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FYI: the air bleed is there on the side of the fuel manager head, opposite the Primer Pump - the WIF water bleed is at the bottom of the filter element.
The fuel heater connector in the black plastic heater puck, closest to the brake master cylinder, deteriorates and leaks fuel - this allows fuel in the filter to drain back to the tank when the engine is off, causing air bubbles\pockets in the filter manager head, resulting in engine misfire, skipping, hesitation, low power\no power, stall, engine dead in severe cases.
Positive test for this failure is to pump the prime button till it becomes difficult to push, at which time the filter\head will be under pressure and any leaky heater connector should become evident - dealer warranty service required in some cases, other options available.
The test will also reveal any leak from the fuel manager head to the CP3 injection pump - it does not test for leaks from the fuel tank to the fuel manager, which testing will require pressurizing the fuel tank
a.) Air-bubble related stall, fuel starvation, has no black smoke, just runs ruff, stalls, misfires, full WOT usually won't run (insufficient fuel) - replace fuel manager head, hose\clamps on plastic tubing at tank, etc
b.) Bad-fuel related stall is usually accompanied by black smoke, otherwise similar symptoms as fuel starvation stall, may require full WOT to keep running, lots of black smoke - drop\drain tank, flush system, new filters
c.) Contaminated fuel (gasoline, water, etc) usually accompanied by black smoke, ruff running, 'backfire' symptom, may require full WOT to keep running - drop\drain et al
FYI: no matter what you've heard, salt and sugar will not dissolve in Diesel fuel or gasoline - 'nuther old wives' tale - your filter should trap crystals B4 it gets to the injection pump - will dissolve in water, but WIF is another problem, anyway
d.) *Algae infestation clogs fuel filter, fuel starvation symptoms - if fuel is also nasty\watery\rusty (which is like Viagra to them randy little algaes), usually accompanied by black smoke and ruff running until filter clogs - drop\drain tank et al
e.) Damp, wet, soaked air filter is usually accompanied by black haze to black smoke, with ruff running, low power, may require full WOT to keep running, lots of black smoke - new filter heals it
None of the above are limp mode, tho they can result in CEL\limp if not addressed early on - limp mode is ECM-reduced power, no Boost, NO black smoke, TCM will not shift transmission into higher ranges, certainly no overdrive, CEL will be on, several DTC's will be stored for later diagnostics - no misfire, no ruff running, full WOT gets no response, just smooth low-power to get you home - if failure heals itself, and some can self-heal, engine will recover after IGN switch is cycled OFF, then ON-START-RUN
None of the listed items will 'permanently' recover when IGN power is cycled
*Them Diesel-swilling algae proliferate only at the water\fuel interface - clean dry fuel = no proliferation
yrmv
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'05 CRD Limited
Pricol EGT, Boost
GDE Hot '11; EDGE Trail switched
SEGR; Provent; Magnaflow;
Suncoast T\C, Transgo Tow'n'Go switch;
Cummins LP module, Fleetguard filter, Filterminder
2.5" Daystar f, OME r; Ranchos; K80767's, Al's lifted uppers
Rubicons, 2.55 Goodyears
Four in a row really makes it go
Last edited by gmctd on Sat Mar 29, 2008 12:06 pm, edited 1 time in total.
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I stood at the service desk for 3.5 hours while this evolved. Otherwise Id have taken a big one, I am sure. So it was the same codes as before (engine speed yada yada, cant remember) and they admitted they didnt really know what was going on last time either. Tech calls the engineers at Chrysler. I stand at desk outside the whole time. He was on hold for at least 2 hours.. in the mean time I asked if that counted as labor charges, it does....anyhow, I caught the bugger before he made it to the service manager and asked what he learned. They told him to replace the wire between the ECU and the TCU. If that didnt fix it then replace the TCU. I very calmly told them (in discussion form) that I am not paying the $100 diagnostic fee for that information, nor am I paying labor associated, nor am I paying for a new TCM since Chrysler has reflashed the thing with recalls etc....They said yes I am.. I said hang on I am going to call some one you dont want to talk to as I walk out the door dialing on the cell phone...about 30 sec later the service manager comes running out "John! We are going to put a new TCM in under warranty!" and we all lived happily ever after (fer a week so far) ...
