HELP!!! BLOWN E40D AGAIN!! - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 06-20-2012, 04:49 AM Thread Starter Rookie
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Ive got a 1997 F250 CC 4x4 Auto 345,000
Ive blown the transmission the last 3 times Ive towed up any sort of a grade
I never let it shift in and out of overdrive, but when its really loaded in 2nd gear it seems to shift into 1st and with all that weight and power on it, it blows the transmission apart! I am wondering if any tuners keep this from happening or if there is anyway I can lock it in second so it doesnt try and downshift at such high RPM. I have a tuner on it, cant remember which one but it has a safe tow mode, but I always just leave it in stock tune for towing.

Any help would be appreciated, this is getting expensive!!
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post #2 of 4 Old 06-20-2012, 05:02 AM
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Get a manual. E40D's are boat anchors from the factory. Unless you have several thousand dollars to put in to it.

Project Frankenstein

1997 Ford F-350, Dually conversion, Cobra 29 LX CB, 12000 watt converter, All LED lights, TW tunes, 4" DP, Napa Intake, coolant filter, 140cc Injectors and lots of running lights.

Originally Posted by XPLOSIV View Post
Thanks. I'll give er a good wackin in the morning.
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post #3 of 4 Old 06-20-2012, 05:06 AM Thread Starter Rookie
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Yep, I know. But that doesnt help, or answer my question at all.
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post #4 of 4 Old 06-21-2012, 10:04 AM
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Locking the PRNDL selector into 2(nd) didn't keep it in 2nd? How much are you towing if you have to be in 2nd to go up hill?

-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, intercooler
-Irate: T-4 kit, IC pipes, 3" Irate Plenums, BASB Turbo
-Stage II trans.
-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, ADRENALINE PUMP
-twin on-board air w/ 10 gal. tank

-Oh, and a 2015 F350 6.7L DRW 4x4

Re-pinning '97 Cali PCM to Federal

Last edited by BigFuel; 06-21-2012 at 10:25 AM.
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