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Old 06-07-2009, 05:28   #1 (permalink)
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HELP with E4OD transmission Problems & EASE diag. software

I am new to the forum and there seems to be a lot of good info up on the forum and it will take me a while to go thru it.

I have started to have shifting problems with my 94 flareside, F150 and have been monitoring the EECM IV with EASE software trying to compare my baseline data (from 03 when I got the software ) with the values now occuring with this shift problem. here is info on it...perhaps you can give me some insight

1994, F150 FLARSIDE PICKUP
TRANSMISSION E40D, 5.0 ENGINE has 160k miles
1 replaced vss on differential
2 replaced MLPS
3 replaced trans filer, drained converter, refilled
4 replaced ECT (engine coolant temp) sensor
5 replaced TPS
6 replaced Idle Control Valve
6 checked solenoid (?) adapter plug on top of transmission
behind the metal guard for loosness, oil/contaminated etc.
7 HAVE NOT REPLACED the MAF or Inlet Air Temp (IAT) yet.

PROBLEM
first thing when cold, the transmission will shift through all the
gears and into OD with smooth operation. Once the engine comes
up to operating temperature (Tstat opens at 190 deg), the transmission
will require me to put the throttle at 1/3 to 1/2 position to cause the
transmission to engage in a somewhat normal patten, but the engine is
sounding like it is in a neutral condition (or at first I thought the fan clutch
was faulty and replaced it but no change) and then the transmission will
engage but will shift with a harsh pattern from 1 to 2 ...MOST times the drive
and OD shifts normally but it is erratic from 2 to 3/OD.

Monitoring it using EASE Diagnostic software, it appears that it is consistant with engine or transmission
temperature reaching normal operation (192 tstat opening) or transmission
temperature being normal.(I know the trans temp sensor is in the transmission
pan area/valve body assembly) I have EASE monitoring software and here are the
values..COLD when it shifts pretty much normally, HOT when it does the harsh shifting.

Also, now sitting all day in the summer heat, in the afternoon after work it harsh shifts all the
time from when I start the vehicle. So, baffeled by it being ok in the mornings when sat all
night but sitting all day makes a difference.

COLD @ 0 MPH
ECT - 89.3
ECTV - 2.54
ECT MODE - COLD
EPC - 8.0 PSIG IDLE (PSIG = 40 WHILE COLD)
EPCV - 10.7 V
IATV- 2.89 V
IAT - 75.5 deg f
TFTV - 2.91 V
TCS - OFF
MAF - 1.42
TPS 1.29 V CLOSED AT IDLE
TORQUE CONVERT CLUTCH MODE OFF
TRANS RANGE SEL VOLT 4.42 V
THESE ARE TAKEN RIGHT AT STARTUP IN THE DRIVEWAY
BEFORE STARTING TO DRIVE.

HOT @ 32 MPH
ECT - 193.4
ECTV - .61
ECT MODE - NORM
EPC - 20.0 PSIG @ 32 MPH
EPCV - 10.4 V
IATV- 2.93 V
IAT - 74.3 deg f
TFTV - 2.29 V
TCS - OFF (TRANS CONTROL SWITCH)
MAF - 1.74 V
TPS 1.45 V
TORQUE CONVERT CLUTCH MODE OFF
TRANS RANGE SEL VOLT 2.10 V
THESE ARE TAKEN AT NORMAL DRIVING SPEED
WITH THE HARSH SHIFTING OCCURING FROM A
STOP THRU THE GEARS IN DRIVE.

HOT @ 50 MPH
ECT - 195.2
ECTV - .60
ECT MODE - NORM
EPC - 40.0 PSIG @ 50 MPH
EPCV - 10.6 V
IATV- 2.79 V
IAT - 79.6 deg f
TFTV - 1.89 V
TCS - OFF (TRANS CONTROL SWITCH)
MAF - 1.95 V
TPS 1.53 V
TORQUE CONVERT CLUTCH MODE OFF
TRANS RANGE SEL VOLT 2.10 V
THESE ARE TAKEN AT NORMAL DRIVING SPEED
WITH THE HARSH SHIFTING OCCURING FROM A
STOP THRU THE GEARS IN DRIVE.


SO, does anyone have value ranges for these parameters that are the
EXPECTED NORMAL RANGES for comparisons. Any help in diag.
the faulty sensor (those left that have not been replaced) or value being
sent that the PCM does not like and therefore uses the DEFAULT values
stored to cause the protection (limp mode ??) to the transmission and the
harsh shifting.

anyone have the normal resistance/voltage ranges I should be seeing when
hot/cold/normal drive speed around 50-55 mph that I could use for reference
values to help isolate the faulty circuit (if that is the problem). Anyone also
using EASE that can provide info/files/etc of what should be normal.

WHERE is the Torque Converter Clutch....inside the transmission?? can it be
checked for proper operation. WHERE is the shift solenoid...it that easy to replace
in the transmission when I pull the pan,....will I loose any ball valves if I lower it and
replace with another....I have done the wiring check and looked for H2O in the plug
and connections...nice and dry. Can I disconnect this plug...drive and see what
happens without doing any damage...what should/should not happen with this
disconnected while driving.

If when driving, as I approach an exit ramp on the freeway and leave it in drive and
slow down, the engine seems to be racing/faster like in neutral (or no engaged load)
and as I exit and give it gas to accelerate, it takes about 1/3-1/2 throttle position to
cause it to engage the transmission....no matter what actual speed I am going. It
looks like around 25-30 mph on the speedometer it always engages and with begin
to act normally shifting 2-3 and OD.

Does that sound like a pump or solenoid issue??? Fluid was changed/filter ok, no
metal in pan/magnet.....fluid was not bright red but not deep blood red either..no smell
of burning, no contaminents in the fluid, drained the torque converter as well...did
not think about the cooler unfortunately until I have seen the various posts about changing
the fluids.

Well, that is my current challange, all help is appreciated. tom
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Old 06-07-2009, 21:52   #2 (permalink)
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Location: Memphis, TN, USA 38135
Posts: 303
Re: HELP with E4OD transmission Problems & EASE diag. software

There are probably 50 TSBs about the E4OD covering a WIDE range of symptoms (including yours) beginning just after its introduction in '89 & continuing up to ~'95 when most of the faults had been IDed & corrected. The short answer is: you've gotten WAY more life out of it than is usual, so get it rebuilt. Any shop you take it to will include ALL those upgrades & you'll never have another problem from it. It's not cheap, so if anyone offers to do it for less than $700, he's not doing it right. Plan on $1-2K for a good job.
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