Problem: Explain your problem in concise language (ie: Cranks but won’t fire). ____yes
Demographics: tell us about your truck and your ambient conditions:
- Year: 1994______
- Truck model and class (ie: c2500) Suburban 2500
- Automatic or Standard Aut
- Mileage: (indicate miles or km) 37.000km
- Replaced parts and mods (IP, PMD, chip/PCM, TM, injectors etc) IP 17.000km PMD Electric fuelpump
- Model: ‘S’ or ‘F’ engine, NA or Turbo, EGR? 6.5 Turbo EGR
- Ambient outside temp: (indicate *C or *F) 0-10C
- What fuel are you using? (#1 Diesel, #2 Diesel, Bio, VO, WVO, etc) It´s called City Diesel cleaner
- What fuel additives are you using? ___________
- Where are you located? Sweden
General maintenance: inspect and evaluate the condition of each. When were they last changed?
- Air filter _________
- Fuel filter Yes
- CDR Valve? _________
- Coolant – last flushed/replaced at _____________
- Oil – synthetic/regular, changed at ___________
- Batteries – state of charge, (matched set) replaced at _____________
- Battery cables and grounds (removed, cleaned and tightened): ______________
- Glow Plugs - how many miles on them? _________ What type? _____________
- Injectors - last changed at _______________
History: (Describe how the problem first appeared.)
- What were you doing when it happened? Filling diesel, first it stopped when in idle, start again, turn off refueled strt and go about 500 meters then dead.
- How was the truck running fine before this problem appeared? ok some short shutdown 0,5 sec when driving 1-2 times week
- Has this problem ever happened before? not for me.
- Describe any related factors that might be part of the problem. ______________
- Have you checked for DTC (Diagnostic Trouble Codes)? (Y.N) Y And? was before the garge said it,s was IP and PCM then stand several months now, no dtc
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? no?
1f] Does your glow plug light come on? yes For how long? 4-5 sec
1g] Do you see smoke from the exhaust while cranking? What color? no
1h] Does the Service Engine Light Glow during Start/bulb check? yes
2] Fuel Issues (if not running):
2a] Can you hear your lift pump working? yes new
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? no ther is made a hole in the cap?
3] PMD / IP Issues
3a] Location of PMD (on pump, on intake, remote mounted) remote
3b] Condition of Extension harness (if used) Vendor or Homemade? ??
3c] Condition of grounds / ground wires to IP / PMD. Check Harness. not checked all.
3d] PMD Make:
3e] PMD Age:
4] Stalling Issues
4a] Do you experience stalling only when hot? ____________
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? _______
5c] Any white slime on oil surfaces (dipstick, CDR, oil Fill cap)? __________
5d] Excessive white smoke from exhaust on cold start? _________
5e] Excessive black smoke from exhaust under hard acceleration? __________
6] Performance Issues
6a] Do you have gauges (boost, EGT) ? ___________
6b] Maximum boost under load? ____________
6c] Have you added a performance PCM (reflash) or Chip? ______________
6d] Have you changed exhaust / downpipe / crossover? ________________
6e] Wastegate – mechanical or vacuum (OEM)? ______________
7] Temperature-related Issues:
7a] Single or dual thermostats? ____________
7b] Have you replaced them lately? Manufacturer of replacements? _________
7c] Have you pulled and cleaned Radiator and coolers lately? ____________
7d] Have you replaced the fan clutch? Manufacturer of replacement? ________
7e] (winter) Have you tested your antifreeze? Good to what temp? __________
7f] (winter) Are you using a winter grille cover? ___________
List and describe any other factors which are not addressed in this checklist. We can’t see, hear, smell, or touch your truck, so the more descriptive information you can give, the more likely it is that somebody can assist you.
Check PMD, PCM but used same proom, Check stop solenoid, water, air and change fuel and IP are changed. I am almost sure that it is something electrical because the short stop before 0.5 sec approximately, when running. Read that it could be the EGR valve, wastegate control and transmission solenoid They Are on the same quad driver circuit? How to test C-time and injection pulse?
Grateful for any tips.
/Bengt
_________________________________
Demographics: tell us about your truck and your ambient conditions:
- Year: 1994______
- Truck model and class (ie: c2500) Suburban 2500
- Automatic or Standard Aut
- Mileage: (indicate miles or km) 37.000km
- Replaced parts and mods (IP, PMD, chip/PCM, TM, injectors etc) IP 17.000km PMD Electric fuelpump
- Model: ‘S’ or ‘F’ engine, NA or Turbo, EGR? 6.5 Turbo EGR
- Ambient outside temp: (indicate *C or *F) 0-10C
- What fuel are you using? (#1 Diesel, #2 Diesel, Bio, VO, WVO, etc) It´s called City Diesel cleaner
- What fuel additives are you using? ___________
- Where are you located? Sweden
General maintenance: inspect and evaluate the condition of each. When were they last changed?
- Air filter _________
- Fuel filter Yes
- CDR Valve? _________
- Coolant – last flushed/replaced at _____________
- Oil – synthetic/regular, changed at ___________
- Batteries – state of charge, (matched set) replaced at _____________
- Battery cables and grounds (removed, cleaned and tightened): ______________
- Glow Plugs - how many miles on them? _________ What type? _____________
- Injectors - last changed at _______________
History: (Describe how the problem first appeared.)
- What were you doing when it happened? Filling diesel, first it stopped when in idle, start again, turn off refueled strt and go about 500 meters then dead.
- How was the truck running fine before this problem appeared? ok some short shutdown 0,5 sec when driving 1-2 times week
- Has this problem ever happened before? not for me.
- Describe any related factors that might be part of the problem. ______________
- Have you checked for DTC (Diagnostic Trouble Codes)? (Y.N) Y And? was before the garge said it,s was IP and PCM then stand several months now, no dtc
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? no?
1f] Does your glow plug light come on? yes For how long? 4-5 sec
1g] Do you see smoke from the exhaust while cranking? What color? no
1h] Does the Service Engine Light Glow during Start/bulb check? yes
2] Fuel Issues (if not running):
2a] Can you hear your lift pump working? yes new
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? no ther is made a hole in the cap?
3] PMD / IP Issues
3a] Location of PMD (on pump, on intake, remote mounted) remote
3b] Condition of Extension harness (if used) Vendor or Homemade? ??
3c] Condition of grounds / ground wires to IP / PMD. Check Harness. not checked all.
3d] PMD Make:
3e] PMD Age:
4] Stalling Issues
4a] Do you experience stalling only when hot? ____________
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? _______
5c] Any white slime on oil surfaces (dipstick, CDR, oil Fill cap)? __________
5d] Excessive white smoke from exhaust on cold start? _________
5e] Excessive black smoke from exhaust under hard acceleration? __________
6] Performance Issues
6a] Do you have gauges (boost, EGT) ? ___________
6b] Maximum boost under load? ____________
6c] Have you added a performance PCM (reflash) or Chip? ______________
6d] Have you changed exhaust / downpipe / crossover? ________________
6e] Wastegate – mechanical or vacuum (OEM)? ______________
7] Temperature-related Issues:
7a] Single or dual thermostats? ____________
7b] Have you replaced them lately? Manufacturer of replacements? _________
7c] Have you pulled and cleaned Radiator and coolers lately? ____________
7d] Have you replaced the fan clutch? Manufacturer of replacement? ________
7e] (winter) Have you tested your antifreeze? Good to what temp? __________
7f] (winter) Are you using a winter grille cover? ___________
List and describe any other factors which are not addressed in this checklist. We can’t see, hear, smell, or touch your truck, so the more descriptive information you can give, the more likely it is that somebody can assist you.
Check PMD, PCM but used same proom, Check stop solenoid, water, air and change fuel and IP are changed. I am almost sure that it is something electrical because the short stop before 0.5 sec approximately, when running. Read that it could be the EGR valve, wastegate control and transmission solenoid They Are on the same quad driver circuit? How to test C-time and injection pulse?
Grateful for any tips.
/Bengt
_________________________________
