99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
Re: white smoke with first start up??? bad injector pump?? out side temp 35 - 45
Probably glow plug system, but some white smoke on a cold start is really pretty normal.
Let us know more information, (year, mileage, other symptoms, etc.) and we can provide a better guess.
The powerstroke doesn't have an injector pump. High pressure fuel is "pumped" in the injectors themselves, so you have 8 injector pumps. There is a High Pressure Oil Pump, but that doesn't normally cause those symptoms.
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Re: white smoke with first start up??? bad injector pump?? out side temp 35 - 45
Run a tank of "Diesel Kleen" ( from wallie world) and it will clear that up. Injectors are lookin for some TLC thats all MHO [img]/ubbthreads/images/graemlins/smokin.gif[/img] [img]/ubbthreads/images/graemlins/smokin.gif[/img]
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Re: white smoke with first start up??? bad injector pump?? out side temp 35 - 45
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Probably glow plug system, but some white smoke on a cold start is really pretty normal.
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Exactly. When temps are low, it's normal to see some white smoke on startup, and even lasting a minute or so. It's unburnt, raw fuel that is causing the smoke. Since the engine is cold, you are getting an incomplete burn. It happens.
However, if you think that the smoke is getting excessive, you can check your glow plugs to see if you have a few that are out. A couple of bad glow plugs can cause additional white smoke, and even make it harder to start.
On the top valley side of each valve cover is your UVC harness. The 2 outside wires on each side of each harness are for the glow plugs. Take your multimeter and ohm out each of the pins. Good glow plugs will read between .8 - 1.5 ohms. Some may range just slightly outside of that and still be good. Other readings or infinite resistance will tell you that you have a bad glow plug. If say you find one bad glow plug on one side, it's probably best to replace them all on that same side since you will already have the valve cover off.
Re: white smoke with first start up??? bad injector pump?? out side temp 35 - 45
Thank you all for the responses.
I believe that I'm reading the last post correctly it sounds like I can check the glow plugs with removing the valve cover??
I forgot to say that its a 2000 f250 7.3
I also have antoher question on towing - can the F250 7.3 tow 12,000lbs with out killing the engine?? [img]/ubbthreads/images/graemlins/crazy.gif[/img] [img]/ubbthreads/images/graemlins/crazy.gif[/img]
Re: white smoke with first start up??? bad injector pump?? out side temp 35 - 45
The same engine is in a F450 and some F550 so I do not see why the engine will be an issue. If it were a bumper pull trailer with only 10% of the trailer weight on the hitch you should be good to go.
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2002 F350 Lariat CC 4x4 Auto 4.10 DRW, DP-Tuner F5 live tuned stock, quiet, 40dd, 40, 60, 80 tow, 80e and 120r, B&W GN, BrakeSmart, 'pooned tank, tank and pre-pump mods, 2µ Dahl 100 filter, regulated return, BTS dual HPOP, AC singles with EDM 34 lpm nozzles, AIS, H2e, Spearco 6.0 IC, Hypermax 3.5" dp--> MBRP 4" 304SS exhaust, BTS tranny, 203º T-stat, Chevron ELC, coolant filter, Oilguard bypass with Schaeffer 9000, WranglerNW 200 amp alternator & Optima group 31 batteries, Nippon-Denso starter, SPA gauges, SteveRacer mods, Hella 80/100W 9007s, Hella Micro DE foglights, 1000FF driving lights, 220W backup lights, Stancor contactor, Michelin XPS Traction tires, X-Springs, Bilstein shox, custom bumpers but otherwise stock. Nov 30 '99 build engine with 16 K miles, Fluidampr, Comp Cam 910 springs, Melling LPOP and ARP headstuds.
Re: white smoke with first start up??? bad injector pump?? out side temp 35 - 45
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I also have antoher question on towing - can the F250 7.3 tow 12,000lbs with out killing the engine?? [img]/ubbthreads/images/graemlins/crazy.gif[/img] [img]/ubbthreads/images/graemlins/crazy.gif[/img]
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I have hauled 18,000+ pounds with my F-250. Not on Interstate highways but two lane rural highways at 55-60 MPH. I accelerate slowly working through the gears starting off in compound low and double clutch out of habit (it is jsut the way I was trained by my Dad in his '46 Autocar with a Brownie Spicer). I did upgrade the springs a bunch and run "e" rated tires at max pressure. The problem is not the "Go", it's the "whoa". Even with electric trailer brakes load of 10,000+ pounds can be tricky to control on downgrades. It is very easy to loose control of a heavy trailer going down a grade that is winding. Go slow. If the people behind you become impatient pull off the road when it is safe. Don't let them edge you up to a higher speed than you believe to be safe.
Re: white smoke with first start up??? bad injector pump?? out side temp 35 - 45
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The powerstroke doesn't have an injector pump. High pressure fuel is "pumped" in the injectors themselves, so you have 8 injector pumps.
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Are you writing that the injectors themselves pressurize the fuel to spray or mist in the combustion chamber? How dey do dat?
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Here's a blurb from the service manual
An electronically controlled/hydraulically actuated fuel injector is used.
When the fuel injector is energized, a poppet valve is opened by an electronic solenoid mounted on the fuel injector. High-pressure oil from the high-pressure oil pump flows into the fuel injector and acts on the amplifier piston, forcing the piston plunger downward. As the plunger moves down, the increased fuel pressure closes the fuel inlet check ball. Rising fuel pressure overcomes spring pressure and opens the nozzle check valve. Fuel is then injected into the combustion chamber through the eight spray orifices in the nozzle tip at pressures as high as 18,000 psi. When the fuel injector is de-energized, high-pressure oil on top of the amplifier piston is vented by the poppet valve through the top portion of the fuel injector back to the oil pan.
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