E40 trans
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E40 trans
Good afternoon, I recently purchased a 1996 f150 with 300 6 cylinder and Ed40 transmission. My overdrive button was flashing on the end of my gear shift so I stopped by and had the codes pulled. The codes displayed was PO743- torque converter clutch solenoid and PO 755- shift solenoid b. From the research I’ve done I’ve found my transmission has a solenoid pack in the pan. Are both of these codes related to this pack that I can simply replace or is this two different parts? Truck does not seem to shift into overdrive and clunks going into reverse. Thanks in advance
Lead Driver
Joined: Jun 2021
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Good afternoon, I recently purchased a 1996 f150 with 300 6 cylinder and Ed40 transmission. My overdrive button was flashing on the end of my gear shift so I stopped by and had the codes pulled. The codes displayed was PO743- torque converter clutch solenoid and PO 755- shift solenoid b. From the research I’ve done I’ve found my transmission has a solenoid pack in the pan. Are both of these codes related to this pack that I can simply replace or is this two different parts? Truck does not seem to shift into overdrive and clunks going into reverse. Thanks in advance
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,732
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From: SE Florida
How would the MLPS connector or fluid and filter set those codes? It seems impossible to me.
The two solenoids are in the solenoid body in your E4OD transmission.. You can simply replace it, but the chances are that it won't fix your problem.
Most likely the problem is in the wiring harness between the PCM and the transmission connector on the passenger's side of the trans. You need to determine if the wires to those two solenoids have continuity from end to end, and are not shorted to ground or to power.
The two solenoids are in the solenoid body in your E4OD transmission.. You can simply replace it, but the chances are that it won't fix your problem.
Most likely the problem is in the wiring harness between the PCM and the transmission connector on the passenger's side of the trans. You need to determine if the wires to those two solenoids have continuity from end to end, and are not shorted to ground or to power.
Lead Driver
Joined: Oct 2016
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From: Houston/Sugar Land
OK. You should do as Mark says as he is our resident expert on the E4OD. He was an engineer for Ford for the trans.
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Thank you, I will start on that tomorrow afternoon. I’m a decent mechanic and a average electrician. Any advice or pointers to get me headed in the right direction?
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Yep. Get out your multimeter and follow the directions (below) on what to check.
Most likely the problem is in the wiring harness between the PCM and the transmission connector on the passenger's side of the trans. You need to determine if the wires to those two solenoids have continuity from end to end, and are not shorted to ground or to power.
Lead Driver
Joined: Jun 2021
Posts: 5,221
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How would the MLPS connector or fluid and filter set those codes? It seems impossible to me.
The two solenoids are in the solenoid body in your E4OD transmission.. You can simply replace it, but the chances are that it won't fix your problem.
Most likely the problem is in the wiring harness between the PCM and the transmission connector on the passenger's side of the trans. You need to determine if the wires to those two solenoids have continuity from end to end, and are not shorted to ground or to power.
The two solenoids are in the solenoid body in your E4OD transmission.. You can simply replace it, but the chances are that it won't fix your problem.
Most likely the problem is in the wiring harness between the PCM and the transmission connector on the passenger's side of the trans. You need to determine if the wires to those two solenoids have continuity from end to end, and are not shorted to ground or to power.
This is what I was thinking about, but it didnt apply for the year like I thought. I also didnt realize the trans had passenger side plug
So, in my case, I was thinking what you said Mark... but just incorrectly assumed it went through the MLPS not its own connector. thinking like GM, is why.(I own more gm products)
Water Intrusion of MLP/TR Sensor TSB 95-2-12 by Ford for 89-94
01/30/95
TRANSMISSION - E40D - DIAGNOSTIC TROUBLE CODES - WATER INTRUSION OF THE MLP/TR SENSOR
TRANSMISSION - E40D - POSSIBLE WATER INTRUSION INTO THE MLP/TR SENSOR CAUSING SHIFT CONCERNS AND/OR HARSH ENGAGEMENT CONCERNS
TRANSMISSlON - E40D - SHIFT CONCERNS AND/OR HARSH ENGAGEMENT CONCERNS DUE TO WATER INTRUSION OF THE MLP/TR SENSOR
1989-94 BRONCO, ECONOLINE, F-150-350 SERIES, F-47, F-53, F-59
ISSUE: Some vehicles may exhibit a shift concern and/or a harsh engagement concern due to water intrusion into the MLP/TR sensor and vehicle harness. There may also be a number of different DTC's along with those concerns.
