I find one cylinder(#3) does not work on my 91'Maxima. The engine and exhauster pipe vibrate and exhauster sound like "Pu Pu".

What is the most possibility? fule injector or anything else? Should I replace it or just clean it?

Can I still drive on high way with this vibration?

Thanks in advance.

 

I have the same problem with my engine. I tried everything like changing the spark plugs and wires, new cap and rotor, putting lucas oil. I still get the misfire, vibration and the dead cyclinder? What can be the cause (injector)?

 

Probably a bad injector...

Especially if there's new plugs, cap and rotor, etc. Injector is what I'd think.

 

Well I dont know about you all. But when my car missfired and had no compression through Cyl#5 I took it to the dealer and they found that there wasnt a clamp ring that goes on the spark plug that was making it misfire. I didnt do this Precision tune did. I was mad. THey paid. But make sure all the things are on the Spark plugs like they are suppose to be. Just my .02 cents.