GT350, it doesn’t look burnt in the exhaust at all which has me perplexed. The plugs were black and damp looking but they was no oil wiping off of them. It doesn’t appear to be burning oil either. It doesn’t smoke while idling or at start up or when you rev it hard in the garage at all.
I assumed at first that the engine had fouled those two plugs because I didn’t get the plug wires on all the way. Now I am wondering. I will drive it a couple more times and pull plugs to figure it out after that. I will go through all of them to make sure those are the only two and if the problem stays with those two cylinders then I know there is a larger problem. If it clears up on one or both then I will start trouble shooting the one cylinder that is the culprit.
1966 Mustang Ive had for 20 years. Mild built 289, 4-speed coupe. Runs strong but the rest of the car needs help!
Last edited by Sub_Elect; 06-15-2019 at 03:40 PM.