ACTION: Replace the MLP/TR sensor and vehicle harness connector if signs of water penetration are evident. Refer to the following for service details.
SERVICE PROCEDURE
1. Verify the customer concern.
2. Perform normal on-board diagnostics.
3. Inspect the MLP/TR sensor for signs of water contamination.
4. If water penetration is present and/or DTC's have been set, replace the MLP/TR sensor and the vehicle harness connector with the TR Sensor Service Kit (F5TZ-7A247-A).
The TR Service Kit contains:
One (1) TR Sensor
One (1) Connector Assembly
One (1) "Red" Pin Separator Plate
One (1) 6-Pin Grommet
One (1) 8-Pin Grommet
One (1) 7-Pin Grommet
One (1) Instruction Sheet
PART NUMBER PART NAME
F5TZ-7A247-A TR Sensor Service Kit
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage For 1992-94 Models, Basic Warranty Coverage For All Other Model Years
OPERATION DESCRIPTION TIME 950212A Perform Electronic 2.0 Hrs.
Transmission Diagnostics, Replace MLP/TR Sensor
Adjustment Info; "...back-probe the MLP line with a volt meter while in Park, and set it to between 4.277 and 4.736 volts (ideally at 4.5065V, right in the middle of the two limits). As a "double-check" afterward, pull the lever down to 1st gear, and again test the MLP voltage; it should be between 0.293 and 1.167 volts, ideally in the middle at 0.73V..."
Source: by SigEpBlue
Connector Re-Pining; "...The new style Manual Lever Position (MLPS) also called Transmission Range (TR) Sensor comes with a matching vehicle harness connector. The problem is that you have to remove the pins and their wires from the old vehicle harness connector. What ever you do don't pull all the pins out at the same time because you will never figure out were they go. Easiest thing to do is remove one pin at a time and re-install it into the new connector..." Source: by miesk5 at Ford Bronco Zone Forums
Connector Re-Pining in a 90; "...Here is what I have on my 1990 after MLPS Upgrade to F5TP-7F293-AA...First, look at this diagram, specifically the lower connector, for reference... Then I have as follows...#1 - Blank, #2 - Light Blue/Yellow Stripe, #3 - Black/White Stripe, #4 - Blank, #5 - Red/Black Stripe, #6 - Violet/Orange Stripe, #7 - Black/Violet Stripe, #8 - White/Red Stripe; Be advised that Red might be Pink and Violet might be Purple, it is hard to see with a flashlight. And, these wires no longer match up to my Haynes MLPS Schematic
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Update
i went out today to test the wires and when I removed the heat shield protecting the wiring harness on the transmission I noticed someone had attempted to zip tie it down because the ear’s was broken. Can I just replace this plug on the trans side? I also noticed that four wires coming over the top of the trans from the drivers side was burnt but I can’t seem to find where they are supposed to go. The wires are two white, a gray and a black.
i went out today to test the wires and when I removed the heat shield protecting the wiring harness on the transmission I noticed someone had attempted to zip tie it down because the ear’s was broken. Can I just replace this plug on the trans side? I also noticed that four wires coming over the top of the trans from the drivers side was burnt but I can’t seem to find where they are supposed to go. The wires are two white, a gray and a black.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
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From: Kentucky
Yes you can, Ford part number# 3U2Z-14S411-VCA or Motorcraft WPT590. There are aftermarket versions available, but be careful. Be sure to use weatherproof butt splices or solder and heat shrink if you go that route.
Sorry, I cannot help you on that one.
Sorry, I cannot help you on that one.