Joey McGuire
New Member
I just spent the day under the hood of our rig with no success and wanted to pose the problem to all of the helpful people on this forum so hopefully you can give me some better insight or just remind me to check one of the obvious things I have missed.
So my wife was driving along and thinking how nice it was to have the car running so well when it just stopped running. No evil noises or erratic running prior to shutting off. She coasted to the side of the highway and tried to restart it with no success. That is still the problem.
I will try to remember all the things I have checked out today. The car cranks over well with fully charged batteries. I pulled the codes and get 12 all day long. I have a factory repair manual and followed some tests of the PMD power and ground sources and they check out. Fuel pump is working. I even hot wired it just to make sure it was working when I was cranking and couldn't hear it. Checked fuel flow all the way to the IP. I pulled the oil filler off the front of the motor to make sure I didn't lose drive to the IP and all is still rotating there. I checked grounds all over the place and even the ground off the IP itself. I pulled fuel lines off the injectors and am getting no fuel. (obviously, but had to see it for myself) I pulled the fuel shut off solenoid plunger thingamajig off the top of the IP and put voltage to it to make sure it was actually functioning. I didn't trust just feeling it click.
Any other ideas would be much appreciated. I am sure there are some obvious things I am missing. Has anyone had instant IP failure? All the stories I have heard seem to be longer death. Maybe the shaft broke in the pump? Lay it on me. I will put as much into the diagnostic list as I can pull out.
- Year: __1994____
- Truck model and class (ie: c2500) __2500 Suburban_______
- Automatic or Standard __Auto________
- Mileage: (indicate miles or km) ___?______
- Replaced parts and mods (IP, PMD, chip/PCM, TM, injectors etc) __Heath Pmd kit_________
- Model: ‘S’ or ‘F’ engine, NA or Turbo, EGR? _______F_______
- Ambient outside temp: (indicate *C or *F) ______80 F____
- What fuel are you using? (#1 Diesel, #2 Diesel, Bio, VO, WVO, etc) ___#2 Diesel______
- What fuel additives are you using? ___None________
- Where are you located? ____Wenatchee WA_________
General maintenance: inspect and evaluate the condition of each. When were they last changed?
- Air filter __10,000 miles ago_______
- Fuel filter __10000 miles ago_______
- CDR Valve? __?_______
- Coolant – last flushed/replaced at __4000 miles ago___________
- Oil – synthetic/regular, changed at __regular every 4000 approx._________
- Batteries – state of charge, (matched set) replaced at _charged all day__________
- Battery cables and grounds (removed, cleaned and tightened): __Cleaned and checked with ohmeter and test light____________
- Glow Plugs - how many miles on them? ___4000 ______ What type? _AC Delco____________
- Injectors - last changed at ____?___________
History: (Describe how the problem first appeared.)
- What were you doing when it happened? __Driving along at 60____________
- How was the truck running fine before this problem appeared? ____running great_________
- Has this problem ever happened before? ______No_________________
- Describe any related factors that might be part of the problem. ___?___________
- Have you checked for DTC (Diagnostic Trouble Codes)? (Y.N) __Y__ And? ____12 all day____
Diagnostics:
1] Starting:
1a] Does the engine start? ___no______
1b] Does the engine crank over? _yes_______
1c] Are your batteries fully charged? ___yes______
1d] Have you removed, cleaned, and tightened all battery connections? _yes_______
1e] Does your Wait to Start light come on for a time? How long? _________
1f] Does your glow plug light come on? ___yes______ For how long? _________
1g] Do you see smoke from the exhaust while cranking? What color? ___no_____
2] Fuel Issues (if not running):
2a] Can you hear your lift pump working? ____yes________
2b] Do you get a steady flow of fuel from the water drain (T-handle) ? ____yes_____
2c] Loosen the inlet line from the IP – is fuel coming out (Lift Pump on)? ______yes_____
2d] Loosen an injector line and crank the engine - does fuel come out? ____no_____
2e] Do you hear a vacuum (hiss) when you remove the fuel cap? _______?____
3] PMD / IP Issues
3a] Location of PMD (on pump, on intake, remote mounted) _____remote heath ______
3b] Condition of Extension harness (if used) Vendor or Homemade? ___vendor______
3c] Condition of grounds / ground wires to IP / PMD. Check Harness. ____checked good_____
3d] PMD Make: ____stanadyne_______
3e] PMD Age: _____1 year 5000 miles________
4] Stalling Issues
4a] Do you experience stalling only when hot? ____no________
4b] Does it stall under particular circumstances? (ie hit bump, or on accel) ______
4c] Does pouring cool water over the IP seem to help with restarting? _________
4d] Is stalling momentary (engine recovers)? _________
4e] Does SES light come on when engine hiccups? _________
4f] Does cruise control quit working when engine hiccups? ___________
4g] Does re-starting seem to reset engine, restoring cruise and power? _________
4h] Changes to dash lights or instruments during stalling events? ___________
5] Running Issues
5a] On cold start, does upper rad hose get hard before engine warms up? _______?
