What are some of the symptoms of a failing injector pump? I have been experiencing what seems like a dead cylinder (seems to be getting worse like 2 dead cylinders now). I thought it might be a bad/clogged injector. I would say it sounds like a dead cylinder not just an occasional miss.
It doesn't seem to be get better when warmed up either. I was looking around under the hood last night, and the IP sounded a little "grindy", but this is a recent purchase, and I don't now what it's supposed to sound like.
1. Does the engine crank, or 'turn over'? yes
1a. Does the engine start and run? yes, quickly within 1-2 sec crank
1a1. If the engine does not start - Crack injector line: do you have fuel? Yes/No
1b. Do you have a Wait To Start Light & the amount of time (seconds) lit. ~10sec
1c. Ambient Condition (temperature outside indicate F or C) ___50°-70°F
1d. Engine Cranking speed (if you have an accurate tachometer).
1e. Are you experiencing stalling? No
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. Seems fine
1i. In a no-hot start, pour a bottle of room-temp water on the injection pump.
1.1 Lift pump test - - lots of fuel
2. Service Engine Light while running?- off
2a. Service Engine light does glow during start/cranking/bulb check: bulb check only
3. Model year 94
3a. Odometer reading (indicate if in miles or km) 300600m
3b. Miles on major engine components if been replaced (example Injection pump) unknown
3c. Indicate the model number on the Injection pump (starts DS4 or DB2......) will check ,did notice a metal tag with what looked like orange paint securing the screw
4. Have you scanned for engine codes? (varies by pre/post 96) not lately
5. List exact results on engine codes:
6. Air Filter condition (visual check) seems well K&N cone
7. Fuel filter condition (freshly changed/condition unknown/mileage since changed) changed this week, old one did not look bad
8. Condition of Battery terminal connections (removed, cleaned and tightened) One side is good, had it loose within a month
8a. Known condition and age of the batteries. cranks easily
8b. Are batteries of differing age or are they a matched set? matched set
8c. Condition of Major Grounds. (same drill as batt - removed, cleaned, retightened) unknown
9. Upon cold start, does the radiator hose get hard quickly? replaced thermostat 600m ago
10. Upon cold start, do you have excessive white smoke? puff
11. Do you have excessive cranking time before the engine starts? no
12. Have you used the block heater, and does this effect engine starting?(only try for starting problems)
13. During hard acceleration, do you have excessive black smoke? no
14. Do you have any unusual exhaust smoke issues? no
15. Turbo check out - pass
16. Do you have an EGR on the engine? (An F or an S engine code 8th VIN digit) no
17. Indicate if you know if it’s a 2500HD
18. Indicate fuel that you are using: #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. tried fuel injector cleaner on current tank, will check brand
20. Please indicate geographic region you are in: (example: Texas or Canada) Oklahoma
21. Do you have any service history available that might pertain to the problem you are having?
22. Please indicate any modifications to the vehicle that might help us diagnose better. 3" downtube into 4" exhaust from muffler
23. Upon unscrewing the fuel cap, do you have a large vacuum formed in the tank? have seen some pressure diff on accasion but unsure if pressure or vacuum
24. Location of PMD/FSD? On the pump/remoted over intake/remoted out of engine bay (please specify placement specifically) bumper
24a. If remote mounted, describe wiring harness (homemade or purchased from a vendor?) purchased
24b. Indicate the location and condition of the FSD/IP grounding wire. unknown
25. Are ALL glow plugs in proper working order as per this thread? unknown but starting is no issue
It doesn't seem to be get better when warmed up either. I was looking around under the hood last night, and the IP sounded a little "grindy", but this is a recent purchase, and I don't now what it's supposed to sound like.
1. Does the engine crank, or 'turn over'? yes
1a. Does the engine start and run? yes, quickly within 1-2 sec crank
1a1. If the engine does not start - Crack injector line: do you have fuel? Yes/No
1b. Do you have a Wait To Start Light & the amount of time (seconds) lit. ~10sec
1c. Ambient Condition (temperature outside indicate F or C) ___50°-70°F
1d. Engine Cranking speed (if you have an accurate tachometer).
1e. Are you experiencing stalling? No
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. Seems fine
1i. In a no-hot start, pour a bottle of room-temp water on the injection pump.
1.1 Lift pump test - - lots of fuel
2a. Service Engine light does glow during start/cranking/bulb check: bulb check only
3. Model year 94
3a. Odometer reading (indicate if in miles or km) 300600m
3b. Miles on major engine components if been replaced (example Injection pump) unknown
3c. Indicate the model number on the Injection pump (starts DS4 or DB2......) will check ,did notice a metal tag with what looked like orange paint securing the screw
4. Have you scanned for engine codes? (varies by pre/post 96) not lately
5. List exact results on engine codes:
6. Air Filter condition (visual check) seems well K&N cone
7. Fuel filter condition (freshly changed/condition unknown/mileage since changed) changed this week, old one did not look bad
8. Condition of Battery terminal connections (removed, cleaned and tightened) One side is good, had it loose within a month
8a. Known condition and age of the batteries. cranks easily
8b. Are batteries of differing age or are they a matched set? matched set
8c. Condition of Major Grounds. (same drill as batt - removed, cleaned, retightened) unknown
9. Upon cold start, does the radiator hose get hard quickly? replaced thermostat 600m ago
10. Upon cold start, do you have excessive white smoke? puff
11. Do you have excessive cranking time before the engine starts? no
12. Have you used the block heater, and does this effect engine starting?(only try for starting problems)
13. During hard acceleration, do you have excessive black smoke? no
14. Do you have any unusual exhaust smoke issues? no
15. Turbo check out - pass
16. Do you have an EGR on the engine? (An F or an S engine code 8th VIN digit) no
17. Indicate if you know if it’s a 2500HD
18. Indicate fuel that you are using: #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. tried fuel injector cleaner on current tank, will check brand
20. Please indicate geographic region you are in: (example: Texas or Canada) Oklahoma
21. Do you have any service history available that might pertain to the problem you are having?
22. Please indicate any modifications to the vehicle that might help us diagnose better. 3" downtube into 4" exhaust from muffler
23. Upon unscrewing the fuel cap, do you have a large vacuum formed in the tank? have seen some pressure diff on accasion but unsure if pressure or vacuum
24. Location of PMD/FSD? On the pump/remoted over intake/remoted out of engine bay (please specify placement specifically) bumper
24a. If remote mounted, describe wiring harness (homemade or purchased from a vendor?) purchased
24b. Indicate the location and condition of the FSD/IP grounding wire. unknown
25. Are ALL glow plugs in proper working order as per this thread? unknown but starting is no issue