why wont my truck start

how cold is it? glow plugs working?

Its 80 degrees out I live in the Oklahoma panhandle haven't checked glow plugs yet but will today or tomorrow any other ideas in the mean time?

Would the glows plugs not working just make it die like that tho ugh I've heard lots of talk about the pmd quiting on these engines

the governor ring in the injector pump is a common failure. you can try removing the return line check valve and see if it has metal shavings in the valve. if there is, clean them out put it back together and see if it starts. it may if the valve is clogged.

Roy

Ok thanks ill try that tomorrow and see what I can find gotta work late so wont get to mess with it tonite

get back to us

Roy

Will do thank you very much for ur input ill let you know what it looks like when I get a chance to check it out

does CEL work? any codes?

What is the cel and where is it located

early system and not much info on the line.

injector pump is real common on these old units. governor rings were failing on the old stanadyne pumps left and right.

Roy

check engine light. should come on when you turn key to on and go out when started. here's another thing to look at.
1994 Chevy Truck K 2500 Suburban 4WD V8-393 6.5L DSL

Fuel Cut Solenoid: Testing and Inspection
An inoperative shutdown solenoid can cause a no-start condition. Disconnect solenoid harness connector and with ignition switch in the "ON"
position momentarily touch solenoid harness connector to solenoid connector. If a "click" sound is heard, the solenoid circuit is operating
properly. If "click" is not heard, the system should be diagnosed as follows:
1. With test lamp connected to ground and the ignition switch in the "ON" position, backprobe the shutdown harness connector. If the test lamp
does not light check for open circuit form the ignition switch to the solenoid.
2. If the test lamp lights, check the ground circuit between solenoid stud and injection pump cover to see if connectors are clean and tight. If the
connections are not clean and tight repair and retest.
3. If the ground circuit is "OK", remove the injection pump cover. Connect a jumper wire between solenoid ground connector and ground. With
the ignition switch in the "ON" position, momentarily touch shutdown solenoid harness connector to shutdown solenoid terminal. If solenoid
operates, check for internal injection pump problem.
4. If the solenoid will not operate, replace the shutdown solenoid.

I think that this is the original injection pump and of it is its got 152000 mile on it

the test tree is something you should follow. fixit gave you a great chart to follow. I have done it so many times and found it to be the pump in the end that I neglected to give it to you. sorry, i would follow his chart first before condemning the pump.

Roy

The lite does work haven't checked the codes I dnt have s scanner

did you check the check valve as i suggested??

Roy

Thanks guys and I haven't had time yet got off late yesterday and am working today gunna try and check out all points y'all have suggested tonite when I get off work around 6 then ill get back with you thanks for all your help thus far y'all know alot more about this truck than I do and your help is very appreciated

Ok guys I checked the check valve no shavings and the solinoid is working im gunna hook up the other pmd I've got and see if that helps

crack a line at the injector and crank it and see if there is any fuel pressure coming out of the line.

Roy

There's fuel but not much pressure just squirts out a lil

i still think you have a failed injector pump as i first stated.

Roy

Well a friend told me how to make the codes flash and it flashes a nineteen over and over nothing else what does that mean

I agree with you Roy but I want to make sure all possibilities have been checked b4 I sink 1400 bucks in a truck if its unecissary

I completely agree. you could remove the pump and find a truck shop and find out where they get there pumps serviced. they could test it to verify for you.

Roy

Ok cool deal what does the crank positioning sensor do and will it keep the engine from starting

crank sensor sends a tach signal to the ecm. i have never had it not allow a diesel to start from this generation. have seen solenoids fail. glow plug controller and plugs themselves, mechanical pumps fail but not sensor failure.

Roy

Ok thanks

good luck, by the way, did you try spraying any starting fluid into the air filter to see if it tries to start?? just a small spritz as it can damage the motor if you use too much

Roy

Yes I did it tried tp start blew lots of white smoke

good, then that about confirms the injector pump.

Roy

I agree and I can't justify putting that much money into it I just took it back to my buddy he wants 2200 for it and if im gunna have to spend that much to fix it rite off the bat I dnt want it so thanx for all your help I learned alot I appreciate everything

goodluck

Roy

He ain't real thrilled but I tried to explain howmuch trouble he's gunna have trying to sell a truck is nonoperational for 2200

even running, it is not worth that kind of money

Roy