Skip the auto shop - Our mechanics make house calls

Q: Missing on cyl 1,3,5.

asked by on

Replaced plugs , coil, CPI injector, rotor dist cap , cleaned ignition module and used di elec grease for good contact.check spark on all plugs and wires. No fuel leaks. Fuel pressure 62psi koeo operates at 56 psi. Pulled distributor checked gear and bushings all good. Plugs get black on left 3 cyl.1,3,5. Service engine soon light is on. Could it be crank sensor?

My car has 90000 miles.
My car has an automatic transmission.

A: Hello. No spark for an entire bank, or sid...

Hello. No spark for an entire bank, or side of the engine, can be caused by a few different things. If cylinders 1, 3, and 5 are all experiencing the same issue I would consider the possibility of a faulty ignition module or faulty spark plug wires. The ignition module controls the vehicle's spark timing and is one of the most important ignition system components. If it fails or has an issue it may cause all sorts of issues including misfires and no spark. If it has already been cleaned then I would move on to seeing if the module can be tested. Most auto parts will have some sort of tool for testing ignition modules and can help you figure out of the module is bad. It may also be possible that the spark plug wires that go to those cylinders are what is causing the issue. A resistance test can determine if they need to be replaced. If the service engine soon light has come on then there may be a trouble code present that may shed some light on what the issue may be. I would recommend having a professional technician, such as one from YourMechanic, come to your location to diagnose what the cause of your service light, and spark issues may be.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: No Start. Fuel delivery issue

Hi there, thanks for writing in about your 1993 Toyota Pickup. You should check all the relay connections to see if the wire connections are corroded and losing relay connections to the relays. This vehicle is known to get badly...

Q: Car locked up

Your vehicle likely lost steering and braking because your engine shut down. You lose all power steering and braking when your engine loses power. As for the warning lights in the dash, I would recommend scanning your vehicles computer with...

Q: How do I use the Instantaneous Fuel Economy setting?

The driver information center (DIC) provides a large amount of information to the driver. At any time, you can select what information you would like the DIC to display. To select the Instantaneous Fuel Economy setting, press the Menu button...

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...