7.3L Power Stroke Engine and DrivetrainDiscussion of the 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 am removing my trans in my 01 4X4 Excursion because the front seal started leaking. While I was draining the fluid from the transfer case, I loosened the fill plug, and fluid gushed out, and drained for much longer than I expected. There was over 1 gallon of fluid in the transer case? Could this be cause by a transmission issue? Is there something I need to look at further?
__________________ 02 F250 4X4 CC SWB, Shaved Badges, Four Hidden 6" Hella Fog Lights, Billet Grill, 08 Tow Mirrors, Body Color 05 Front End Conversion, Body Color Door Handles, Harley Headlamps, 4" MBRP T-304 (NO Muffler), AFE Stage II w/Pro Gaurd 7 Filter & Pre-Filter, ATS Housing, Banks Big Head WG Act, 203 Degree Thermostat & Billet Housing, Fumoto Drain Valve, 6.0 Intercooler, FTVB, KCM SS High Pressure Crossover Line, CCV Mod, AIH Plug, Autometer Lunar Gauges, 4" Pro Comp Lift, 315/75/16 Pro Comp A/T Tires, Firestone Ride Rite Rear Air Bags, DP-Tuner 6 Pos Chip, ITP Overboost Reg, Coolant Filter System.
2001 ExcursionLimited 4x4, Shaved Badges, EDGE Juice w/Attitude, 4" Exhaust, AFE Stage 1 Intake, ATS Housing, Banks Big Head WG Act, 6 inch Pro Comp Lift, Eagle Alloy 20's, 325/60's, Over boost Reg, KCM SS High Press. Crossover Line, AIH Plug, Zoodad Mmod, Banks Trans Command, Trans Temp Gauge, High Angle Drive Shaft (Jess) Cowl Hood, 05 Grill, 08 Diff Cover, Line-X Rockers.
Last edited by Notch1320 : 11-21-2009 at 07:06 PM.
there's and upper and a lower plug. The lower is for draining and the upper is for filling it back up. Much like the diff's you fill it in the top plug until fluid comes out.
I first pulled the upper "fill" plug....and that is where the initial gush of fluid came from.
__________________ 02 F250 4X4 CC SWB, Shaved Badges, Four Hidden 6" Hella Fog Lights, Billet Grill, 08 Tow Mirrors, Body Color 05 Front End Conversion, Body Color Door Handles, Harley Headlamps, 4" MBRP T-304 (NO Muffler), AFE Stage II w/Pro Gaurd 7 Filter & Pre-Filter, ATS Housing, Banks Big Head WG Act, 203 Degree Thermostat & Billet Housing, Fumoto Drain Valve, 6.0 Intercooler, FTVB, KCM SS High Pressure Crossover Line, CCV Mod, AIH Plug, Autometer Lunar Gauges, 4" Pro Comp Lift, 315/75/16 Pro Comp A/T Tires, Firestone Ride Rite Rear Air Bags, DP-Tuner 6 Pos Chip, ITP Overboost Reg, Coolant Filter System.
2001 ExcursionLimited 4x4, Shaved Badges, EDGE Juice w/Attitude, 4" Exhaust, AFE Stage 1 Intake, ATS Housing, Banks Big Head WG Act, 6 inch Pro Comp Lift, Eagle Alloy 20's, 325/60's, Over boost Reg, KCM SS High Press. Crossover Line, AIH Plug, Zoodad Mmod, Banks Trans Command, Trans Temp Gauge, High Angle Drive Shaft (Jess) Cowl Hood, 05 Grill, 08 Diff Cover, Line-X Rockers.
Some of the guys have reported that a leaking rear seal on the tranny can pump ATF into the t-case, which would be the cause of the overfill. The t-case only uses 2 qts of ATF.
Sounds like you may need to replace the rear seal on the tranny as well as the front seal.
What is involved in replacing the rear tranny seal? Is there a seal on the input side of the TC as well?
__________________ 02 F250 4X4 CC SWB, Shaved Badges, Four Hidden 6" Hella Fog Lights, Billet Grill, 08 Tow Mirrors, Body Color 05 Front End Conversion, Body Color Door Handles, Harley Headlamps, 4" MBRP T-304 (NO Muffler), AFE Stage II w/Pro Gaurd 7 Filter & Pre-Filter, ATS Housing, Banks Big Head WG Act, 203 Degree Thermostat & Billet Housing, Fumoto Drain Valve, 6.0 Intercooler, FTVB, KCM SS High Pressure Crossover Line, CCV Mod, AIH Plug, Autometer Lunar Gauges, 4" Pro Comp Lift, 315/75/16 Pro Comp A/T Tires, Firestone Ride Rite Rear Air Bags, DP-Tuner 6 Pos Chip, ITP Overboost Reg, Coolant Filter System.
2001 ExcursionLimited 4x4, Shaved Badges, EDGE Juice w/Attitude, 4" Exhaust, AFE Stage 1 Intake, ATS Housing, Banks Big Head WG Act, 6 inch Pro Comp Lift, Eagle Alloy 20's, 325/60's, Over boost Reg, KCM SS High Press. Crossover Line, AIH Plug, Zoodad Mmod, Banks Trans Command, Trans Temp Gauge, High Angle Drive Shaft (Jess) Cowl Hood, 05 Grill, 08 Diff Cover, Line-X Rockers.
What is involved in replacing the rear tranny seal?
Sorry, don't know about that. I couldn't see a seal in the blowup on the 4x4 extension housing. Your tranny shop should be able to tell you about that.
Quote:
Originally Posted by Notch1320
Is there a seal on the input side of the TC as well?
Yes, there's an input seal on the t-case input shaft. Should just be a pry-out and drive in a replacement unless something else is worn.
A PM to Mark Kovalsky here on TDS would help you. He's VERY familiar with these trannies (former Ford tranny engineer).
Does anyone know if this seal can cause fluid from the tranny to overfill the transfer case? My transfer case in my Excursion had one gallon of fluid in it when I drained it. Where is this seal located, and what is involved in changing it?
__________________ 02 F250 4X4 CC SWB, Shaved Badges, Four Hidden 6" Hella Fog Lights, Billet Grill, 08 Tow Mirrors, Body Color 05 Front End Conversion, Body Color Door Handles, Harley Headlamps, 4" MBRP T-304 (NO Muffler), AFE Stage II w/Pro Gaurd 7 Filter & Pre-Filter, ATS Housing, Banks Big Head WG Act, 203 Degree Thermostat & Billet Housing, Fumoto Drain Valve, 6.0 Intercooler, FTVB, KCM SS High Pressure Crossover Line, CCV Mod, AIH Plug, Autometer Lunar Gauges, 4" Pro Comp Lift, 315/75/16 Pro Comp A/T Tires, Firestone Ride Rite Rear Air Bags, DP-Tuner 6 Pos Chip, ITP Overboost Reg, Coolant Filter System.
2001 ExcursionLimited 4x4, Shaved Badges, EDGE Juice w/Attitude, 4" Exhaust, AFE Stage 1 Intake, ATS Housing, Banks Big Head WG Act, 6 inch Pro Comp Lift, Eagle Alloy 20's, 325/60's, Over boost Reg, KCM SS High Press. Crossover Line, AIH Plug, Zoodad Mmod, Banks Trans Command, Trans Temp Gauge, High Angle Drive Shaft (Jess) Cowl Hood, 05 Grill, 08 Diff Cover, Line-X Rockers.
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new @ 184680mi (1/28/10)
), AIS, 
Linear Mode
