long cranking to start - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 11-01-2008, 04:59 PM Thread Starter
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long cranking to start

1996 ford F350 7.3 The truck will start every time but only after cranking it for about 10 seconds.

There are no codes coming up ont he computer.

I have noticed that the injectors are not firing for the first 10 seconds and as soon as they do the truck fires.

Glow plugs, relay, hpop, pcm, fuel pump have all been replaced very recently.

Any ideas?
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post #2 of 11 Old 11-01-2008, 05:11 PM
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batteries??

if you see a light at the end of the tunnel, it's probably just a photon torpedo
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post #3 of 11 Old 11-01-2008, 09:18 PM Thread Starter
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No batteries are good and cranks fast the injectors are not starting until the 10 seconds of cranking
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post #4 of 11 Old 11-01-2008, 10:01 PM
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crank position sensor


94.5 f350 dually
216k miles
straight piped
intake
fuel shim
ts chip
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post #5 of 11 Old 11-01-2008, 10:46 PM Thread Starter
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[CPS has been changed as well
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post #6 of 11 Old 11-01-2008, 11:19 PM
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How many miles? HPOP may be taking time to get the pressure up. Needs 500-550 psi before the computer turns on the fuel.
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post #7 of 11 Old 11-03-2008, 09:53 AM
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Check your flex lines (rubber or synth) in the fuel route. I know that with old Jeeps, if you have a cracked hose or a rust hole in a hard line, that will allow the fuel to bleed down, keeping the thing from starting up right away (or staying started, with older carbureted units) because the fuel isn't right there and ready to go. Just a thought.

Nick

1995 F250 XLT 7.3T (on donor '97 engine with 180xxx miles) 4x4 - LuK SMF, Diamond Eye 3" downpipe to 5"straight-pipe exhaust. ZF5 manual trans, Curt hide-away gooseneck hitch, Super Duty suspension conversion.

1997 F250 XLT 7.3T - 2wd E4OD, alloy wheels w/ bald tires, gooseneck hitch, pretty much bone stock. Soon to become a trailer, spare tires, spare parts, and scrap.
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post #8 of 11 Old 11-03-2008, 06:12 PM
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Sounds to me like the HPOP is bleeding off.

~Kenny~


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post #9 of 11 Old 11-03-2008, 07:04 PM
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id check the idm,injector driver module.

96 F250 460-auto-ext.cab-long box-4.10-152k-10mpg all day running or not.....
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post #10 of 11 Old 11-05-2008, 06:54 PM
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injector o-rings, the top o-ring will go out and let HPO to blow right past. you have to have aleast 500 psi of HPO to start

MATCHING COLOR HIS AND HERS PSD!
HIS: 97,F250,

HER'S: 97,f-250,

some bolted on stuff by BDP and tuned by tony wildman



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