gbristol
03-07-2008, 05:30 PM
Engine cuts out (stumbles) at speeds between 50 55 MPH. I can accelerate in park and engine seems to be starving for diesel. The acceleration increase no matters how lightly the pedal is pressed, then as it get up to high speed and you let off, it starts to stumble.
1. Does the engine crank, or 'turn over'? Engine cranks fine.
1a. Does the engine start and run? Engine runs fine.
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
1b. Do you have a Wait To Start Light & the amount of time (seconds) lit. Yes, about 5sec.
1c. Ambient Condition (temperature outside indicate F or C) __ 76 F°
1d. Engine Cranking speed (if you have an accurate tachometer).
1e. Are you experiencing stalling? Yes
1f. If Stalling, describe (upon startup only, down the road, hit a bump etc) at speeds between 50 55 MPH and in park while accelerating.
1g. If Stalling, do you notice loss of dash or instruments? No-note if experiencing stalling,you must indicate PMD location in #24.
1.1 Lift pump test (http://dieselplace.com/forum/showthread.php?t=39350)- describe results. Open T-handle while running, no shut off, runs fine. Did a pressure test at T-handle, pumps between 4 6 psi and when accelerated pressure drops to about 2 psi (even with pump is jumped at relay).
2. Service Engine Light while running?- Off
2a. Service Engine light does glow during start/cranking/bulb check: Yes
3. Model year. 2000
3a. Odometer reading (indicate if in miles or km). 82618
3b. Miles on major engine components if been replaced (example Injection pump).OPS, lift pump are new, every thing else is unknown. Recent purchased.
3c. Indicate the model number on the Injection pump (starts DS4 or DB2). DS4
4. Have you scanned for engine codes? (varies by pre/post 96) Yes, none showed
5. List exact results on engine codes (http://www.dieselplace.com/forum/dtc.php): None
6. Air Filter condition (visual check). New
7. Fuel filter condition (freshly changed/condition unknown/mileage since changed). Freshly changed
8. Condition of Battery terminal connections (removed, cleaned and tightened). Removed, cleaned and tightened
8a. Known condition and age of the batteries. New
8b. Are batteries of differing age or are they a matched set? Different age
8c. Condition of Major Grounds (http://www.dieselplace.com/forum/showthread.php?t=157085). (same drill as batt - removed, cleaned, retightened). Removed, cleaned and tighten.
9. Upon cold start, does the radiator hose get hard quickly? No
10. Upon cold start, do you have excessive white smoke? No
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). No never used, no effect
13. During hard acceleration, do you have excessive black smoke? Yes
14. Do you have any unusual exhaust smoke issues? No
15. Turbo check out (http://dieselplace.com/forum/showthread.php?t=39368)- 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 its a 1500, 2500, 2500HD, 3500, 3500HD.
18. Indicate fuel that you are using: Bio-diesel, #2 Diesel, #1Diesel, SVO/WVO, other
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.
20. Please indicate geographic region you are in: (example: Texas or Canada). Florida
21. Do you have any service history available that might pertain to the problem you are having? None
22. Please indicate any modifications to the vehicle that might help us diagnose better. New PMD with remote mount in bumper at front license plate with heat sink and good ground to pump.
23. Upon unscrewing the fuel cap (http://dieselplace.com/forum/showthread.php?t=42338), do you have a large vacuum formed in the tank? No yes/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). Remote out of engine bay.
24a. If remote mounted, describe wiring harness (homemade or purchased from a vendor?) Purchased from a vendor
24b. Indicate the location and condition of the FSD/IP grounding wire. Grounded form FSD to pump.
25. Are ALL glow plugs in proper working order as per this thread (http://www.dieselplace.com/forum/showthread.php?t=39182)? Yes
Found that fuel pressure drops when engine is rev'ed, even when pump was bypassed at relay. any help will be appreciated.
1. Does the engine crank, or 'turn over'? Engine cranks fine.
1a. Does the engine start and run? Engine runs fine.
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
1b. Do you have a Wait To Start Light & the amount of time (seconds) lit. Yes, about 5sec.
1c. Ambient Condition (temperature outside indicate F or C) __ 76 F°
1d. Engine Cranking speed (if you have an accurate tachometer).
1e. Are you experiencing stalling? Yes
1f. If Stalling, describe (upon startup only, down the road, hit a bump etc) at speeds between 50 55 MPH and in park while accelerating.
1g. If Stalling, do you notice loss of dash or instruments? No-note if experiencing stalling,you must indicate PMD location in #24.
1.1 Lift pump test (http://dieselplace.com/forum/showthread.php?t=39350)- describe results. Open T-handle while running, no shut off, runs fine. Did a pressure test at T-handle, pumps between 4 6 psi and when accelerated pressure drops to about 2 psi (even with pump is jumped at relay).
2. Service Engine Light while running?- Off
2a. Service Engine light does glow during start/cranking/bulb check: Yes
3. Model year. 2000
3a. Odometer reading (indicate if in miles or km). 82618
3b. Miles on major engine components if been replaced (example Injection pump).OPS, lift pump are new, every thing else is unknown. Recent purchased.
3c. Indicate the model number on the Injection pump (starts DS4 or DB2). DS4
4. Have you scanned for engine codes? (varies by pre/post 96) Yes, none showed
5. List exact results on engine codes (http://www.dieselplace.com/forum/dtc.php): None
6. Air Filter condition (visual check). New
7. Fuel filter condition (freshly changed/condition unknown/mileage since changed). Freshly changed
8. Condition of Battery terminal connections (removed, cleaned and tightened). Removed, cleaned and tightened
8a. Known condition and age of the batteries. New
8b. Are batteries of differing age or are they a matched set? Different age
8c. Condition of Major Grounds (http://www.dieselplace.com/forum/showthread.php?t=157085). (same drill as batt - removed, cleaned, retightened). Removed, cleaned and tighten.
9. Upon cold start, does the radiator hose get hard quickly? No
10. Upon cold start, do you have excessive white smoke? No
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). No never used, no effect
13. During hard acceleration, do you have excessive black smoke? Yes
14. Do you have any unusual exhaust smoke issues? No
15. Turbo check out (http://dieselplace.com/forum/showthread.php?t=39368)- 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 its a 1500, 2500, 2500HD, 3500, 3500HD.
18. Indicate fuel that you are using: Bio-diesel, #2 Diesel, #1Diesel, SVO/WVO, other
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.
20. Please indicate geographic region you are in: (example: Texas or Canada). Florida
21. Do you have any service history available that might pertain to the problem you are having? None
22. Please indicate any modifications to the vehicle that might help us diagnose better. New PMD with remote mount in bumper at front license plate with heat sink and good ground to pump.
23. Upon unscrewing the fuel cap (http://dieselplace.com/forum/showthread.php?t=42338), do you have a large vacuum formed in the tank? No yes/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). Remote out of engine bay.
24a. If remote mounted, describe wiring harness (homemade or purchased from a vendor?) Purchased from a vendor
24b. Indicate the location and condition of the FSD/IP grounding wire. Grounded form FSD to pump.
25. Are ALL glow plugs in proper working order as per this thread (http://www.dieselplace.com/forum/showthread.php?t=39182)? Yes
Found that fuel pressure drops when engine is rev'ed, even when pump was bypassed at relay. any help will be appreciated.