5b] Any bubbles or oil film in coolant overflow tank? _____no__
5c] Any white slime on oil surfaces (dipstick, CDR, oil Fill cap)? __no________
5d] Excessive white smoke from exhaust on cold start? _______no__
5e] Excessive black smoke from exhaust under hard acceleration? __no________
6] Performance Issues
6a] Do you have gauges? _________no__
6b] Maximum boost under load? _____?_______
6c] Have you added a performance PCM (reflash) or Chip? ________no______
6d] Have you changed exhaust / downpipe / crossover? __stock downpipe and crossover______________
6e] Wastegate – mechanical or vacuum? _______vacuum_______
7] Temperature-related Issues:
7a] Single or dual thermostats? _____single_______
7b] Have you replaced them lately? Manufacturer of replacements? _______yes ac delco from heath__
7c] Have you pulled and cleaned Radiator and coolers lately? __yes 5000 miles ago__________
7d] Have you replaced the fan clutch? Manufacturer of replacement? __HD from heath______
7e] (winter) Have you tested your antifreeze? Good to what temp? _____no_____
7f] (winter) Are you using a winter grille cover? _no__________
So my wife was driving along and thinking how nice it was to have the car running so well when it just stopped running. No evil noises or erratic running prior to shutting off. She coasted to the side of the highway and tried to restart it with no success. That is still the problem.
I will try to remember all the things I have checked out today. The car cranks over well with fully charged batteries. I pulled the codes and get 12 all day long. I have a factory repair manual and followed some tests of the PMD power and ground sources and they check out. Fuel pump is working. I even hot wired it just to make sure it was working when I was cranking and couldn't hear it. Checked fuel flow all the way to the IP. I pulled the oil filler off the front of the motor to make sure I didn't lose drive to the IP and all is still rotating there. I checked grounds all over the place and even the ground off the IP itself. I pulled fuel lines off the injectors and am getting no fuel. (obviously, but had to see it for myself) I pulled the fuel shut off solenoid plunger thingamajig off the top of the IP and put voltage to it to make sure it was actually functioning. I didn't trust just feeling it click.
Any other ideas would be much appreciated. I am sure there are some obvious things I am missing. Has anyone had instant IP failure? All the stories I have heard seem to be longer death. Maybe the shaft broke in the pump? Lay it on me. I will put as much into the diagnostic list as I can pull out.
- Year: __1994____
- Truck model and class (ie: c2500) __2500 Suburban_______
- Automatic or Standard __Auto________
- Mileage: (indicate miles or km) ___?______
- Replaced parts and mods (IP, PMD, chip/PCM, TM, injectors etc) __Heath Pmd kit_________
- Model: ‘S’ or ‘F’ engine, NA or Turbo, EGR? _______F_______
- Ambient outside temp: (indicate *C or *F) ______80 F____
- What fuel are you using? (#1 Diesel, #2 Diesel, Bio, VO, WVO, etc) ___#2 Diesel______
- What fuel additives are you using? ___None________
- Where are you located? ____Wenatchee WA_________
General maintenance: inspect and evaluate the condition of each. When were they last changed?
