Ok have a 1995 6.5TD. I have done a ton to it in the last year. New IP New batterys redid all the grounds. New PMD And relocated it to the inside of front bumper. And still have the same problem. But new glow plug relay on it twice. Just because the first time it seemed like it fixed it so when i quit again i tried another but didnt fix. I unpluged the Fuel warmer and that seemed the problem because if i pluged it back in it wouldnt start. the glow plug light would just flash with it pluged in. Unplug it and it would fire right up. Well it ran fine for 2 days again and now it wont start if it is pluged in or not. It seems like a fuel issue to me because if the glow plug light doesnt stay on like it is supose to it would even try to start. I dont understand i m Stumped. the only other thing i could think of is maybe the computer or something. But i was always told that if it was the computer it would work just some of the time. So i have no ideal what to do now. I cant keep just throwing money at it replacing part until i tget it right.

 

How about LP did u replace it yet i know it sucks buying parts for these trucks money wise i spent like 500 today it sucks.

 

you say you unplug the fuel filter heater and it starts did i under stand that right and are you talking about the one in the fuel filter housing

 

yes it was the one in the filter houseing. But now it doesnt start with or without it unpluged. it doesnt even try no smoke or anything

 

sound like PMD my have gone south on you are you getting fuel to the IP

 

it s a new pmd. i thought maybe i got a bad one so i got another and still same thing

 

like said check see if you are getting fuel to the LP if you are check the fuel shut off solenoid see if it getting power to it if it is pull it off and see if the plunger moves just be careful of the O-Ring then we go from there

 

i can hear the and feel the fuel shut off on the IP. so i assume it is working. And does that have anything to do with the glow plug relay. Because i can tell if it will start or not by if the Wait light stays on

 

I have a fuel shutoff sol. of my old ip it was good if u want to drive to poconos u can have it .

 

I m not saying it is the fuel shutoff sol. But i dont know. Would the fuel shutoff sol make the glow plug relay short cycle.