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300c Cutting out while driving - Help!
I'm having this problem where my 300c 5.7 Hemi keeps seemingly cutting out while driving. Best way to describe the problem is the RPM needle drops to zero for a second, engine stops instantly, then re-starts and carries on. Causes a massive jerk effect as engine power is momentarily on / off. Also, it occasional just stalls when I come upto roundabouts or traffic lights. Problem does not necessary occur under acceleration, can occur when cruise control is on, or when braking. Problem is random also, one day I can do 300 miles with no errors or problems. Next day, it can do it 5-6 times over 10 miles. Then it can run fine with no faults or issues for another 10 days. Makes a chime every time the RPM needle drops off. It does not always cause the engine management light to come on though.
I took it into my local non-Chyrsler dealer first who scanned the fault code(s) which came back as follows:
Gearbox - Diagnose MT/AT - Fault Memory - U0100 - Lost Communication. Control module part number 04692392AK. Hardware version 0.547. Diagnostic version: 53.
eOBD - Fault Memory - U0100 - Lost Communication with ECM / PCM A
P0700 - Transmission Control System (MIL Request)
They referred me to my Chrysler dealer who again scanned the engine management fault. The dealer carried out a flash update on the transmission control system and told me to keep an eye on the problem. Does not appear to have fixed the problem.
Last edited by Crazy_Mayes; 09-07-2014 at 01:09 PM.