E4OD not shifting after engine overhaul
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 219
Likes: 0
From: Southern IL
E4OD not shifting after engine overhaul
I just took my new old truck out for its maidin voyage after i overhauled the engine and the it ran like a top as far as the engine goes, but it wouldnt shift out of first gear unless you manually did it on the tree. However once it hits OD it stalls out and the motor revs up. Now the first few stop signs i came to and built up speed at it shifted like a dream even in OD but it started happening about 5 miles down the road later.
I did replace the tranny lines going to the cooler and also removed and later put back the cooler on the grill. Could it just have air in lines and throw up codes from that thus putting it in limp mode???
I have already pulled the battery terminal off of the relay of the fender of the truck for about min or two and that did not cure it.
Oh also the coolant level is still fine even though i lost some through this process. I would like to be able to drive it to town to my buddys shop so he can read the codes but untill then im stuck. Any Ideas??????
I did replace the tranny lines going to the cooler and also removed and later put back the cooler on the grill. Could it just have air in lines and throw up codes from that thus putting it in limp mode???
I have already pulled the battery terminal off of the relay of the fender of the truck for about min or two and that did not cure it.
Oh also the coolant level is still fine even though i lost some through this process. I would like to be able to drive it to town to my buddys shop so he can read the codes but untill then im stuck. Any Ideas??????
Posting Guru
Joined: Sep 2011
Posts: 1,409
Likes: 0
From: Clitherall, MN.
I had the same thing happen to mine but it was from some butthole who took the fuse out for me.Guess he thot I was fishin' in his secret spot or somethin' and would get back at me for it.
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 219
Likes: 0
From: Southern IL
i just check fuses and all test ok. I never had the wire harnes unplugged from tranny but checked it and noticed all wires going into weatherpack had all the insulation cracked with wire exposed. I took every wire out of the plug and pulled all the hard insulation off and put liquid electrical tape on it, when it dries ill put it back together and see what happens
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 219
Likes: 0
From: Southern IL
Ok all the wires fixed and put back together and no change.
Where do i go from here?
Fyi, speedo isnt working, brakes are a little soft kinda like vacuum pump isnt working right, other than that everything seems to be working fine.
Where do i go from here?
Fyi, speedo isnt working, brakes are a little soft kinda like vacuum pump isnt working right, other than that everything seems to be working fine.
Elder User
Joined: Jun 2010
Posts: 568
Likes: 0
From: Northern IL
Not to sounds stupid but, did you make sure the speedo cable is reconnected to the transmission? Either that or there's one the differential.
Trending Topics
The Southernmost Mod
Joined: Dec 2004
Posts: 6,902
Likes: 20
From: Caracas, Venezuela
The E4OD won't shift if it doesn't get the signal from the VSS sensor in the rear Differential.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Fleet Owner
Joined: Jul 2006
Posts: 20,359
Likes: 815
From: Mi'kma'ki
we must be talking about the '90 idi truck in your sig.
how is an Electronically controlled 4 speed OverDrive transmission, supposed to know which gear to select, if it's blind to the vehicles speed?
trick question of course,as it can't.as stated above.
how is an Electronically controlled 4 speed OverDrive transmission, supposed to know which gear to select, if it's blind to the vehicles speed?
trick question of course,as it can't.as stated above.
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 219
Likes: 0
From: Southern IL
Wait a minute why does a transmission need to know my speed to know when to shift? I thought it used pressure to know when to shift. I mean i would hope it wouldnt shift at the same speed if i have 15k behind me.
I may sound like a total idiot but it just doesnt sound right. Not to dobt any of you of course thats why im asking for all of your help!!!
I may sound like a total idiot but it just doesnt sound right. Not to dobt any of you of course thats why im asking for all of your help!!!
