E40D: The Importance Of A Clean Trans Harness. Code 62 & More.
this is not a universal e40d help thread.it is limited only to the type of issues listed.there are many reasons for a flashing OD light/codes.here we are talking only about solenoid pack related issues.
if your unsure if your E40D shares these particular type of issues.please start a new thread.do not ask for help here.
you can however go ahead and follow the instructions posted before starting a new thread if your unsure.insuring you've got a clean trans harness,will never be a waste of your time,even if it doesn't resolve your issue at hand.
flashing OD light? getting any of these codes:
26
39
62 this ones popular.it doesn't automatically mean you have a mechanical failure/bad torque converter.in fact,it very rarely means that.
it just means the TCM sensed the converter unlocked due a break in the line between the TCM and the solenoid,it's solenoid has failed in the pack,or you really do have a mechanically failing torque converter.don't ever jump to conclusions and assume the worst.you do that,and you could end up with code 62 still even with a brand new top of the line,high end converter.
62
66
91
92
93
94
98
99
Failed shift solenoid pack plug.
This is an example of what you don't want to see! This is the main harness that the ECM uses to communicate with the transmission. If yours looks like this one,google search:
E4OD solenoid wire harness repair kit 1989-94
(that will be for all idi trucks with the E40D.)
if you have or suspect the plug is dirty,or damaged clip,etc,then it's best to buy it as soon as you can.otherwise the solenoid/tot/converter slip codes will just keep coming back.
once you replace that side,flush the s-pack pins out really good with electrical cleaner.
Ford E4OD Transmission Solenoid Wire Harness Repair Kit 1989 94 99608 | eBay
Let me google that for you
once all dried out good (must be 100%) closely inspect the pins using your mirror.scrape them up and make each brightly shine again if need be.can even drop the pan and just pull it and take your time with the pins if needed.
if you want this issue resolved for the rest of the trucks life with no more hassles,this hour or two job will do the trick.you can't make sure this connection is flawless enough.when you think it's perfect,double your efforts again x2 lol.
she'll run like brand new with perfect connection here.
this is the main line of communication between the trans controller and your transmission.these pins can't be over clean.take your time and make them shine.
upon reasonably,just before plugging it in,apply a nice dose of Permatex 22058 dielectric tune-up grease.
Permatex 22058 Dielectric Tune-Up Grease, 3 oz. Tube
remember now.......anything short of perfect will = failure.flashing od light.limp mode.hassles.removal of plug all the time,spraying of plug.etc.etc.etc......been there done that,got the t-shirt.it wasn't worth it.
spend the 40-45 bucks,two hours worth of time and be done with it for years and years.
oh.though it may be overkill.those crimp connectors are heat shrink style.go ahead and shrink them with heat once crimped but first,slide on some universal heat shrink tubing too so you can shrink them again.then wrap them all with e-tape like a half the roll.then wire loom,and wire tie.you want no hassles.overkill here is ok.
hmm.know what,i think this might be the most detailed thread about insuring this bulkhead connector is 100% flawless,that im going to save it and reference others to it,as it's such a common issue.save me some future typing.
so then,i might add for better search results the common codes a bad plug can cause:
possible related codes due to a bad s-pack or connector (either side)
26
Transmission Oil Temperature (TOT) sensor out of range
39
Transmission Torque Converter clutch not engaging (guessing on this one.seems likely though if a connection can't be made.)
62
E4OD excessive converter clutch slippage
66
Transmission Oil Temperature (TOT) signal low (possibly grounded)
91
Transmission SS 1 circuit/solenoid problem
92
Transmission SS 2 circuit/solenoid problem
93
Transmission TCC circuit/solenoid problem
94
Transmission TCC circuit/solenoid problem
98
Transmission EPC circuit/solenoid failure
99
Transmission EPC circuit/solenoid failure
so basically as you can see,any of the type of codes that would be related to a faulty connection between trans control unit/TCM and the solenoids.makes sense right?
oh,that statement reminds me of a pic.then let me help you get the idea of what this is with this pic:
(s-pack = short for solenoid pack.pretty obvious but it's a made up abbreviation by me to save typing,so i shouldn't assume all will know what im talking about lol.)
