96 6.5 turbo was starting pretty rough and surging while driving so i bought a 6 foot harness with a new pmd. also did a CDR valve at the same time.



i switched it out and immediately went to start it and it fired. ran good. i let it idle there for about 20 minutes drove around the block and came home and shut er down. it's a project truck so it doesn't get driven much.

any way i come back out a couple weeks later to start it and all it does is turn over. just won't show any sign of life. it's a healthy stroke but it just sounds like it's a dry start. i look in the mirror and there's usually smoke chuffin out of the muffler but there isn't now, so the engine isn't getting fuel maybe?

obviously the new PMD could be a factor but i don't get why it would have started and ran for 30 mins when i first installed it and now a couple weeks later it won't. any ideas? thanks

 

i bought a new pmd it lasted from the house to the grocery store, try plugging back in your old one see if it starts, or swap out the new one for another new one. it is most likely a faulty pmd, oh and check your grounds. when you moved the pmd you didnt move the ground for that did you?

 

X2
Make sure that you got a NEW PMD and not a used tested good one from that ebay vendor,the used tested good are very unreliable and often take 3 or more replacements before you actually get a good 1-better off to get a real new dorman unit from amazon.

 

thanks a lot guys, but i've found a whole new problem. i was writing this forum topic out in my truck whilst trying to start it, and i went inside for a bit and came back out to a ton of diesel all over the ground. explains why it won't start . anyways, i traced the lines to the fuel filter, everything dry even the two fuel lines going in the block under the intake. but there's fuel pissing out every where when i crank it over. i can't for the life of me find a leak! and it's strange that they never leaked two weeks ago while starting it and running it, then all of a sudden it won't start and fuels pissing out everywhere. any body ever have a leak that sounds like this? it's a covered area where it looks like the leaks coming from. injector lines? thanks again guys.

 

oh and it should be noted the passenger side of the engine is soaked in fuel and the driver's side is dry as a bone. obviously something is happening with some lines on the passenger side. and if it was only one injector leaking she'd probably still bang over. i'm puzzled.

 

injector fuel return lines rotted?

 

is the t-bar thing in the middle of the front of your motor open?

 

Move the PMD to behind the front bumper get it out of the engine compartment.

 

CHeck the shut off solenoid I just had one leaking ran down the motor on the passenger side back

 

Check your FFM - Fuel Filter manager - Fuel filter bowl - I've had to replace a couple of them. I actually think I need to replace or repair the FFM in the 1998 Suburban. You can pull the FFM and put up to 10 lbs of pressure to it to check for leaks.

I think they sell the FFM as a complete unit - maybe Rockauto. If you get a part number please post it up. I've always had a spare so far and haven't had to rebuild any.
I'm fresh out of spares.
I heard the parts for rebuilding are about as much as a complete unit.

It usually doesn't take any pressure to find the leaks.

Keep us posted.