Cylinder 2 misfire
Posted: Tue Jun 23, 2020 12:03 am
Hello all, I’m new to this forum and have recently purchased a 2012 Caprice w/ the L77.
I’ve researched my issue up and down and found similar problems but not exact so I thought I’d try and get some advice or hear from someone who has experienced something similar.
When i bought my caprice it had a misfire on cylinder 2 that would throw a CEL (P0302) within minutes of idle.
I went the route of replacing all the spark plugs (old ones were pretty dirty) and wires, the ignition coil for cylinder 2, and the harmonic balancer (it was wobbling).
The misfire is still there but it throws a CEL more rarely and it seems to drive just fine. You can definitely feel and hear the misfire at idle.
From what I’ve read cylinder 2 does not have the DoD and I don’t hear any ticking, but I’m really at a loss right now.
Any advice would be much appreciated. Thank you.
I’ve researched my issue up and down and found similar problems but not exact so I thought I’d try and get some advice or hear from someone who has experienced something similar.
When i bought my caprice it had a misfire on cylinder 2 that would throw a CEL (P0302) within minutes of idle.
I went the route of replacing all the spark plugs (old ones were pretty dirty) and wires, the ignition coil for cylinder 2, and the harmonic balancer (it was wobbling).
The misfire is still there but it throws a CEL more rarely and it seems to drive just fine. You can definitely feel and hear the misfire at idle.
From what I’ve read cylinder 2 does not have the DoD and I don’t hear any ticking, but I’m really at a loss right now.
Any advice would be much appreciated. Thank you.