94 L65 (VIN F) STALLS WHEN WARM

  • Tiny
  • Davewithdiesel
  • 1994 Chevrolet Truck
  • 250,000 miles

My 94 chevy diesel 6.5 turbo diesel keeps stalling I have relocated the PMD from a plate above the engine to down into the bumper It helped for about 6 months or so but now it is doing it again in the past there was a small leak by the fuel filter I replaced all the low pressure fuel lines, the fuel filter and fuel pump relay, the last time it stalled the pickup pump fuel bowl the pickup pump had a loose wire I purged the air and got it about a block and it stalled again but this time the pickup was pumping
is there a way to test the fuel shutoff solenoid? Is the pmd finally finished can I test it I have a new one but don't want to put it in until I get this entire problem resolved I also don't get any reading on my temp gauge I tested the circuit by grounding the green wire and it did read max hotI then replaced the coolant temp sensor with no change I have good ground at the casing I even grounded the casing connected the green wire and put it in boiling water and the gauge still read low. I have tried to follow wiring diagrams but seem to be stuck with both problems
Thaks

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Thursday, May 17th, 2012 AT 7:55 AM

7 Replies

  • Tiny
  • rasmataz
  • Member

Does it fire back up easily when it stalls if so the injection pump is failing-if you have to wait check the PMD

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Thursday, May 17th, 2012 AT 8:55 AM
  • Tiny
  • Davewithdiesel
  • Member

When I moved the old pmd just bought time is that why the move made the problem stop for a while? Does it have to wait everytime it stalls to be the pmd? And the pmd is not as hot now that it is moved after a stall

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Thursday, May 17th, 2012 AT 5:35 PM
  • Tiny
  • rasmataz
  • Member

It points to the PMD if you have to wait-

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Thursday, May 17th, 2012 AT 9:46 PM
  • Tiny
  • Davewithdiesel
  • Member

Should I put heatsink compound between the pmd and the mounting plate or anything between there
?

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Thursday, May 17th, 2012 AT 9:54 PM
  • Tiny
  • rasmataz
  • Member

If you think it will work try it and see what happens

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Thursday, May 17th, 2012 AT 10:05 PM
  • Tiny
  • Davewithdiesel
  • Member

Installed new pmd seems to run great feels like more power Going for another test drive in a few but noticed the fuel gauge rises and falls with the sloshing of the fuel when I punch it or hit the breaks am I looking at the baffle needing to be replaced? Or am I lucky enough to have to replace the fuel tank senting unit
float

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Friday, May 18th, 2012 AT 1:41 AM
  • Tiny
  • Davewithdiesel
  • Member

It ran for about an hour filled the tank and started to head home and it stalled again started with in a min of it stalliing twice more stalled on the way home I think maybe the enjection pump is on iits way too
?

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Friday, May 18th, 2012 AT 2:53 AM

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