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About 3 months ago i got check engine light for misfires 1,3,5 i switched all the spark plug and problem was gone and about 5 days ago i got misfires on 1,3,4,5 changed all ignition coils with OEMs and got the misfires again but only for 1, 3 ,4 when idling it shakes a little not really a shake but like a rumble anyone know what this could be? Thanks. 6 is closest to driver
Edit: please don't reply if you're going to be like the dude who replied first. I know to look up causes for misfires but I posted this in a w204 sub forum for a reason
Last edited by Dirty Dan; Aug 23, 2019 at 08:08 PM.
Do yourself and us a huge favor, misfires cover a wide variety causes in engines------do a search for misfires, then spend a month reading all the information on potential causes---have you forund the cause of your misfires??
Did you torque the spark plugs properly with a torque wrench? And did you make sure the coils are on fully? Did you use OEM plugs or aftermarket plugs?
Did you torque the spark plugs properly with a torque wrench? And did you make sure the coils are on fully? Did you use OEM plugs or aftermarket plugs?
No. fuel injectors are good. Engine compression is good. Can't seem to find the problem it's driving me nuts about to just give up and take it to the dealership
No. fuel injectors are good. Engine compression is good. Can't seem to find the problem it's driving me nuts about to just give up and take it to the dealership
You might have bad coils, as I said unless u tried, swap the misfiring cylinders coils with the non misfiring cylinders coils. Mark them! If the misfire moves on all of them you have bad coils.
You might have bad coils, as I said unless u tried, swap the misfiring cylinders coils with the non misfiring cylinders coils. Mark them! If the misfire moves on all of them you have bad coils.
Well now everything is misfiring but cylinder 6 the new coils were just installed on all 6 you think they'd go out that quickly? I'll try it though thanks
Well now everything is misfiring but cylinder 6 the new coils were just installed on all 6 you think they'd go out that quickly? I'll try it though thanks
You replaced both the spark plugs AND the ignition coils?? If everything is misfiring there’s probably something to do with how you did things.
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