Need U Diesel Doc's Diagnosis - Ford Powerstroke Diesel Forum

 
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post #1 of 6 Old 03-20-2009, 04:43 PM Thread Starter
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Need U Diesel Doc's Diagnosis

Need help finding a power loss problem. 1999 F250, 85K on engine and tranny. DIY Tymar air intake with Zoo Dadd(?) modification. FBD 4" turbo back exhaust, EDGE EVO 3 stage tuner. Stock lift with 2006 18" rims, normal rubber. Problem is this... For those of you that know the route in Utah on I-15 from SLC to St. George.... Felt truck should have pulled a 26' travel trailer(4,250lbs) a bit more stronger than it did. I averaged about 8.5mpg, 60-65 mph @2000-2200 RPM (in OD unless a lot of shifting). A lot of turbo flutter the whole way. Took a lot of summits from 5000' up to 6500'. But I just hated the whole drive. Whats the problem if any or am I just expecting too much from my set up??

I was in stage 1 safe tow.
Probably had about 1K lbs in gear in trailer and truck.

Thank You for any advice
Brian-

goosefrabba
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post #2 of 6 Old 03-20-2009, 04:48 PM
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Was it hot out? I notice when it's hot out my truck doesn't pull as good as the weather is colder. Like 85* and below. You might have just gotten bad fuel. I have a few questions though. How clean is the air filter? Hows the oil level? How clean is the intake on the inside? Last time fuel filters were changed?
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post #3 of 6 Old 03-20-2009, 04:50 PM
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Oh the simplest thing. Have you programmed the truck back to stock? and is it still having the same problem?
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post #4 of 6 Old 03-20-2009, 04:57 PM Thread Starter
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Oil level good and new, air filter bout 50%,have not checked intake inside.
Fuel filter relativly new 1yr old / 5k miles on it. Temp was bout 65-70. Truck went back to stage 3. have not drove it in stock. Will not know untill I pull again if different.

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post #5 of 6 Old 03-20-2009, 05:12 PM Thread Starter
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Power is great fartin around town. Once again on Stage 3.

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post #6 of 6 Old 03-20-2009, 06:22 PM
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What level is your EDGE in? Sounds about right if it is in tow mode. Have your compressor housing changed to ATS ported shroud housing. Next get a good chip, you'll like it better DP,TW,PHP,SWAMPS they will keep your egts under control. Also get a wicked wheel or X wheel 60 to 100 dollars but its well worth the money.

2001 F-250, 6 speed trans, BDP Tunes, Autometer Ultralite gauges
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