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.
Here we do again! First, truck has new CPS,Glowplug relay,& 2 new batteries. I guess my real question is "Is the check valve for the fuel system(to prevent drain off) built into the fuel pump?" [img]/ubbthreads/images/graemlins/shrug.gif[/img] If so where is the best place to buy the pump? [img]/ubbthreads/images/graemlins/shrug.gif[/img] Also gauge always reads full, where is the best place to buy a sending unit??
There is nothing I can help you with but I doubt the fuel system is draining out, even if it did as soon as you turn on the key the system would re-pressurize. I suggest you check the HPOP reservoir tank to make sure it is full of oil. If it is not then that is your problem, it does have an anti-drain back valve and when goes bad it will empty over night. There is a plug you can pull out to check the oil level. If it is empty fill it up and crank it over, if it starts then replace the anti-drain valve. Check the archived forum I do remember there being a lot of posts about this sometime in 03. I can’t give you anymore information but maybe that will help. You can get the tank sending unit any place that sells parts. You could try <font color="blue"> Powerstrokeshop.com </font> they sell parts and are a nice bunch of buys (and sponsors also).
Ditto on the HPOP anti-drain back valve. Check the HPOP reservoir in the morning before you try to start it.
Randy
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1999 ( Build date 10/98 ) 1-Owner F-250 XLT PSD, XLE8 ( started out as XLE4 ), Auto Trans w/sonnax valve tricumulator springs, 4x4, manual hubs, manual shift transfer, 3.73 gears, Tymar intake, open air CCV, A-pillar 3 gauge W/Auto Meter pyro, boost, trans and axle temp in Mag-Hytec covers, Banks 4" monster exhaust, DI 4 Position Flip Chip stock-75-100-110, early 99 turbo conversion W/ ATS BB Turbo, gutted EBPV, Smitybuilt bumper guard, Lund bug deflector, Lund SS cold air grill guard, Wet Okole seat covers w/Powerstroke logo, custom made floor mats ( way better than any store bought mats ) http://community.webshots.com/user/ran440
Buy American, Keep Your Job.
I called local stealership and was told "the pump is nonservicable, no parts or even whole unit" [img]/ubbthreads/images/graemlins/confused.gif[/img]It makes me wonder how they fix trucks in their shop?????? I did get the truck started w/ether but, it ran rough until the air was out of the fuel lines,still make me wonder about pressure in fuel system?? Gas EFI vech. have pressure in the system when shut off,shouldn't a PSD have the same?? [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/confused.gif[/img]
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I called local stealership and was told "the pump is nonservicable, no parts or even whole unit" [img]/ubbthreads/images/graemlins/confused.gif[/img]It makes me wonder how they fix trucks in their shop?????? I did get the truck started w/ether but, it ran rough until the air was out of the fuel lines,still make me wonder about pressure in fuel system?? Gas EFI vech. have pressure in the system when shut off,shouldn't a PSD have the same?? [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/confused.gif[/img]
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That dealer's part's department is crazy....There are HPOPs available.
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I called local stealership and was told "the pump is nonservicable, no parts or even whole unit" [img]/ubbthreads/images/graemlins/confused.gif[/img]It makes me wonder how they fix trucks in their shop?????? I did get the truck started w/ether but, it ran rough until the air was out of the fuel lines,still make me wonder about pressure in fuel system?? Gas EFI vech. have pressure in the system when shut off,shouldn't a PSD have the same?? [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/confused.gif[/img]
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beleive it or not, the PSD fuel system is supposed to bleed down to 0 psi. In fact there is a blled hole in the regulator. They can actually be hard to start if they don't bleed down. Honestly, though, I think your fuel side is not the problem. I think you have a High pressure oil problem and the two leading issues are the afforementioned anti-drainback valve, and a low pressure oil pump not supplying the HPOP reservoir.
Yesterday, before I tried to start my truck, I checked the fuel fliter housing,it was full,then I checked the HPOP oil level (I removed the sensor from the top of the HPOP), oil was about 3/4" from the top,I filled the HPOP to the top and it still did not start! [img]/ubbthreads/images/graemlins/mad.gif[/img] I did the ether trick, and got it started (didn't take very much or very long this time) but, when it started It ran rough until the air was out of the fuel rails (about 20 min.) Does anyone know what holds the fuel in the rails?? [img]/ubbthreads/images/graemlins/shrug.gif[/img] or what should I check now? [img]/ubbthreads/images/graemlins/confused.gif[/img]
ends of the fuel lines where they attach to the heads have check valves in them. I have read where some have clogged. I removed mine and the screens are a pretty course screen.
