2007 Audi A6 4.2 Misfire Cylinders 1 and 5
#1
2007 Audi A6 4.2 Misfire Cylinders 1 and 5
Hello,
I'm trying to figure out what is going on with my Audi A6 4.2. I have replaced the coils and plugs and cylinders 1 and 5 are still missing. I was hoping some one may have some insight to this problem. I don't want to keep throwing money at things that may not fix it. If you have anything that may help it would be much appreciated.
Thanks Justen
I'm trying to figure out what is going on with my Audi A6 4.2. I have replaced the coils and plugs and cylinders 1 and 5 are still missing. I was hoping some one may have some insight to this problem. I don't want to keep throwing money at things that may not fix it. If you have anything that may help it would be much appreciated.
Thanks Justen
#2
AudiWorld Super User
Is it a dead miss? Or miss under load? Injectors. Carbon issue on the intake valves. Or a lean condition at the front of the intake manifold, like an air leak, 1 and 5 are right up front, so if say the intake manifold runner flap mechanism wore out made a vacuum leak, the first 2 cylinders there are going to get leaned out more the the rest, so it misfires on them. Just some ideas for you.
Last edited by Prospeeder; 08-11-2016 at 09:14 PM.
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