fuel shut off solinoid
 

Just seeing if anyone has found a fuel shut off solenoid that is good and actually lasts. My stock solenoid fails when the engine warms up (after driving about an hour and turning it off to get fuel), I ordered a new solenoid from Pensacola diesel and put it in on a Tuesday at about noon, drove the truck to about 4 different places turning off the truck each time and restarted with no problems, the next morning the truck would not start until I put my old solenoid back in. I called Pensacola diesel and they sent me a replacement, I put that one in and the truck would not even start, so what is a good brand or distributor of a good fuel shut off solenoid? I appreciate the help

The fuel shut off solenoid is a silver cylinder on top of the IP with 2 wires exiting it about the diameter of a quarter-is that what you have been replacing?

I ask because once they fail they are dead forever.

I think you are blaming the wrong part-PMD's are much more common failure items and cause the same symptoms including stalling.

Ignition switches also fail,do you ever notice a dead instrument cluster but radio/blower motor keep working fine?

PMD-pump mounted driver
FSD fuel solenoid driver

Both PMD/FSD are the same part and must be mounted to the side of the injection pump or remotely mounted on an aluminum heatsink with heat transfer paste/pad between the PMD the aluminum heatsink and mounting screws torqued to 20-25 inch pounds.

Make sure that a PMD resistor is installed in the PMD harness cavity and get a 6" extension harness so that PMD combo can be mounted outside the engine compartment.

Behind/under the frt bumper is the preferred mounting location with behind the grill on a rad support next in line.

Mounting a remote PMD anywhere under the hood is a very bad option-heatsoak after engine shutdown kills them-keep the PMD combo at ambient outside temps at all times for longest life.

Thanks for the reply racer, It is the fuel shut off solenoid that I have been trying to replace. PMD is new and relocated inside the front grille, ignition switch is fine, no dead gauges (yet). If I drive the truck and let it get warmed up then shut it off, sometimes it will not start until i either let it cool down or tap on the solenoid, both of the new solenoids that I ordered would not even let truck start hot or cold. Since I jumped my LP it has gotten better (with my old solenoid) but i still want to be sure it is going to start all of the time like it should.

Ok
Your symptoms of no start hot or hard start hot are more like a worn out IP.

Next time the trouble occurs try pouring water over the IP and then starting.
The water will shrink the housing enough that pressure build better and it will start/run at cranking speed.

If starts a lot better the IP is shot.

I will hive it a shot. Thanks for the info

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I forgot to mention that the first time I thought it was the fuel shut off, the truck just died after fueling up then running down the road for about 5min. loosened the shut off solenoid and it fired right back up. do you still think it may be a bad IP? reason i ask is that i put 2 "new" solenoids in it, 1st ran for about 4 hrs then quit the next morning, the 2nd the truck would not start at all and now im still using my original solenoid running fine and starting great. I only drive 5 miles to and from work every day so it really doesn't get as hot as it did the first time it quit.
This is my 3rd 6.5td and have owned it for about 3 weeks, have learned a great deal about it from here and have done a lot of mods from what i have read here and all has helped. Experience, trial and error are the best teachers thats why i turn to you guys thanks for the input.:tu:

FSO don't hardly ever go bad-I would blame the wiring first.
Make sure a mouse didn't set up shop under th intake and chew the insulation off the wires.