I have been chasing this same symptom for a while. Please post what you did if/when you find the fix.
Does yours also puff black smoke when trying to start after sitting over night?? Mine does, so I think its getting too much fuel, but I cant trace down why? PCM, Sensor have the timing out of whack, or just a Sh!t motor, I dont know but is has become soooooo frustrating..
With the oil level at 3/4 of an inch from the top I think you can rule out problems with the HPOP and the anti-drain back valve associated with it. Thats right where the oil level should be at start up.
Randy
__________________
1999 ( Build date 10/98 ) 1-Owner F-250 XLT PSD, XLE8 ( started out as XLE4 ), Auto Trans w/sonnax valve tricumulator springs, 4x4, manual hubs, manual shift transfer, 3.73 gears, Tymar intake, open air CCV, A-pillar 3 gauge W/Auto Meter pyro, boost, trans and axle temp in Mag-Hytec covers, Banks 4" monster exhaust, DI 4 Position Flip Chip stock-75-100-110, early 99 turbo conversion W/ ATS BB Turbo, gutted EBPV, Smitybuilt bumper guard, Lund bug deflector, Lund SS cold air grill guard, Wet Okole seat covers w/Powerstroke logo, custom made floor mats ( way better than any store bought mats ) http://community.webshots.com/user/ran440
Buy American, Keep Your Job.
Randy,
Thanks ! [img]/ubbthreads/images/graemlins/grin.gif[/img] I wasn't sure but I thought it might be OK,I had a friend of mine watch the water/fuel drain hose (that comes off the filter housing) the other day and he said that the flow increased when I turned on the key,but not that much, I think I need to check the fuel pressure (Ford says it should be 30PSI KOEO) where can I tap in to check the pressure?? [img]/ubbthreads/images/graemlins/confused.gif[/img]
beside the water/drain valve (where the two fuel lines head out from the filter housing towards the heads) is a plug that can be taken out with an allen wrench... I dont remember the thread info, but take that plug to a hardware store and match it up to a threaded pipe nipple... little bit of fuel line and a gauge and your set..
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beside the water/drain valve (where the two fuel lines head out from the filter housing towards the heads) is a plug that can be taken out with an allen wrench... I dont remember the thread info, but take that plug to a hardware store and match it up to a threaded pipe nipple... little bit of fuel line and a gauge and your set..
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That plug is on the driver's side rear of the fuel filter housing. It's a straight thread - o-ring sealed fitting and is the same as the plug on top the HPOP reservoir, which you can take out for comparison without draining the fuel.
Your local hydraulics shop could make up a hose with a fitting that connects directly to the port for you and eliminate a plumbing nightmare.
OK ! Here is the what I've found!!
First, I wasn't losing fuel (leak down), my injectors wrer sticking and not allowing fuel to pass thru them, [img]/ubbthreads/images/graemlins/bleh.gif[/img] I've ran some Ford additive in the fuel (twice the normal amount per tank full), and to clean the injectors I've changed the oil & filter w/13qts oil & 2qts ATF (Ford Tech suggestion {thanks Opie!!}) and for the first time (since I've owned it) it started w/out ether (I did have the block heater plugged in) and it did not miss when it was first started up!!! [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/grin.gif[/img]
Remember ! I just bought the truch this way, apparently the oil has not been changed on a regular basis, causing the small passages in the injectors to partially plug up. I'm going to change the oil & filter again at the end of the week'and hope it fixes (cleans) the injectors...I'll let you all know.....Thanks!!!!!!!!!!!!! [img]/ubbthreads/images/graemlins/biggrin.gif[/img] [img]/ubbthreads/images/graemlins/biggrin.gif[/img]
i had the same problem with my 99 psd. i took the valve covers off and looked at the injectors while the truck was at idle and found 2 injectors that were not pumping oil out of the return spouts. replaced the 2 injectors and have not had to use ether since and it went for months either not starting or hard starting.
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