1999 dodge ram 2500 5.9

Asked by Apr 29, 2013 at 09:24 PM about the 1999 Dodge Ram 2500 4 Dr Laramie SLT Extended Cab LB

Question type: Maintenance & Repair

i replace the crank cam sensors and fuel pump the truck will only start when u spray carb cleaner in the throttle body then when its started it runs fine but when u shut it off and try to start it up it wont start. and it has no security system and no chip in the key. but when u first turn on the head lights flash on and off.

1 Answer

101,575

Check your fuel pressure regulator. Check your fuel rail pressure too. Turn the key to "On" and let the fuel pump run a few seconds. The pressure should be around 50 PSI. The engine needs a rich mixture to start and if the pressure is not up, it's not getting it.

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