re 90 D150 d3.9 l - stalling and flooding issues (SOLVED)

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imtonydillard

Junior Member
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Aug 6, 2018
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Location
Texas
Ram Year
1990
Engine
3.9
My issue is my truck is 9 times out of 10 when I come to a stop. Sometimes I can get it to start immediately. Most of the time it take 5+ minutes and smells like it's flooded. BTW, this mostly happens when my truck is near empty. Not so likely to happen when i have a 1/2 tank or more of gas. Also, I parked uphill the other day and had a real hard time starting it. I put it in neutral and rolled it to as close as possible to level ground and got it to start. There's also been times when it stalled before I came to a full stop and I tried to roll start and no go.

My vac lines are all good. My throttle body has been rebuilt and I also have a new EGR valve.

Most of my research points to the fuel pump as the culprit. What are your thoughts? I went ahead and bought a new fuel pump but can find where the existing one is to replace it. HEEELLLPPP please. My Haynes manual is failing me.
 

DustyDog99

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Location
US
Ram Year
1985 D250, 1986 W150
Engine
1985:318-2bbl 1986:318-4bbl
Fuel pump is in the tank and is part of the sending unit. It does sound like the culprit.

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imtonydillard

imtonydillard

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Location
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1990
Engine
3.9
I replaced the fuel pump but can't get the truck to start. Any thoughts?
 
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imtonydillard

imtonydillard

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1990
Engine
3.9
When I turn the key on I hear a brief click and buzz in the engine compartment. I hear absolutely nothing when I from the fuel pump.

fuel pump module.jpg
 
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imtonydillard

imtonydillard

Junior Member
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Location
Texas
Ram Year
1990
Engine
3.9
I installed a new fuel pump from NAPA to replace the new fuel pump I bought from Auto Zone (last week) and it started immediately.

Lessons learned:
  • Take your time (had I done so I would not have broken the supply and return valves on the assembly)
  • Buy quality parts
  • Keep all receipts
  • Keep all part boxes (at least 6 months)

How I fixed my broken valves:
  • see pics
Forward Thinking:
  • I cut a hole in the bed of the truck where the assembly is located so that in the future I can remove and replace it in as little as 5 minutes.

IMG_2855.jpg

IMG_2856.jpg

IMG_2858.jpg

IMG_2859.jpg

truck.jpg
 
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