Fleet Owner
Joined: Jul 2006
Posts: 20,359
Likes: 815
From: Mi'kma'ki
it's controlled via shift solenoids/electrically. if the PCM doesn't receive the signal from the VSS then it can't know which gear to select.you certainly wouldn't want it to guess either,as it could then send your trans into 1st going 90 mph and blow herself apart.
it has a TPS for sensing the engines load,to adjust it's shift points and converter lockup state.
this is on the 7.3l's IP and should be inspected and or replaced every 50k miles (however it's not the issue at hand.)
it has a TPS for sensing the engines load,to adjust it's shift points and converter lockup state.
this is on the 7.3l's IP and should be inspected and or replaced every 50k miles (however it's not the issue at hand.)
Posting Guru
Joined: Jan 2002
Posts: 1,346
Likes: 8
From: Baltimore
On a 90, the speedometer is mechanically driven from a cable.
For a 2wd truck the cable is on the back of the transmission tail shaft housing.
For a 4wd truck the cable comes from the transfer case.
The computer needs an electrical signal to sense the vehicle speed.
As the mechanical speedometer cable spins when the vehicle moves,
a sine wave signal is generated called the VSS signal. This electrical
signal is fed to the computer for transmission control and is also used
for cruise control if you have that.
Here's what the speedometer cable driven gear looks like.
The red arrow points to the out put of the Vehicle Speed Sensor
which should be two wires.
Since you say the speedometer isn't working, the teeth on the drive
or driven gear for the speedometer cable maybe bad or the cable
has snapped.
For a 2wd truck the cable is on the back of the transmission tail shaft housing.
For a 4wd truck the cable comes from the transfer case.
The computer needs an electrical signal to sense the vehicle speed.
As the mechanical speedometer cable spins when the vehicle moves,
a sine wave signal is generated called the VSS signal. This electrical
signal is fed to the computer for transmission control and is also used
for cruise control if you have that.
Here's what the speedometer cable driven gear looks like.
The red arrow points to the out put of the Vehicle Speed Sensor
which should be two wires.
Since you say the speedometer isn't working, the teeth on the drive
or driven gear for the speedometer cable maybe bad or the cable
has snapped.
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 219
Likes: 0
From: Southern IL
Yee Haw, im up and running again. I ended up replacing both the vss and the abs sensor. When i moved the trans i busted the vss by hitting it on the body and the abs sensor has been busted for a long time apparently.
Thanks for all the help. I thought i had a lot more difficult problems from the get go.
Thanks for all the help. I thought i had a lot more difficult problems from the get go.
Posting Guru
Joined: Sep 2008
Posts: 2,379
Likes: 2
Replacement battery cables?
This would be for my 92 F150, 351W.
I am looking to replace my battery cables (both pos and neg) from the battery but I am having trouble finding a replacement.
I bought a negative, 42" battery cable. When I got it home the first thing I noticed was that the shorter lead that comes off the connector on the battery is a smaller diameter wire than the original one. I am not sure if using a replacement with the smaller lead will work.
Also, with the positive cable that is on the truck now I noticed the shorter lead coming off of it is the same gauge wire as the main lead but I can't find a replacement that looks like this.
Any advice on what I should do for replacing these? Just really want to make sure I am using the right sized wires so I get the proper current where it needs to go.
Thanks
I am looking to replace my battery cables (both pos and neg) from the battery but I am having trouble finding a replacement.
I bought a negative, 42" battery cable. When I got it home the first thing I noticed was that the shorter lead that comes off the connector on the battery is a smaller diameter wire than the original one. I am not sure if using a replacement with the smaller lead will work.
Also, with the positive cable that is on the truck now I noticed the shorter lead coming off of it is the same gauge wire as the main lead but I can't find a replacement that looks like this.
Any advice on what I should do for replacing these? Just really want to make sure I am using the right sized wires so I get the proper current where it needs to go.
Thanks
Thread
Thread Starter
Forum
Replies
Last Post
Svtfreak92
Clutch, Transmission, Differential, Axle & Transfer Case
4
Oct 19, 2018 09:35 AM
Forddiesel17
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
7
Jan 4, 2012 08:52 AM
