93 won't start

[dpuckett]

I just bought a 93 D350 with 150K miles from a rental company next door to where my fiancee works. [The truck was used to haul bobcats, etc to people who rented them; IT wasnt rented out]. I did my normal new vehicle service- change all fluids and filters. After the changing the fuel filter, it would not start. Some trial and error revealed a faulty lift pump- line out of it was completely off, and not a drop of fuel coming out of it. I replaced the pump, and still not starting. It will crank, and run for about 1-2 seconds, then die. Fuel is getting to all the injectors. The pump is fairly new, though that means nothing in itself. It is getting juice to the fuel solenoid, though I guess the solenoid could be faulty itself. I am at a loss as to what to check out next. It was running strong (for a stock engine- guages still in the mail) when I got home. I HAD just filled the tank, and driven about 30 miles to home. I have been getting fuel there for a while with no problem (40 gallons a week), so I would put that kind of far down on the list. I have never had any real fuel system trouble before with these enginges. What little things can make it not run suddenly?



Thanks in advance.



Daniel

 

[BushWakr - RIP]

I'd bet you have air in the system. You will need to bleed the system thoroughly.

Start with the fuel filter slightly and work pump till you get fuel dribbling from the filter, then tighten that.

Then do the low pressure bleed screw on the side of the engine, on the drivers side. Crack it loose then work the lift pump lever till you get fuel coming from it, then tighten the screw.

Return lift pump lever to "UP" position.

Loosen each injector and crank (best done with 2 people) till you have a good spurt of fuel and tighten. Do each in turn and see if that helps.

If the truck starts, then re-crack each inj. nut loose for a couple seconds, and let any remaining air out.

Do this with the engine cold. Keep a couple good rags handy to drape over the injector line/nut so you don't shoot fuel all over.

Do NOT let it hit your skin directly or you are in trouble, it's under nasty pressure and can enter the blood stream.



Try that and get back to us...



Good luck.

Bob.

 

[dpuckett]

BushWakr-



THanks, but I have tried that, though not to a T as you said.

I have fuel coming out of the injectors. I started at the screw atop the filter housing and had a good deal of fuel coming out. THen I disconnected the power to the solenoid and cranked it till I had fuel coming out of the lines at the injectors. On the other 4 pickups I had, it would stay running- albeit rough- if I had fuel to 3 or 4 injectors, then smooth out after a few seconds. I will try taking out the stopper at the solenoid as I read on another post in the archives, and see how that works. It's 11 o'clock and I have no heated shop, so I will have to wait till morning.

Later,



Daniel

 

[BushWakr - RIP]

Ok, good luck Daniel. Let us know how you make out, and also any other symptoms you notice/experience as you go along.

Let's see if we can get this cleared up for you.

We all like a challenge... .



Bob.