99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
I agree flushing a cooler 100% clean would be next to impossible. The Ford dealer says they run it for two or three hours on the flusher. Luckily mine was just starting to slip and didn't have a bunch of "parts" in the cooler.
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Ken
2002 F-350 CCLB 4X4, HD4R100 , Riffraff FRx, Riffraff CAC Boots & PRI's, Bellowed Up-Pipes, 4" Diamond Eye exhaust, Powerslot rotors, ATS Ported Compressor Housing, DP Tuner-F6, Autoenginuity, EEC-V Breakout Box, KCM S.S. HPX Line, S&B Filters intake, Quad Autometer gauge pod, Inovations canopy, Banks Big Head wastegate actuator, 6.0L Trans Cooler, Spin-on Transmission filter with custom bracket, Zoo-dad, Dieselsite Coolant Filter, Cobra 29LTD/NW CB, DVD and always looking to do more....
shifts through all gears but i seem to have to step down harder to get this beast moving.. used to be 2000 rpm now 23-2500. once it locks up in overdrive i have more power and better acceleration. also milage stinks. this is my first winter with this truck. starts at 16 degrees- no problem. but no power . i had a diesel suburban before this -stock - and it had much better acceleration. does this sound like a bad converter or trans. it pulls good in overdrive when locked. thanks andy. yes i know diesels have no power until warm. but this happens warm too. i expected this to be much quicker than suburban.
Are you totally set on limiting your issue to the tranny?
Hows boost? look normal? have you checked you up pipes, intercooler hoses etc?
My experience has been:
low boost, poor fuel mileage, and loss of power= either boost leak or exhaust up-pipe leaks.
If it's more of a loss of power ordeal, the tranny is the last place I'd look.
How about fuel filter? Clean fuel bowl? Smell any fuel up under engine which would signify possible bowl drain orings.
How's the engine valley on top? Dry?
just my $.02 worth.
__________________ y2k F250 7.3 psd Calif emissions, ext cab long bed 265/75/R16 E rated tires, 190k miles 4x4 (nv271 manual t-case) 7.3 #1247981 1/18/00 (forged rods), 3.73LSD, non-diode 4R100, Dp tuner stock, 60t 60e 80t 80e, high idle. DIY 6637 air filter, wicked wheel, turbo master WG controller, turbo lifesaver, bellowed uppies, 4" downpipe & exhaust, 203t-stat, triple pod glowshift gauges (egt, tranny, boost), Ride-rite 2330 air bags, BTS VB, Sports a Western plow when the white stuff flies.
Trailers:
I'm usually towing 1 of several trailers I've built.
15ft car hauler (1000lbs empty; 5500lbs loaded)
26ft deck over car hauler (2000lbs empty; 7k loaded)
36ft car hauler (Was tongue pull; have since converted into 5er'. 4500lbs empty; 14k loaded) https://lh5.googleusercontent.com/-g...0/IMG_4130.JPG
There is no way to flush a trans cooler and get all the junk out. If you reuse a trans cooler after a trans failure expect a second trans failure.
This is especially true with the top feed cooler style. The lines input and output from the top of the cooler allowing sediment to never evacuate and fill the bottom. The 6.0 cooler is much larger and the input/ output is from the bottom allowing no sediment to settle.
I need to know what the in line filter next to the white by-pass filter is? Is this the external Transmission Filter and what type of service does it need?
I tried looking it up and it said that it was a Fuel filter, but i thought that they only had one filter one the block for this year and model.
__________________ 2001 Ford F-250 Diesel 4x4 XLT Super Duty 6" Lift with Bilstein shocks 38" Toyo Open Country M/T Rough Country Dual Steering Stabilizer 5000K 55W dual HID headlights 5000K 55W HID Foglights Bully Dog Transmission Temperature Gauge Prodigy P3 Brake Controller Warn Premium Hubs Timken Wheel Assembly 135,000 miles
Last edited by Nyghtryderz; 04-16-2009 at 09:14 AM.
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