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| 1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
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#1
Sat, March 13th, 2010, 11:47 AM
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I definitely can't explain it Cody, but there was definitely air coming out of the hole. I really hope this fixes my problem, and I am also hoping that some of the extra noise I have been hearing from the motor is coming from that hole.
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Bob- 2003 F250 Lariat 7.3PSD CC SB FX4 Kwik (6637) Filter, RE 2.5" leveling kit, F350 Rear Blocks, TC Lock, Fumoto, EBPV/Exhaust Brake,6.0 Tranny Cooler, AIH Delete, IssPro EV2 Gauges, PHP Phoenix stock, 25tow, 40tow, 65tow, 80dd, 100perf, In-tank mods, Muffler Delete, WW, FRx,HPx, JW Stage 1 Trans, Swamps HV/HF IDM -Pulling a 38' Forest River Sierra 5th Wheel 
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#2
Mon, March 15th, 2010, 07:48 PM
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Alright Guys, I built a boost leak detector and that is the best thing I have ever done! I highly reccomend it to anyone, especially if you are tuned. I was able to determine that without a doubt that bolt hole was leakin like a sieve. One of my orange plenum boots was leaking a little bit, too, so I tightened it down. But it is obvious that that bolt hole was killing my power. When we did the AIH delete plug, we forgot to put that bolt back in! I never generated enough boost in stock tunes to really tell, but I am stoked to see what my truck does towing my camper now with that hole plugged. Thanks for all the help everyone, and by all means, if you haven't done it yet BUILD A BOOST LEAK DETECTOR. It's easy and worth ten times it's weight in gold.
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Bob- 2003 F250 Lariat 7.3PSD CC SB FX4 Kwik (6637) Filter, RE 2.5" leveling kit, F350 Rear Blocks, TC Lock, Fumoto, EBPV/Exhaust Brake,6.0 Tranny Cooler, AIH Delete, IssPro EV2 Gauges, PHP Phoenix stock, 25tow, 40tow, 65tow, 80dd, 100perf, In-tank mods, Muffler Delete, WW, FRx,HPx, JW Stage 1 Trans, Swamps HV/HF IDM -Pulling a 38' Forest River Sierra 5th Wheel
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#3
Mon, March 15th, 2010, 07:57 PM
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Nice! Glad to hear you got it figured out.
To everyone else, if you do this be sure to disconnect and plug your CCV hose or pressure up the system at the turbo itself. Bad things can happen when your crankcase has 20psi in it.
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#4
Mon, March 15th, 2010, 08:26 PM
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Oh crap Dave, that is the first I have heard of that!!! Did I screw something up? I connected my boost leak detector AT the CCV coupler! What do I need to look out for?
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Bob- 2003 F250 Lariat 7.3PSD CC SB FX4 Kwik (6637) Filter, RE 2.5" leveling kit, F350 Rear Blocks, TC Lock, Fumoto, EBPV/Exhaust Brake,6.0 Tranny Cooler, AIH Delete, IssPro EV2 Gauges, PHP Phoenix stock, 25tow, 40tow, 65tow, 80dd, 100perf, In-tank mods, Muffler Delete, WW, FRx,HPx, JW Stage 1 Trans, Swamps HV/HF IDM -Pulling a 38' Forest River Sierra 5th Wheel
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#5
Mon, March 15th, 2010, 09:32 PM
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Crank seal leaks.....
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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#6
Mon, March 15th, 2010, 09:35 PM
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ALright Cody, you know I'm still learning here. I don't even know where a crank-seal leak would manifest itself. Point me in the right direction.
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Bob- 2003 F250 Lariat 7.3PSD CC SB FX4 Kwik (6637) Filter, RE 2.5" leveling kit, F350 Rear Blocks, TC Lock, Fumoto, EBPV/Exhaust Brake,6.0 Tranny Cooler, AIH Delete, IssPro EV2 Gauges, PHP Phoenix stock, 25tow, 40tow, 65tow, 80dd, 100perf, In-tank mods, Muffler Delete, WW, FRx,HPx, JW Stage 1 Trans, Swamps HV/HF IDM -Pulling a 38' Forest River Sierra 5th Wheel
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#7
Mon, March 15th, 2010, 09:47 PM
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Either behind the crankshaft harmonic balancer in the front or as a rear main seal out of the back by the flywheel.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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#9
Tue, March 16th, 2010, 11:23 AM
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This isn't in this forum, so I hope it's ok, but I don't see why it would be a problem:
home made boost leak detector - Ford Truck Enthusiasts Forums
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Bob- 2003 F250 Lariat 7.3PSD CC SB FX4 Kwik (6637) Filter, RE 2.5" leveling kit, F350 Rear Blocks, TC Lock, Fumoto, EBPV/Exhaust Brake,6.0 Tranny Cooler, AIH Delete, IssPro EV2 Gauges, PHP Phoenix stock, 25tow, 40tow, 65tow, 80dd, 100perf, In-tank mods, Muffler Delete, WW, FRx,HPx, JW Stage 1 Trans, Swamps HV/HF IDM -Pulling a 38' Forest River Sierra 5th Wheel
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