Unk issue - Ford Powerstroke Diesel Forum
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post #1 of 10 Old 12-06-2019, 09:48 AM Thread Starter
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Unk issue

06 f250 4x4 6.0 litre with 201,700 miles. stock except for 4”MBRP exhaust and Afe air induction. My issue is when I drive on an long uphill grade and not towing and driving about 75 mph I get a hard shutter. Its like driving a stick shift and letting the clutch out to fast. I lower my speed to about 65 and I am able to climb over grade. There are no codes and the gauges do not change during this issue. Added bullet proof egr cooler and replace with new stock oil cooler at 167,000. New ficum at 165,000. Had a new egr, new turbo, fuel injectors done at 195,000 and still has issue. Fluids changed regularly and mechanic can not duplicate issue any ideas and help would be appreciated
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post #2 of 10 Old 12-06-2019, 10:41 AM
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I had a similar issue with my 2003 at about 250k miles. The issue over time progressively worsened and would occur intermittently even on flat ground and at lower speeds. Look at my signature to see how I went about correcting it. Everything in the signature and more was done all at once and the problem has not reoccurred.
BTL

2003 Lariat 4x4 CCSB 6.0
281,500mi
KC Stage 2 Turbo, KDD heads,
ARP Head studs,
175-30 injectors, Adrenalin HPOP
MBRP 4 SS Turbo back
BPD HD remote air to oil cooler
BPD water pump and EGR Cooler
Hayden mechanical fan clutch
Amsoil 2 micron bypass filter
Mishimoto Radiator, HT thermostat and hoses
Mean Green 220amp alternator
Odyssey 65-PC1750T batteries
Accurate Diesel adj. FP regulator cover
Fass Titanium 125 with 5/8 draw tube
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post #3 of 10 Old 12-06-2019, 10:57 AM Thread Starter
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I am new to site my apologies for being naive but how do I check your signature
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post #4 of 10 Old 12-06-2019, 11:21 AM
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What's your fuel pressure?

-jokester
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2005 F350 CCLB FX4 Lariat
SCT SF3 - Currently running PHP 80hp Daily Driver Tune with Atlas 40 FICM Tune
Edge Insight CTS2 monitor
Edge EAS EGT probe
Edge EAS Fuel Pressure Sensor
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post #5 of 10 Old 12-06-2019, 11:34 AM
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+1 on Fuel pressure or a leaking copper injector washer

Fuel pressure could be dropping off under higher load -- need a gauge to test this
the test port on the fuel bowl will give after filter readings -- M11 thread -- adapters to pipe thread are pretty cheap
a grease gun hose works pretty well to connect the gauge
199373C2 at the CaseIh dealer -- 57" long

Injector copper washer can let compression into the fuel rail -- injectors hold down bolts can back off over time
the bubbles in the fuel rail cause the injectors on that bank to not be able to get enough fuel inside the injector -- so engine seems to miss

In my defense, I was unsupervised
.
2006 F250 Lariat FX4 cclb
Torque Pro and OBDLink MX bluetooth monitor
General note:
For all those wanting a premium silicone sealer Kubota 70000-73764 is the best your gonna find. This is a hybrid gray silicone that uses solvent rather than acid to start the curing reaction, this makes it safe for aluminum and and any surface that involves coolant.
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post #6 of 10 Old 12-06-2019, 12:02 PM Thread Starter
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Not sure on pressure but if it is pressure or anything with injectors wouldn’t it code
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post #7 of 10 Old 12-06-2019, 12:28 PM
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The PCM does not monitor fuel pressure -- why? you ask, ...because Ford wants to sell new trucks -- they only want them to outlast the warranty

So .. gauges that should be on everyone's setup first -- the others are just gravy

1. Fuel pressure -- Life for the injectors -- monitor clogged fuel filters
2. Low system oil pressure (LPOP) -- Life blood of the engine

In my defense, I was unsupervised
.
2006 F250 Lariat FX4 cclb
Torque Pro and OBDLink MX bluetooth monitor
General note:
For all those wanting a premium silicone sealer Kubota 70000-73764 is the best your gonna find. This is a hybrid gray silicone that uses solvent rather than acid to start the curing reaction, this makes it safe for aluminum and and any surface that involves coolant.
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post #8 of 10 Old 12-06-2019, 12:39 PM
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Quote:
Originally Posted by Ksunderwood View Post
I am new to site my apologies for being naive but how do I check your signature
A signature (you can create one too if you want) is the information below the thin line under the posted information. So...if you look at someone's post, you'll see info below the line.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Darryl | Owner/Operator
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post #9 of 10 Old 12-09-2019, 08:57 AM
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Quick help, but no response for several days...???

Mark
06 F250CC SB FX4 Lariat; ARP studs; OEM gaskets; Banks exhaust; DynaTrac Ball joints; RACCCV6000; JimmiJammers; Ravelco; SynchroMax in trans case; Fumoto valves; Harpooned; Blue regulator spring; DashDAQ; PHP FICM; RiffRaff boots; DCPower 270AXP; Power Inverter; Bilstein shocks; BPD EGR cooler, radiator, water pump; SCT w/ SRL+; Rotella ELC Ultra Coolant; X2Power AGM batteries
No-start thread:

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post #10 of 10 Old 12-09-2019, 09:18 AM Thread Starter
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Still have not been able to check fuel pressure. Currently out of town but as soon as able will post thanks for input
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