AStanE
Member
2014 Hemi with ~50k miles on it. Long story short, I felt a slight vibration while driving home on interstate a few weeks back, was very subtle, and I chocked it up to buildup inside my rims as it's been a mess here lately. Next day my wife takes it for a drive and mentions it's really "bouncy". I looked it over that night and found no real issues.
Another day later I'm driving to work and it starts shuddering/bucking and the CEL is flashing. I luckily limped it into parking lot and killed it. Had my dad scan it and it threw codes 0300(rdm mis), 0307(cyl 7 mis), and 0700(trans ctrl sys malfun)... Reset them and tried starting the thing again and it wouldn't run well, I struggle to say it ran at all really, just chugged and died right after ignition.
After looking those codes up I decided to throw a little $ at it and replaced the coil on #7; and I also pulled the battery overnight, to load test it(was healthy) and let things die. Didn't help at all, engine still wouldn't start, and despite having a flashing CEL it then showed no codes whatsoever.
Decided to try another friend's scan tool, but it showed no codes, either. Called a local mechanic who brought his scanner out and, after running the scan believes it to be a "computer", based on fact that he couldn't communicate with some modules. He didn't mention if he saw any other codes.
I took the TIPM out a few days ago and thoroughly looked all the wiring connections over for signs of issues. Found nothing. Cleaned all the connections and then took the TIPM itself apart to inspect and thoroughly/carefully clean the board.. It looked sound. I didn't see any terminals that were super dirty or corroded anywhere. I tested each and every serviceable relay and they all worked; all fuses were clean and tested out good as well. Put that all back together and tried starting again, but got nowhere.
Pulled the fuel supply line to injectors and cycled ignition to see if I was getting flow, it pumped what looked like a very strong volume into a bucket. Obviously this isn't a performance test, but the volume should've been enough to start the engine at least. Hooked fuel lines back up and it still wouldn't start though.
Ended up using a very small, almost non-existent, snort of starting fluid in the air filter just to see if it changed the cranking characteristics; it started, ran smooth for 3-4 seconds, then shuttered like before and died. It did run long enough to start registering codes now though, and is showing a 0027 for the bank 1 exhaust valve solenoid performance/range. But still won't start up and run when cleared out, it just chugs essentially.
All over the place here obviously, but is it possible one of my cats is damaged from the misfiring, and now has the engine bottled up? Wouldn't it throw O2 sensor-related codes if that cat was plugged due to out-of-range readings? I was going to swap two coils and look at those plugs too, but haven't yet just because my thoughts were that one cylinder missing should likely still let the engine start and run poorly, not? Also wondered if that injector for cylinder 7 might have failed open too, and the engine is contending with severe flooding.. I keep thinking back to the 0700 transmission code too, wondering if it that's a cause or symptom.
Another day later I'm driving to work and it starts shuddering/bucking and the CEL is flashing. I luckily limped it into parking lot and killed it. Had my dad scan it and it threw codes 0300(rdm mis), 0307(cyl 7 mis), and 0700(trans ctrl sys malfun)... Reset them and tried starting the thing again and it wouldn't run well, I struggle to say it ran at all really, just chugged and died right after ignition.
After looking those codes up I decided to throw a little $ at it and replaced the coil on #7; and I also pulled the battery overnight, to load test it(was healthy) and let things die. Didn't help at all, engine still wouldn't start, and despite having a flashing CEL it then showed no codes whatsoever.
Decided to try another friend's scan tool, but it showed no codes, either. Called a local mechanic who brought his scanner out and, after running the scan believes it to be a "computer", based on fact that he couldn't communicate with some modules. He didn't mention if he saw any other codes.
I took the TIPM out a few days ago and thoroughly looked all the wiring connections over for signs of issues. Found nothing. Cleaned all the connections and then took the TIPM itself apart to inspect and thoroughly/carefully clean the board.. It looked sound. I didn't see any terminals that were super dirty or corroded anywhere. I tested each and every serviceable relay and they all worked; all fuses were clean and tested out good as well. Put that all back together and tried starting again, but got nowhere.
Pulled the fuel supply line to injectors and cycled ignition to see if I was getting flow, it pumped what looked like a very strong volume into a bucket. Obviously this isn't a performance test, but the volume should've been enough to start the engine at least. Hooked fuel lines back up and it still wouldn't start though.
Ended up using a very small, almost non-existent, snort of starting fluid in the air filter just to see if it changed the cranking characteristics; it started, ran smooth for 3-4 seconds, then shuttered like before and died. It did run long enough to start registering codes now though, and is showing a 0027 for the bank 1 exhaust valve solenoid performance/range. But still won't start up and run when cleared out, it just chugs essentially.
All over the place here obviously, but is it possible one of my cats is damaged from the misfiring, and now has the engine bottled up? Wouldn't it throw O2 sensor-related codes if that cat was plugged due to out-of-range readings? I was going to swap two coils and look at those plugs too, but haven't yet just because my thoughts were that one cylinder missing should likely still let the engine start and run poorly, not? Also wondered if that injector for cylinder 7 might have failed open too, and the engine is contending with severe flooding.. I keep thinking back to the 0700 transmission code too, wondering if it that's a cause or symptom.