Truck won't stay running

Asked by Jun 30, 2017 at 09:41 PM about the 2003 Dodge Ram 1500

Question type: Maintenance & Repair

I have a 03 Dodge Ram 1500 4.7. Driving down road at
35-40 mph the truck will shut off. You have to turn switch
off and crank it back up an it will run again until you go
35-40 mph. What causes this?(I have changed and check
oil, changed transmission fuild an filters, replaced
pressure sensor on transmission, replaced throttle flow
sensor and changed gas cap and cleaned 02 sensors)

2 Answers

83,315

Have you checked the fuel pressure?May be fuel pump going out or clogged fuel filter.

I had the same issue. I changed the cam sensor, crank sensor and most coil packs. My issue was a broken valve spring. In my case the #8. Tore apart, changed them all. Problem solved.

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