Howdy guys, I've owned this 1994 chevy 6.5 since it was new and except for two updated injector pumps that were under warranty and this problem it has been a great truck with 108,000 miles on it. Recently I drove for about 10 minutes parked came out wouldnt start, after 15 minutes it started, a week later happened again called tow truck, got it home fired right up. Changed pump in frame fired right up died a minute later,then it started right back up, I didnt trust driving it so it has sat in the driveway for 3 months. Yesterday it started right up then died within 5 seconds. Noticed glow plug light didnt stay on too long so put another glowplug controller/timer. Didnt start. Got annoyed charged batteries over night. This morning opened t valve and cranked over it fired up and kept running and was pumping fuel into container without dieing. shut off truck closed t valve went to start nothing. Opened t valve cranked over and it started. Just went out there pulled out of the driveway and pulled back in and it died. any thoughts? Any help is appreciated, I am taking a breather and posting this to keep me away from any nosey neighbors offering stupid suggestions. Like the old ( Why dont you sell it and buy a new one ) GRRRRRRRRR

 

sound like maybe PMD going bad
check all the ground and them they play very inporting part for these motors
check screen in the fuel blow and filter
do OPS check
just cause you hear the LP running doesn't mean it good


if you need more info on how check and look at thing let know i will post some info and pics up

 

^^^^ post up i've had the same problems here recently

 

Went out this morning fired right up, let it run for about fifteen minutes, shut it off, fired right back up. Waited half hour went out, fired right back up. Not what you can call trustworthy yet though. I have not done anything to it since posting yesterday. Any thoughts on this, I know alot of people must have had the same thing happen. It messes with your head when you try replacing something and it will not start, then you do NOTHING and it starts. Think I am getting closer to the ( lay a brick on the pedal stage )

 

i would be guessing the pmd is going bad like crazy said. from what i rember thats what our 94 was doing when ours went out

 

Ok, Looks like I am off to get a new one, after reading alot of these post it looks as though I should mount in the bumper as to not have the same problem again huh?

 

yeah anywhere you can get it away from most of the heat

 

Just make sure you leave the ground wire on top IP

 

Thankyou, Any proven aftermarket PMD's that you would recomend?

 

they did come out with better PMD they say don't if it better have gotting one yet but you have change the plug and wires at the back IP and got newer Resistor

i got PMD from SSD made my own harness and put in the front bumper

you do some read up on here

DS Pumps - Stanadyne