Help 96 PSD won't start

[04SSHD]

I drove my truck over the weekend and tried to start it up today and I ran the batteries dead turning the motor over with out the truck starting. What could cause this? I already replaced the glow plug module and I bought new glow plugs and plan on installing them tomorrow. I also bought two new batteries and will put those in tomorrow also. When I try to start the truck it doesn't even try to start, the glow plug relay gets really hot and a little smoke comes out of the exhaust side of the turbo. Can anyone point me in the right direction on getting my truck running again? Would be appreciated, thanks!

[djsdiesel]

Since you already bought the glow plug, go ahead and install them, while you have the valve covers off, check the UVC harness's. They are known for melting. If you find one melted it will need to be replaced. If it is melted you will need to check the engine wiring harness side of the connector, if it is melted also you will need to replace the harness or find a repair kit for the harness, I think Oregon Fuel Injection sells them or check one of the vendors here.

[04SSHD]

Thanks, I will check it today when I put the glow plugs in.

[Dave]

Does the tach move when you crank it over CPS maybe

[SCUFFY828]

is the oil level low and agree with quadracer does the tach move when spining over ,if batteries are that weak ,it wont start either, has to spin fast enough to start , does the wait to start light come on

[04SSHD]

well, I got it running, but it is running pretty bad. I replaced the glow plugs on the passenger side and saw the harness to the 2 front glow plugs and injectors was melted. I went to the stealership and dropped $65 on a new harness. I also put two new optima batteries in it and tried to crank it over. At that point it wouldn't fire up. I got some ether and got it to start finally. And it was running pretty rough, no power at all. I drove to the gas station and put some fresh fuel in it and the truck stalled when I pulled into the station. Started it back up, got fuel and drove it home. On the way home it barley hit 65 going up hill on the freeway.

What do you guys think is wrong with my truck? I am going to change the other glow plugs tomorrow and see if it helps but I think something else is wrong with it...

[sbb3]

try the cam shaft sensor . it's just below the water pump on front of the engine

[SCUFFY828]

glow plugs wil not efect runing at all just helps cranking , need to run more diag ,before buying any more parts , fuel pressure test, run codes , to see if you have any

[04SSHD]

I have a gas fuel pressure tester, will this work for diesel also or is a special tool needed? And where do I check the codes at? I have an OBD2 scanner but I can't find a diagnostic port under the dash...

[SCUFFY828]

yes that gauge should work fine ,fuel pess. needs to be 55 give or take a few pounds , should climb gradually to that , and obd 11 port should be to the right side of the dash below the glove box ,aiming down