Possible tranny issue e40d - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 6 (permalink) Old 05-22-2012, 01:53 PM Thread Starter
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Location: Moore, Oklahoma
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Possible tranny issue e40d

I have another thread and it hasn't seen much to any response, so I'll throw it in here also.

Last nite, at 60mph, rpms jump from 1500 to 2k then back down, boost seemed to stay the same though.

did it again, then didn't do the last time I tried to get it to do it.

Any idea's?

I hooked up my mt2500 snap on scanner in the driveway, pulled a p0470 and p0476 codes (non tranny related), but while running the koer test the truck died abruptly, scanner said test aborted, but truck fired right back up.
but then I couldn't get it to communicate with the pcm for some reason, tried 3 times and gave up.

any ideas on the tranny issue?

It was rebuilt about 3k ago before I bought the truck, and I've known the owner for 20 years so I don't doubt what he says was done, or parts installed.

thanks

Chris

Moore, Oklahoma



1996 Ford F350 4x4 Crew Cab PSD
6637 tymar
285-75-16 BFG All Terrains/Weld Wheels
3:55 gears
Automatic with billet convertor, tugger and alto discs
New Gearhead Tunes:
1 heavy tow
2 stealth mode
3 tow/econ
4 street perf
5 all out
6 high idle
1.0 housing
exhaust
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post #2 of 6 (permalink) Old 05-25-2012, 12:23 AM
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Re: Possible tranny issue e40d

Could it have been the tc unlocking? Any issues with the stoplight wiring? Might not be a trans issue at all, the tc clutch will unlock if it gets a signal from the stoplamp switch or cruise deactivation switch. Try driving 60 again and just tap the brake pedal without letting off of the throttle and see if it acts the same?

Newest project: 1995 F350 CC/DRW 2WD E4OD. 3" DP, 4" Diamond Eye system. But I'm still fixin' the broken stuff......
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post #3 of 6 (permalink) Old 05-25-2012, 04:20 AM
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Re: Possible tranny issue e40d

double check all your brake lights including third brake lamp . My truck would do just about what your describing and found third brake lamp out. Replaced lamp and has worked fine since.

96 cclb f350.
idm mod,
gauges-boost/pyro/trans temp
afe stage 2 intake
dp to 4" straight pipe
studs, springs, pushrods
srp1
intercooler
electric fuel convertion
238/100
dp-tuner f6
T-4 mount and s470.
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post #4 of 6 (permalink) Old 05-26-2012, 03:38 PM Thread Starter
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Re: Possible tranny issue e40d

well,
I pulled the tranny 2 part short side harness that goes to the tranny, did a cont test and its fine, all pins plugged in, no breaks I could find.

checked brake lights all are working including 3rd.

drove it about 150 miles yesterday while pulling my lawn trailer and no issues, all highway driving.

ODD thing is my reverse lights haven't worked in years, and now all of sudden they work!
I'm betting its the same issue, but I'm wondering if it could be something in the column?

I'd checked the bulbs and wiring before and was getting 0 power to the socket and wiring as far up the harness from the socket as I could get, and now it works.

Only things I did was check brake lights (without removing them) just visually, removed e brake to access chip and it was tight and didn't budge, and pulled the harness I spoke of up top.

Chris

Moore, Oklahoma



1996 Ford F350 4x4 Crew Cab PSD
6637 tymar
285-75-16 BFG All Terrains/Weld Wheels
3:55 gears
Automatic with billet convertor, tugger and alto discs
New Gearhead Tunes:
1 heavy tow
2 stealth mode
3 tow/econ
4 street perf
5 all out
6 high idle
1.0 housing
exhaust
zilla68 is offline  
post #5 of 6 (permalink) Old 05-26-2012, 03:39 PM Thread Starter
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Re: Possible tranny issue e40d

Quote:
Originally Posted by bracketracer View Post
Could it have been the tc unlocking? Any issues with the stoplight wiring? Might not be a trans issue at all, the tc clutch will unlock if it gets a signal from the stoplamp switch or cruise deactivation switch. Try driving 60 again and just tap the brake pedal without letting off of the throttle and see if it acts the same?
yes I think that is what it was doing, Im going to run the same route on sunday when I head out to mow again and see if maybe it does it again, as it is not really hilly or anything like that here, which would cause it to do that.

Chris

Moore, Oklahoma



1996 Ford F350 4x4 Crew Cab PSD
6637 tymar
285-75-16 BFG All Terrains/Weld Wheels
3:55 gears
Automatic with billet convertor, tugger and alto discs
New Gearhead Tunes:
1 heavy tow
2 stealth mode
3 tow/econ
4 street perf
5 all out
6 high idle
1.0 housing
exhaust
zilla68 is offline  
post #6 of 6 (permalink) Old 05-27-2012, 02:26 AM
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Posts: 630
Re: Possible tranny issue e40d

Your reverse light go thru the transmission range sensor. Might have an issue there? They don't like having fluid inside them. If your manual shaft has a slight leak it may have contaminated the range sensor?

Newest project: 1995 F350 CC/DRW 2WD E4OD. 3" DP, 4" Diamond Eye system. But I'm still fixin' the broken stuff......
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