Help... Bad miss
Thread Starter
Pro
Joined: Sep 1999
Posts: 545
Likes: 0
From: San Jose, Ca./Kona, Hawaii
Help... Bad miss
Last night while just crusing along, the car started to miss badly.
First of all, I determined the cylinder in question is drivers side, second back from the firewall. Not sure of the cyl #. The header pipe is colder than the other seven.
I checked spark. Getting plenty. Shocked myself checking
Checked the plug. Looks fine. Nothing broken. Charcol grey color.
Then I checked the fuel injector. I switched with another hoping the problem would migrate to another cylinder so I could just replace the injector... NOT! Same problem, same cylinder.
So, I've determined is it most likely not a fuel or spark issue to that cylinder.
What does that leave me with? Valve or spring issue?
I am getting NO trouble codes.
I had heads and cam done about six months ago at AA corvette....
First of all, I determined the cylinder in question is drivers side, second back from the firewall. Not sure of the cyl #. The header pipe is colder than the other seven.
I checked spark. Getting plenty. Shocked myself checking
Checked the plug. Looks fine. Nothing broken. Charcol grey color.
Then I checked the fuel injector. I switched with another hoping the problem would migrate to another cylinder so I could just replace the injector... NOT! Same problem, same cylinder.
So, I've determined is it most likely not a fuel or spark issue to that cylinder.
What does that leave me with? Valve or spring issue?
I am getting NO trouble codes.
I had heads and cam done about six months ago at AA corvette....
Le Mans Master
Joined: Jan 2000
Posts: 6,725
Likes: 0
From: South Bend IN
It could be as simple as a faulty sparkplug. 
I've seen a used plug from another cylinder repeat the problem when swapped. Don't ask me why but we went through this on my sons f body. 
I've seen a used plug from another cylinder repeat the problem when swapped. Don't ask me why but we went through this on my sons f body.
Last edited by Dave00C5; Oct 22, 2004 at 07:22 PM.
