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post #1 of 13 Old 06-17-2013, 09:58 AM Thread Starter
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Long crank time

I have had a long crank time on my pickup for a while now and thought that it would go away when I replaced the plug in the back of the passenger head oil galley that was leaking. I've noticed that after I fixed the problem it still had a long crank time. I then had a no start issue that I tracked down to my alternator, but in the process of doing that I had a fuel pressure guage on the pickup and I noticed that as soon as the engine was shut down the fuel pressure dropped to nothing within about 15 sec. I am wondering how long the system should hold pressure and where to check first.

1997 Ford F-350 4x4 7.3L - Stock for now
1998 Dodge Ram 2500 5.9L CTD - Not so stock
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post #2 of 13 Old 06-17-2013, 08:04 PM Thread Starter
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Anyone?

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post #3 of 13 Old 06-18-2013, 12:02 AM
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It has a mech fuel pump, should go to zero pressure as soon as it cuts off, and for you long cranking, does it smoke white while doing so? How old are your glow plugs and glow plug relay?

-Kris-
2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
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Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
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Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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post #4 of 13 Old 06-18-2013, 07:45 AM Thread Starter
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that stuff is fine, they were done when head gaskets were replaced, it starts the same no matter what temp it is, it has been in the 80's and 90's here lately so the glow plugs aren't a factor. I wasn't sure if the fuel pump would hold pressure or not and it will crank for 10 sec or so before it starts and it takes that long to build up 25 psi.

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post #5 of 13 Old 06-18-2013, 08:06 AM
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90F is still "cold", in terms of engine temperature; still needs glow plugs. Is there still a long crank time when the _engine_ is warmed up?
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post #6 of 13 Old 06-18-2013, 08:33 AM
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Well they also need 50psi to start iirc

-Kris-
2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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post #7 of 13 Old 06-18-2013, 08:47 AM Thread Starter
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yeah I can have the engine fully warmed up, shut engine off and immediately try to restart and it cranks for a while before it will start just like first thing in morning or after it has sat. According to the specs from alldata and identifix the fuel pressure should be 25 cranking and 55-65 idle.

1997 Ford F-350 4x4 7.3L - Stock for now
1998 Dodge Ram 2500 5.9L CTD - Not so stock
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post #8 of 13 Old 06-18-2013, 08:49 AM Thread Starter
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I first thought the long crank time was cause I was loosing oil from the oil galley and from hpop and after those were resealed its still the same way so I'm confused.

1997 Ford F-350 4x4 7.3L - Stock for now
1998 Dodge Ram 2500 5.9L CTD - Not so stock
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post #9 of 13 Old 06-18-2013, 09:50 AM
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Check the hpop res? It may be leaking down and not keeping it in there to supply the pressure immediately

-Kris-
2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
351fifty is offline  
post #10 of 13 Old 06-18-2013, 09:52 AM Thread Starter
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Ok, should I check it after it has sat for a while or right after I shut it down?

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1997 Ford F-350 4x4 7.3L - Stock for now
1998 Dodge Ram 2500 5.9L CTD - Not so stock
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