2002 Dodge Ram stops running every 10-15 minutes
I need some help troubleshooting my dodge ram. It shuts down after about 15 minutes of run time. The RPM needle bounces around erratically. If I disconnect the battery and wait 10 minutes it will start. I have checked the alternator, battery, fuel pump pressure on the fuel rail (45-50PSI), relays, CPS, and O2 sensors. - all okay. I let it idle for 10-15 minutes- same thing happens. You can hear the fuel pump relay switching and electrical noise in the engine. I pulled fuse number 19 (ECM) - electrical pulses stop. I then replaced the fuse and pulled fuse number 20(Ingition unlock run/start) and the problem stopped. I disconnect the battery for about 10 minutes and it starts up. I have pulled the control module(computer) as the next step for analysis by a friend. Does anyone have any other ideas? Of have you seen a similar issue - could it be the coils?
Last edited by AGI94; 05-27-2009 at 11:34 PM.