Ok, I've had a misfire for quite some time. I changed the spark plugs and wires. I've used a multi meter on all of those components and I still am having a problem. I tracked it down to cylinder #5. I unpluged the spark plug wire and it doesn't misfire anymore. You can just tell that it is missing that cylinder. So what would be my next plan of attaqck to get the mis out?
What are you referring to as a misfire? I always thought of a misfire
as the air/fuel mixture not igniting....which would feel the same as
a plug wire being removed. But, you say it feels different with
the wire removed.
Is it possible that you have too much valve lash? That could account for the noise and would explain why the noise goes away when you remove the plug wire. If so, the adjustment for it is fairly easy, though messy. Might want to consider having a good mechanic do it if you have not done it before because you can over tighten the rocker arms and end up burning your valve seats.
Originally Posted by JustinD
It is like a ticking noise. Like it is detonating to soon or too late.
try rerouting the #5 & #7 ignition wires. These two cylinders are adjacent to each other (obviously) but are also the only two cylinders that are consecutive in the firing order ( 1-8-4-3-6-5-7-2), this is known to be a problem at times on many cars. The spark from one wire affects the spark on the next pulse in the next wire.
So, you want me to move them away from eachother? They are all wireloomed up and not touching. But just to be safe, I can put them away from eachother. If this doesn't work do you have any other ideas of what it could be. I'm fresh out.
in the wire loom seperatoes they are also next to each other. at the least move the away from each other by changing their locations in the seperators and best case is to try to reroute both wires in some fashion to avoid as much as possible the #5 & #7 being close to each other. I know there are limitations how far you can keep the wires seperated but do what you can