Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Hi I have this 2014 Jeep Grand Cherokee 3.6L setting P0305 code on cold starts according to freeze frame. It is very difficult to duplicate as we have started it numerous times cold and always runs fine. What is a good way to navigate this diag. Spark plugs and coil have been replaced, same problem.
My first thought was also coolant leaking into the cylinder.
Because it's a cold start misfire, I feel like this test would be most effective performed before the engine is started with a camera in the cylinder.
I have finally removed bank 1 cyl head cover and found one of the intake cam lobes on cyl 5 is completely worn off. Interestingly cyl 5 had slightly higher compression that rest, 170 vs 150. The compression difference doesn't really make sense to me! But it needs repaired nontheless. Is it advisable to put a cam in this motor at 106k miles? With the cam damage as it is, obviously there is metal somewhere.
Topic Author
