First post, so I hope I'm making this right. I have a 96 Grand Cherokee Laredo with the 4.0 engine. A while back when it used to be running, the engine would start and run perfectly until it would randomly shut off. It doesn't even studder or cough, just quickly and quietly shuts off as if I turned off the engine. I would have to wait a while before the engine would start. It got worse until it won't start anymore. Now, my current issue is that my engine would crank perfectly, but won't even fire. When doing the OBDI tests, I got a code 12, 11, and 55. Using an OBDII reader yields intermittent loss of cam or crank signal.
So I replaced both the distributor pickup coil and the crank position sensor, but I still have the same issue. OBDI tests yields the same results, and I don't have the OBD read with me right now. I'm stumped right now since it's my first time dealing with this issue and I'm new to Jeep maintenance. I tried Googling the issue and people said just to replace the CPS and it would run again. I feel like I'm missing something simple, but I just can't figure it out. Any suggestions?
So I replaced both the distributor pickup coil and the crank position sensor, but I still have the same issue. OBDI tests yields the same results, and I don't have the OBD read with me right now. I'm stumped right now since it's my first time dealing with this issue and I'm new to Jeep maintenance. I tried Googling the issue and people said just to replace the CPS and it would run again. I feel like I'm missing something simple, but I just can't figure it out. Any suggestions?