Hi, trannie question, posted last night but in wrong category - Ford Powerstroke Diesel Forum
 
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post #1 of 4 Old 09-30-2009, 08:28 AM Thread Starter
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Hi, trannie question, posted last night but in wrong category

Hi All,
I have two 7.3 powerstrokes. a 95 E-350(First official production year after the 94 changeover from mechanically injected 7.3 and somewhat an animal unto itself so I have learned shortly after buying it a month ago), and an 01 pickup(as i understand it the last year it was used in the superduty pickups).
Can someone give me some solid information on automatic transmission application and how it impacts the computer system on the 95 van. I know gone are the days of "if it bolts up, it'll work" when it comes to electronically controlled trannys. I would like to know if the tried and true Mechanical C-6 workhorse from the old 7.3 will bolt up and function properly as a replacement to the electronically controlled E4OD? or will it mess with or damage the ECU or cause engine functionality/performance issues since the computer won't get any transmission input signals? Please only post an answer to these questions as gospel if you have more than just a well I heard of a guy on the other side of town experience or definitive knowledge on this. If you post an opinion or hypothetical probability please identify it as such. I am on a shoestring budget as is and the guy that sold it was less than honest on the auction listing and hightailed it out of there after I paid him so I was stuck with a project with a lot of issues and dont have time for goose chases. But the van configuration is what I need so I am biting it and doing the repairs or mods as necessary. The tranny that is in this vehicle is E4OD and it shift's really late and really hard, downshifts early and hard when I let off the throttle. And when I put it in reverse or L1 with foot on the brake the Torque converter clutch engages enough to kill the motor but doesnt seem to slip in forward motion. I'm looking for a diagnostics computer to resolve this issue. I have already tried a filter change with no positive results, in the meantime any insight of likely culprits would be appreciated including the anyone that may have technical insight about Lucas tranny conditioner and it's positive and negative effects on a transmission and if it would resolve the symptoms as described. Is it just a snake oil that swells seals like what happens when you try to clean old rubber brake cylinder plungers in gasoline and cause more problems than it solves in the long run or is it a truly safe detergent and lube that will do what it claims without damage and somehow stops seal leaks by depositing material without long term side effects.
thanks in advance for any useful information,
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post #2 of 4 Old 09-30-2009, 08:41 AM
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No the C6 will not bolt up to a powerstroke.
Sounds like you are in need of a rebuild

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post #3 of 4 Old 09-30-2009, 10:38 AM Thread Starter
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thanks Dave

A rebuild need wouldn't surprise me, but since there are different symptoms between Drive and L1 logic seems to indicate maybe electronic or valvebody issue, but this will be the first Automatic I have worked on in 20 years of repairing my own vehicles so I claim zero knowledge on the subject.
Resources on this subject of what fits what seem somewhat scarce and the Ford dealer is about as helpful as a rat chewing through the air filter to build a nest on the clean air side of the airbox.
I am trying to get a feel for the differences between the two as I explore my options. What are the fundamental differences between the two do you know? Is the bell housing bolt pattern different or torque converter bolt patterns different? Do you know what years will bolt up to a 95(the engine was replaced so I'm not even positive it's a 95 engine in there but it does have the old orange rubber elbow from aluminum crankcase vent tube.
I know it is probably a lot of work but as a machinist/fabricator I have also toyed with the idea of adding a clutch bracket/pedal/linkage converting it to a top loader manual tranny if I can find one with PTO, which would have been my preference from the start. are there any electronic concerns? Any thoughts? It's a work van so butchering it to make something fit is of little concern or consequence. thanks again for any absolute insight anyone can offer
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post #4 of 4 Old 09-30-2009, 10:40 AM
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E40d or 4r100 will work with any 7.3 just need different programming

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2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake

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