Ok this is the problem I am experiencing and before I just start replacing parts I thought someone would have an idea or two of what is could be. My guess is the electric fuel pump.

Ramcharger sometimes starts right up and runs. It will run fine until I shut it off. If I restart within 3-5 minutes it usually starts up fine. If I wait 10-15 minutes then its a high probability she will not start. If turns over and acts like she wants to start but will die quickly then after a few attempts it will just crank. If I then let her sit until cold sometimes she will start right away other times she will just turn over. OK any help on this one?

Could be a fuel pump, or a filter.

Might also be in the ignition, CPS, coil, etc.

Have you cycled the key (on-off, on-off, on-off, on) and read the codes you get from the check engine light flashes?

12 is pretty normal, and 55 is end of codes.

CODE Description of Trouble Code

11 Timing belt skipped 1 tooth or more from initial learned value, Intermittent loss of either camshaft or crankshaft position sensor, No crank reference signal detected during engine cranking
12 Direct battery input to PCM was disconnected within the last 50 key-on cycles (normal)
13 No change in MAP from start to run
14 MAP sensor voltage too low
15 No vehicle speed sensor signal
17 Closed loop temp not reached or engine cold too long
21 02s sensor problem (oxygen sensor), upstream or down stream
22 Engine coolant temp sensor out of range
23 Intake air temp sensor out of range
24 Throttle Position sensor out of range
25 Idle air control motor circuits, target idle not reached (+/- 200),vacuum leak found
27 Injector control circuit
31 Evap purge flow monitor failure or evap solenoid circuit
32 EGR system failure
33 A/C clutch relay circuit
34 Speed control Solenoid circuits
35 Rad Fan control relay circuit
37 Torque converter clutch solenoid CKT or park/neutral switch failure
41 Generator field not switching properly
42 Fuel pump relay control ckt, Auto shutdown relay control ckt, No ASD relay output voltage at PCM, Fuel level sending unit volts out of range, Fuel level unit No change over miles
43 Multiple/ single cylinder misfire
44 Battery temp sensor volts out of range
46 Charging system voltage too low
51 Fuel system lean
52 Fuel system rich
53 Internal control failure
54 No Cam signal at PCM
55 End of error messages (If you get this only, no errors were found)
62 PCM failure SRI mile not stored
63 PCM Failure EEPROM write denied
64 Catalytic Converter Efficiency Failure
65 Power steering switch failure

I will try the on-off sequence and see what code or codes come up