On my way home this afternoon she started stumbling. I had the cruise set at 72mph. After getting off the freeway it drove fine at lower speeds. I got home and cut it off. Started it back up an hour later to move trailer around yard. Parked it and cut it off. Now it on't start at all just turns over. It turns over fast and batteries are fully charged. Tried spare pmd I had in garage still nothing. Opened bleeder valve and there is fuel coming out with key on during GP cycle.Can hear the lift pump running.I'm lost!:(


0. Describe in detail the problem you are having. Please be as descriptive as possible. See above^
1. Does the engine crank, or 'turn over'?-yes
1a. Does the engine start and run?-no
1a1. If the engine does not start - Crack injector line (http://www.dieselplace.com/forum/showthread.php?p=2188140#post2188140): do you have fuel? Yes/No- I have fuel at the bleeder valve
1b. Do you have a Wait To Start Light & the amount of time (seconds) lit.-5 seconds
1c. Ambient Condition (temperature outside indicate F or C) ___78__ °
1d. Engine Cranking speed (if you have an accurate tachometer).
1e. Are you experiencing stalling?-no but stumbles
1f. If Stalling, describe (upon startup only, down the road, hit a bump etc)
1g. If Stalling, do you notice loss of dash or instruments?
-note if experiencing stalling,you must indicate PMD location in #24.

1h. Check turbo inlet and air filter for obstructions. Cone filters have lost disk and stopped air to turbo.
1i. In a no-hot start, pour a bottle of room-temp water on the injection pump. Does it start now? yes/no
1.1 Lift pump test (http://dieselplace.com/forum/showthread.php?t=39350)- describe results
2. Service Engine Light while running?- on/off/intermittent-no light on
2a. Service Engine light does glow during start/cranking/bulb check: Yes/No-yes
3. Model year -97
3a. Odometer reading (indicate if in miles or km)111,000miles
3b. Miles on major engine components if been replaced (example Injection pump)new pmd
3c. Indicate the model number on the Injection pump (starts DS4 or DB2......)
4. Have you scanned for engine codes? (varies by pre/post 96) yes/no-no
5. List exact results on engine codes (http://www.dieselplace.com/forum/dtc.php):
6. Air Filter condition (visual check)-brand new
7. Fuel filter condition (freshly changed/condition unknown/mileage since changed)=brand new
8. Condition of Battery terminal connections (removed, cleaned and tightened)-clean and tight
8a. Known condition and age of the batteries.-1 year
8b. Are batteries of differing age or are they a matched set?-matched set
8c. Condition of Major Grounds (http://www.dieselplace.com/forum/showthread.php?t=157085). (same drill as batt - removed, cleaned, retightened)-good
9. Upon cold start, does the radiator hose get hard quickly? Yes/no
10. Upon cold start, do you have excessive white smoke? Yes/no
11. Do you have excessive cranking time before the engine starts?
12. Have you used the block heater, and does this effect engine starting?(only try for starting problems)
13. During hard acceleration (http://www.dieselplace.com/forum/showthread.php?t=42248#), do you have excessive black smoke? Yes/no-no
14. Do you have any unusual exhaust smoke issues?-light gray smoke almost invisible when you goose it in gear
15. Turbo check out (http://dieselplace.com/forum/showthread.php?t=39368)- pass/fail
16. Do you have an EGR on the engine? (An F or an S engine code 8th VIN digit)-no F
17. Indicate if you know if it’s a 1500, 2500, 2500HD, 3500, 3500HD.-1500 labeled as a 2500 suburban
18. Indicate fuel that you are using: Bio-diesel, #2 Diesel, #1Diesel, SVO/WVO, other=#2 diesel
18a. If running a VO (Veggie Oil fuel) setup, indicate details of your conversion (homemade, or packaged system)
19. Are you using any fuel additives? If so, please list.-cetane booster
20. Please indicate geographic region you are in: (example: Texas or Canada) -NC
21. Do you have any service history available that might pertain to the problem you are having?-no
22. Please indicate any modifications to the vehicle that might help us diagnose better.-3" down pipe,#9 resistor
23. Upon unscrewing the fuel cap (http://dieselplace.com/forum/showthread.php?t=42338), do you have a large vacuum formed in the tank? yes/no-no
24. Location of PMD/FSD (http://www.dieselplace.com/forum/showthread.php?t=39436)? On the pump/remoted over intake/remoted out of engine bay (please specify placement specifically)-on heatsink behind bumper
24a. If remote mounted, describe wiring harness (homemade or purchased from a vendor?)-purchased from pensecola diesel
24b. Indicate the location and condition of the FSD/IP grounding wire. stock location
25. Are ALL glow plugs in proper working order as per this thread (http://www.dieselplace.com/forum/showthread.php?t=39182)?-as far as I know

Help! Please!

Blown fuel solenoid fuse or bad fuel solenoid?

For starters,see if you got power at the fuel shut off solenoid with key on. If you do. Have someone cycle the key on and off and listen for FSO clicking,best to do that with a piece of hose.
Dont mistake the click with the glow controller relay.
If you dont have power, check the wiring back to the rear of engine for a break or chafing incl the connectors.
Check fuses.
Check PMD extension harnass and connectors.
Plug PMD in at the pump,see if it works there

Also, check for air at the fuel filter bleed screw before any thing else.

Where is the Fuel solenoid?

No air at the fuel filter. Opened the bleeder on the fuel filter and turned on the key got fuel running out of it. Fuel solenoid is clicking.

fuel solenoid is a small cylinder shaped silver thing on the top of the IP. Cant miss it. Take off the turbo power cover and you can see it.

Got any codes?

I haven't been able to check for codes. It is parked in the street in front of my house dead. The CEL was not on when I parked it. I don't have a scan tool.

You need to get it scanned though.
Check engine light on?
You know, I had the same symtoms on my 95 a month ago, I swapped the pmd to my 98,and the symtom followed to the 98. Bad PMD.So how good is your spare?

The spare is brand new never been installed. I plugged it in to the extension harness and no change. I have another extension cable I will try.

so what if you plug it in at the IP,that will rule out the ext cable.

do you have a DVOM/DMM? you can check the extension harness for resistance.
where did you get the new PMD?

Yes I have a volt meter. They are brand new D tech pmd's from Pensecola Diesel.

Ok I plugged pmd in at IP and truck started woohoo! Turned out to be just a bad extension cable.Thanks guys.

How old and where did you get the extention cable from?

It's a month old and come from Pensecola Diesel. It was their heatsink and relocation kit.

Did you have your harness extension zip tied to anything or was it free to move around?

Zip tied about every 8-10"