- Air filter __10,000 miles ago_______
- Fuel filter __10000 miles ago_______
- CDR Valve? __?_______
- Coolant – last flushed/replaced at __4000 miles ago___________
- Oil – synthetic/regular, changed at __regular every 4000 approx._________
- Batteries – state of charge, (matched set) replaced at _charged all day__________
- Battery cables and grounds (removed, cleaned and tightened): __Cleaned and checked with ohmeter and test light____________
- Glow Plugs - how many miles on them? ___4000 ______ What type? _AC Delco____________
- Injectors - last changed at ____?___________
History: (Describe how the problem first appeared.)
- What were you doing when it happened? __Driving along at 60____________
- How was the truck running fine before this problem appeared? ____running great_________
- Has this problem ever happened before? ______No_________________
- Describe any related factors that might be part of the problem. ___?___________
- Have you checked for DTC (Diagnostic Trouble Codes)? (Y.N) __Y__ And? ____12 all day____
Diagnostics:
1] Starting:
1a] Does the engine start? ___no______
1b] Does the engine crank over? _yes_______
1c] Are your batteries fully charged? ___yes______
1d] Have you removed, cleaned, and tightened all battery connections? _yes_______
1e] Does your Wait to Start light come on for a time? How long? _________
1f] Does your glow plug light come on? ___yes______ For how long? _________
1g] Do you see smoke from the exhaust while cranking? What color? ___no_____
2] Fuel Issues (if not running):
2a] Can you hear your lift pump working? ____yes________
2b] Do you get a steady flow of fuel from the water drain (T-handle) ? ____yes_____
2c] Loosen the inlet line from the IP – is fuel coming out (Lift Pump on)? ______yes_____
2d] Loosen an injector line and crank the engine - does fuel come out? ____no_____
2e] Do you hear a vacuum (hiss) when you remove the fuel cap? _______?____
3] PMD / IP Issues
3a] Location of PMD (on pump, on intake, remote mounted) _____remote heath ______
3b] Condition of Extension harness (if used) Vendor or Homemade? ___vendor______
3c] Condition of grounds / ground wires to IP / PMD. Check Harness. ____checked good_____
3d] PMD Make: ____stanadyne_______
3e] PMD Age: _____1 year 5000 miles________
4] Stalling Issues
4a] Do you experience stalling only when hot? ____no________
4b] Does it stall under particular circumstances? (ie hit bump, or on accel) ______
4c] Does pouring cool water over the IP seem to help with restarting? _________
4d] Is stalling momentary (engine recovers)? _________
4e] Does SES light come on when engine hiccups? _________
4f] Does cruise control quit working when engine hiccups? ___________
4g] Does re-starting seem to reset engine, restoring cruise and power? _________
4h] Changes to dash lights or instruments during stalling events? ___________
5] Running Issues
5a] On cold start, does upper rad hose get hard before engine warms up? _______?
5b] Any bubbles or oil film in coolant overflow tank? _____no__
5c] Any white slime on oil surfaces (dipstick, CDR, oil Fill cap)? __no________
5d] Excessive white smoke from exhaust on cold start? _______no__
5e] Excessive black smoke from exhaust under hard acceleration? __no________
6] Performance Issues
6a] Do you have gauges? _________no__
6b] Maximum boost under load? _____?_______
6c] Have you added a performance PCM (reflash) or Chip? ________no______
6d] Have you changed exhaust / downpipe / crossover? __stock downpipe and crossover______________
6e] Wastegate – mechanical or vacuum? _______vacuum_______
7] Temperature-related Issues:
7a] Single or dual thermostats? _____single_______
7b] Have you replaced them lately? Manufacturer of replacements? _______yes ac delco from heath__
7c] Have you pulled and cleaned Radiator and coolers lately? __yes 5000 miles ago__________
7d] Have you replaced the fan clutch? Manufacturer of replacement? __HD from heath______
7e] (winter) Have you tested your antifreeze? Good to what temp? _____no_____
7f] (winter) Are you using a winter grille cover? _no__________
