My 94 12v ctd will not start. It turns over fine. It is just not catching and firing off the cylnders. I changed the fuel/water seperator and primed it cracked the top bleeder. to get all the air out. Then i cheecked for fuel at the injection pump. It is getting there. The cutout solenoid seems to be working I cracked the lines at the injectors and I am not getting that high pressure stream from them though. It ran fine this morning till it died in the drive way. I thought it ran out of fuel so I added 5 gal. and bled the system of air. Any other ideas

turn the key on and bump it over and check to make sure that the shut off solinoid is working.

if ti ran out of fuel it can be a bear to re start. youll most lily have to crack each injector line. jiMMy

if ti ran out of fuel it can be a bear to re start. youll most lily have to crack each injector line. jiMMy


Yup, one of the worst PITA things you can do is run a diesel out of fuel.

If you dont know what you are doing, and no you dont have to crack every line just get fuel out of one or 2 of them.

If you dont know what you are doing, and no you dont have to crack every line just get fuel out of one or 2 of them.yes you are right. btu it will stumble for a bit and hopefully catch the others and bleed itself out. jiMMy

exactly

Ok. So I watched the solenoid. even held it by hand has some one bumped it over. I also bleed the injectors. I have ran it out of fuel before and started it this way. Cracked the banjo at the injector pump and madesure fuel was getting the there and it was. I dont have a high pressure stream at the injector though. Maybe the lift pump isnt working. I only came here after I couldnt figure it out. I even checked out the TDR for similar problems and couldnot find any. Any other suggestions.

humm, did you crack the banjo bolt and try cranking it over to see if fuel was comming out?

I am almost poitive it is the lift pump. Are these know to be a common failure. It seems like the things that fail in these trucks fail across the board. Has anyone had to change one of these. the Truck has almost 200,000 mi. on it. So I guess it could go bad. My truck may not have been out of fuel either. My sending unit does not work.(another common dodge problem) I ususally drive by my odometer and it was not time for fuel but I thought maybe I lost track and was off by few miles. Who knows.

Ok, no clue what the problem is. Solenoid is good. lift pump is working and I pressurized the tank and bled the injection pump. No cracks in the rubber lines that I can see visiblily. Still though I have no pressure at the injectors fuel just dribbles out. Come awn any suggestions.

if you turn the key on a lock the solenoid up manually before cranking, does it help? using the manual primer has helped me before get it started when there's air in the line...

try cracking all 6 lines?

if you turn the key on a lock the solenoid up manually before cranking, does it help? using the manual primer has helped me before get it started when there's air in the line...

try cracking all 6 lines?
tried all of these

I don't think an injector pump rebuild at 200k would be unreasonable. That sounds like the obvious answer to me, but I don't know that much about the 12 valves.

I had a lift pump failer and was having the same issues. The pump was working but not generating any pressure to the injection pump, so it wouldn't start. Changed the pump and no more problems, fired right up.

If your injection pump needs a rebuild it would be a miracle these pumps were designed to run over a million miles trouble free.

Thanks I think I am going to change the lift pump in the morning to see if that is it. I have also heard that the lines at the top of the tank can break and suck air in.

Did ya fix it yet?

Ya, that little rubber hose from the lift pump to the heater had a crack in it and would let in air. also changed the lift pump for the hell of it.

shouldn't have had to change the lift pump. That's a mechanical pump and they almost never go bad. usually it's the rubber hoses (like you found out) if you are getting prime and it's not getting pressure. But I guess since you had it all apart might as well change it. Another common problem is the actual fuel lines cracking at the engine and leaking letting air in. Glad to figured it out.

Oh and from lots of experience (running with no fuel gauge and no speedo) you should only have to bleed the first injector and then it should start just fine lots of smoke and stumbling but after about 45 sec to a minute it'll be running on all six.

-ben