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post #1 of (permalink) Old 12-23-2017, 02:09 PM Thread Starter
schunter1969
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4R100 Transmissions Issue On The Road Need Advice ASAP

Just in time for Christmas... ok so I was leaving last night for the inlaws, about to get on the interstate when my transmission temperature gauge quickly went to the yellow. I pulled off to the side and sat there idling. Once it cooled off I shifted into all the gears everything seemed fine, got back onto the road and the temperature gauge gradually went to the yellow. Soooo slowly went home. This morning I dropped my transmission pan, replaced the filter, cleaned the magnet, reinstalled the pan and then did a transmission flush. I refilled with Merc V, drove around and then topped her off. No leaks, shifting fine. Backed up the truck and back on the road for the inlaws. Everything is shifting fine but for whatever reason after 50-55mph the temp starts to go up but if I keep it below 55mph then it says around 235 deg F. When I was on the interstate the temp went into the red, got off on the next ramp. No leaks so I am thinking maybe the fluid is low, it wasn’t low but I went ahead and added 2 more qts of merc V. Back on the interstate and same thing, after 55mph temp goes up. Got into the red one more time before finally making it to the inlaws ramp. Once off the interstate temp went down. I checked underneath again when I got to the inlaws and transmission fluid is everywhere toward the back. So did I just screw myself by over filling it? Do I have a blocked cooler? I checked and I do not have an inline filter. Bad pump? Help!
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2002 F250 Lariet 4x4 SB Dorsey St. 2 4R100 Manual T-Case with PHP Hydra running Dorsey, Jelibuilt, and 1023 custom tunes. Drivetrain mods: one piece driveshaft, 6.0 Tranny Cooler, Inline Tranny Filter. Turbo Mods: 360 bearing, 66/88 billet compressor wheel, ported housing w/ 4in. intake, TurboMaster wastegate controller, Banks elbow outlet to 4" Down Pipe to 5" straight pipe, non-EBPV pedestal, Riff Raff Boost fooler, and 470ohm resistor in place of the EBPV and wastegate solenoid. Intake Mods: DIY 4" aluminum pipe to 6637 filter, CCV routed to the rear near exhaust tip, AIH delete with 470ohm resistor on the solenoid, polished intake manifold/spider and plugged wastegate solenoid port. Fuel/Oil Mods: Riff Raff banjo fuel bolts, Riff-Raff fuel FPR black spring set to 70 psi, HPX, CNC HPOP oil lines with check valve delete Other Mods: Coolant Filter, all aluminum radiator, boost, tranny fluid temp, EGT, and fuel pressure gauges, Pioneer AVH-NEX4200 Stereo, 2008 Hitch w/ Backup Camera, 2008 Tow Mirrors, Recon headlights
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