Hi, this is a work in progress. There is so much great info on this forum , but sometimes it's hard to find exactly what you want . I'm trying to put together a checklist of sorts to help narrow down starting problems and possible solutions. This is what I have so far, any additions or corrections would be appreciated.



CRANKS, NO START
check RCM soldier points and relays and fuses
check spark at plugs
check fuel pressure
no pressure , replace fuel pump
low pressure, rplace fuel filter
replace crankshaft sensor
replace camshaft sensor

SPOILER GOES UP ON AND OTHER STRANGE ELECTRICAL ISSUES
check battery voltage, should be 12.33v or higher
check battery ground cable and connection
check RCM soldier points and relays and fuses

CRANKS A COUPLE OF TIMES AND THEN WON'T CRANK
possible skreem issue
disconnect battery, reconnect , retry start
check wire from ring around ignition to skreem
reset skreem .turn key with battery disconnected to drain capacitors. Then connect battery, turn key to on position for several minutes, things reprogramming themselves, then turn key off for one minute. retry start

STARTER FAILS TO OPERATE
battery discharged or faulty.
check pulse module. pulse module is located inside the underhood fuse panel, turning the ignition key to 'start' tells it to engage the starter solenoid
check RCM soldier points and relays and fuses
starter solenoid faulty.
starter motor faulty.
starting circuit wiring faulty.
ignition switch faulty.
park/neutral position switch faulty or misadjusted.

STARTS, RUNS A FEW MINUTES THEN DIES
check RCM
check fuel pump
check fuel filter

 

On the "STARTER FAILS TO OPERATE", add in the pulse module.
( the pulse module is located inside the underhood fuse panel, turning the ignition key to 'start' tells it to engage the starter solenoid, it then is told by the PTCM to disengage when the engine is started.
IE, you can just bump the key to start then it's automatic from there. If you continue to hold the key in start after the engine is running, the starter will disengage anyway )

 

Riddle me this.. brand new AND good battery.. starter only works with a booster starter hooked up.. runs fine after starting..

 

Starter or solenoid requires too many amps maybe ?
Partially open cell in the 'new' battery ?
Swap battery with one of your fleet that is working right and see what happens.

 

Actually it's an issue with Vickie's car.. 1st new battery was exchanged.. after replacing the water pump "out of the blue" it started this problem.. working 100% fine till trying to start after repair. Ground cable replaced etc. Might have to throw in the towel and replace the starter.. even though it works fine with "boosted" voltage and amps..

 

did you try swapping the pulse module ?

 

Not yet.. it had been mentioned to her.. She bought that new Jeep and I think the SRT6 is now just waiting for attention.. LOL.

 

Can you just swap a pulse module or does it have to be programmed to your car ?

 

It can be swapped, it's a dumb module. ( kinda like me )
As far as I know, the only ones requiring any kind of programming are the PTCM, BCM, and SKREEM, and I 'think' the PTCM will work, it just has the tune parameters in it.

 

LOL.. just happens to be a topic on her facebook page right now.. Problem is another Crossfire to stop by and test with it..