not adjust them tight enough before putting on the drum. If you think there is a missing spring then...

Q: Battery light on while driving, lost power- water pump and power steering still working

You have two serpentine belts: One for the power steering, and the other is for the a/c and alternator. You must have broke the belt to the alternator and a/c. Have the components checked to see what caused the belt...

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...
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...