Q: Why would one cylinder not get spark on my 1998 Ford Escort

asked by on

1 cyl '98 ford escort lx no spark. other 3 cylinders fire strong and normal. new plugs and wires-both tested. coil pack tests good. harness plug (to coil pack) ctr pin failed 10 v test has 33 ohms of resistance. the lead goes to the ignition switch and into the plastic housed actual switching mechanism. I suspect this switch mechanism. Can you confirm?

4/11 I've removed the plastic switch mechanism from the ignition lock cylinder and now the spark on #1 cyl is intermittent. My car has 175000 miles.
My car has an automatic transmission.

Hello. If you are getting good spark out of the other 3 wires and not that one in particular then that is typically a coil issue. Your ignition system uses the waste spark method meaning two plugs always fire together, which means if the plug associated with the one that is not firing is firing fine then the coil is usually the issue. It can have an electrical issue associated with this but that would affect the spark on two plugs. If that was the case then you typically have an issue with the vehicles computer.

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. Why would one cylinder not get spark on my 1998 Ford Escort

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: Misfire caused bad o2 sensor?

As you may know the oxygen sensors which are part of your emissions system read exhaust gases to determine whether or not the appropriate amount of oxygen is present in the exhaust. Based upon this reading, this information is relayed...

Q: I want to do a muffler delete on my car.

Hi there. Removing a muffler is illegal on vehicles with gasoline engines that need to pass emissions in counties that suppress the emissions law. For counties that do not enforce the emission law, meaning there is no emission testing required,...

Q: Odometer,speedometer,temperature window's switch not working and shift stick stuck

This is a difficult set of symptoms to diagnose without more detail, however it sounds like you may have an electrical short somewhere causing the gauges and switches to fail. I would suggest having an expert from YourMechanic come to...

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.