this is not a universal e40d help thread.it is limited only to the type of issues listed.there are many reasons for a flashing OD light/codes.here we are talking only about solenoid pack related issues.
if your unsure if your E40D shares these particular type of issues.please start a new thread.do not ask for help here.
you can however go ahead and follow the instructions posted before starting a new thread if your unsure.insuring you've got a clean trans harness,will never be a waste of your time,even if it doesn't resolve your issue at hand.
flashing OD light? getting any of these codes:
26
39
62 this ones popular.it doesn't automatically mean you have a mechanical failure/bad torque converter.in fact,it very rarely means that.
it just means the TCM sensed the converter unlocked due a break in the line between the TCM and the solenoid,it's solenoid has failed in the pack,or you really do have a mechanically failing torque converter.don't ever jump to conclusions and assume the worst.you do that,and you could end up with code 62 still even with a brand new top of the line,high end converter.
62
66
91
92
93
94
98
99
Failed shift solenoid pack plug.
This is an example of what you don't want to see! This is the main harness that the ECM uses to communicate with the transmission. If yours looks like this one,google search:
E4OD solenoid wire harness repair kit 1989-94
(that will be for all idi trucks with the E40D.)
if you have or suspect the plug is dirty,or damaged clip,etc,then it's best to buy it as soon as you can.otherwise the solenoid/tot/converter slip codes will just keep coming back.
once you replace that side,flush the s-pack pins out really good with electrical cleaner.
Ford E4OD Transmission Solenoid Wire Harness Repair Kit 1989 94 99608 | eBay
Let me google that for you
once all dried out good (must be 100%) closely inspect the pins using your mirror.scrape them up and make each brightly shine again if need be.can even drop the pan and just pull it and take your time with the pins if needed.
if you want this issue resolved for the rest of the trucks life with no more hassles,this hour or two job will do the trick.you can't make sure this connection is flawless enough.when you think it's perfect,double your efforts again x2 lol.
she'll run like brand new with perfect connection here.
this is the main line of communication between the trans controller and your transmission.these pins can't be over clean.take your time and make them shine.
upon reasonably,just before plugging it in,apply a nice dose of Permatex 22058 dielectric tune-up grease.
Permatex 22058 Dielectric Tune-Up Grease, 3 oz. Tube
remember now.......anything short of perfect will = failure.flashing od light.limp mode.hassles.removal of plug all the time,spraying of plug.etc.etc.etc......been there done that,got the t-shirt.it wasn't worth it.
spend the 40-45 bucks,two hours worth of time and be done with it for years and years.
oh.though it may be overkill.those crimp connectors are heat shrink style.go ahead and shrink them with heat once crimped but first,slide on some universal heat shrink tubing too so you can shrink them again.then wrap them all with e-tape like a half the roll.then wire loom,and wire tie.you want no hassles.overkill here is ok.
hmm.know what,i think this might be the most detailed thread about insuring this bulkhead connector is 100% flawless,that im going to save it and reference others to it,as it's such a common issue.save me some future typing.
so then,i might add for better search results the common codes a bad plug can cause:
possible related codes due to a bad s-pack or connector (either side)
26
Transmission Oil Temperature (TOT) sensor out of range
39
Transmission Torque Converter clutch not engaging (guessing on this one.seems likely though if a connection can't be made.)
62
E4OD excessive converter clutch slippage
66
Transmission Oil Temperature (TOT) signal low (possibly grounded)
91
Transmission SS 1 circuit/solenoid problem
92
Transmission SS 2 circuit/solenoid problem
93
Transmission TCC circuit/solenoid problem
94
Transmission TCC circuit/solenoid problem
98
Transmission EPC circuit/solenoid failure
99
Transmission EPC circuit/solenoid failure
so basically as you can see,any of the type of codes that would be related to a faulty connection between trans control unit/TCM and the solenoids.makes sense right?
oh,that statement reminds me of a pic.then let me help you get the idea of what this is with this pic:
(s-pack = short for solenoid pack.pretty obvious but it's a made up abbreviation by me to save typing,so i shouldn't assume all will know what im talking about lol.)
Last edited:
