My truck keeps stalling?

[95 Sierra 2500 6.5 turbo]

I'll be driving into work say an hour into my drive and my truck will randomly stall. Is there anyone who can maybe give me some advise. Would it be my PMD? I just got a brand new PMD put in last year at Steve's Diesel in Bowmanville.

 

[Matt Bachand]

I'll be driving into work say an hour into my drive and my truck will randomly stall. Is there anyone who can maybe give me some advise. Would it be my PMD? I just got a brand new PMD put in last year at Steve's Diesel in Bowmanville.

Where is it mounted? If its anywhere inside the engine bay it probably toasted itself in the year. I had a intake mounted replacement heatsync lasted only 3 months. I put Heath's unit on the mudshield undertruck, no issues, many years later.

Must remove/clean/wirebrush every ground you see underhood. Super sensitive electrical fuel injection.

 

[Matt Bachand]

http://www.thetruckstop.us/forum/showpost.php?p=73211&postcount=1

Fill out that checklist so we know whats really going on with your rig.

 

[Burning oil]

Matt is right.
Get a new remote mounted Dtech and be done with it.
Im running a special price on the complete kit $289 + shipping.

Also, Welcome to TTS

 

[95 Sierra 2500 6.5 turbo]

Checklist

Problem: Explain your problem in concise language (ie: Cranks but won’t fire). when hot truck randomly stalls.

Demographics: tell us about your truck and your ambient conditions:

- Year: 1995
- Truck model and class (ie: c2500) 2500
- Automatic or Standard Automatic
- Mileage: (indicate miles or km) 361000 KM
- Replaced parts and mods (IP, PMD, chip/PCM, TM, injectors etc) _
PMD (last year)
- Model: ‘S’ or ‘F’ engine, NA or Turbo, EGR? __SLE
- Ambient outside temp: (indicate *C or *F) _0 (C)_________
- What fuel are you using? (#1 Diesel, #2 Diesel, Bio, VO, WVO, etc) _Diesel???________
- What fuel additives are you using? _Lucas Injector Cleaner and Motormaster Fuel Conditioner.
- Where are you located? Oshawa, Ontario

General maintenance: inspect and evaluate the condition of each. When were they last changed?
- Air filter Long Time
- Fuel filter Tuesday this week.
- CDR Valve? _????
- Coolant – last flushed/replaced at Last summer
- Oil – synthetic/regular, changed at ???___________
- Batteries – state of charge, (matched set) replaced at _New

- Battery cables and grounds (removed, cleaned and tightened): _Nope Not yet
- Glow Plugs - how many miles on them? 100,000 What type? ???

- Injectors - last changed at ??????


History: (Describe how the problem first appeared.)
- What were you doing when it happened? I was driving on a busy street in Toronto, stop and go traffice an hour into the drive and as i would take my foot off the gas and the Rpm would come down it would stall.
- How was the truck running fine before this problem appeared? _Yeah

- Has this problem ever happened before? _Yes and got PMD Changed.
- Describe any related factors that might be part of the problem. ______________
- Have you checked for DTC (Diagnostic Trouble Codes)? (Y.N) No And? ________


Diagnostics:

1] Starting:
1a] Does the engine start? ___Yes______
1b] Does the engine crank over? _Yes_______
1c] Are your batteries fully charged? ___Yes______
1d] Have you removed, cleaned, and tightened all battery connections? ____No____
1e] Does your Wait to Start light come on for a time? How long? _Dont have one._______
1f] Does your glow plug light come on? ___Yes___ For how long? _15 Seconds________
1g] Do you see smoke from the exhaust while cranking? What color? __White______
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? ____________
2b] Do you get a steady flow of fuel from the water drain (T-handle) ? _________
2c] Loosen the inlet line from the IP – is fuel coming out (Lift Pump on)? ___________
2d] Loosen an injector line and crank the engine - does fuel come out? _________
2e] Do you hear a vacuum (hiss) when you remove the fuel cap? _Sometimes__________

3] PMD / IP Issues
3a] Location of PMD (on pump, on intake, remote mounted) __ON PUMP. Beside intake._________
3b] Condition of Extension harness (if used) Vendor or Homemade? _None Used.________
3c] Condition of grounds / ground wires to IP / PMD. Check Harness. _________
3d] PMD Make: __Stanadyne_________
3e] PMD Age: ___1 Year__________

4] Stalling Issues
4a] Do you experience stalling only when hot? __yes__
4b] Does it stall under particular circumstances? (ie hit bump, or on accel) _accel and after_____
4c] Does pouring cool water over the IP seem to help with restarting? _________
4d] Is stalling momentary (engine recovers)? ____Yes_____
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? __yes_______
4h] Changes to dash lights or instruments during stalling events? __Batterie light comes on and Check gauges_________

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? ___N/A____
5c] Any white slime on oil surfaces (dipstick, CDR, oil Fill cap)? __N/A________
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 (boost, EGT) ? ___No________
6b] Maximum boost under load? ____?________
6c] Have you added a performance PCM (reflash) or Chip? ___NO___________
6d] Have you changed exhaust / downpipe / crossover? _____No___________
6e] Wastegate – mechanical or vacuum (OEM)? ____NO__________

7] Temperature-related Issues:
7a] Single or dual thermostats? ___Single_________
7b] Have you replaced them lately? Manufacturer of replacements? _____Yes, and N/A____
7c] Have you pulled and cleaned Radiator and coolers lately? __No__________
7d] Have you replaced the fan clutch? Manufacturer of replacement? __No______
7e] (winter) Have you tested your antifreeze? Good to what temp? __No________
7f] (winter) Are you using a winter grille cover? ____NO_______

 

[Burning oil]

3a] tells me the PMD is fried. It needs to be outside engine compartment.

 

[vail426]

I think it would be wise to check fuel pressure during driving just to eliminate a fuel delivery issue. Replace and move the PMD in any case.

 

[Dieseldad97]

I'll be driving into work say an hour into my drive and my truck will randomly stall. Is there anyone who can maybe give me some advise. Would it be my PMD? I just got a brand new PMD put in last year at Steve's Diesel in Bowmanville.

I agree with PMD failure. If you decide to buy a relocation kit and new pmd, buy from Burning Oil (Leroy). His service, price and products are second to none.