94 f150 E4OD shifting problem
Thread Starter
|
Freshman User
Joined: Jul 2012
Posts: 35
Likes: 0
94 f150 E4OD shifting problem
Alright guys i need more help. I got my truck to start out in first gear, but now its shifting way to fast. When i kick it into passing gear it seems to go all the way back down to first. Anybody know whats up with it?
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
You can have a faulty TPS without triggering a code. Meter the TPS signal output to verify it is good. The PCM relies on the TPS signal for many functions including transmission shift schedules.
Freshman User
Joined: Jun 2011
Posts: 46
Likes: 2
From: Weatherford, TX
This was my experience. My '94 exhibited exactly those symptoms and replacing the Throttle Position Sensor fixed it immediately.
Trending Topics
Thread Starter
|
Freshman User
Joined: Jul 2012
Posts: 35
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Freshman User
Joined: Jun 2011
Posts: 46
Likes: 2
From: Weatherford, TX
Yep, just like mine was.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
Did you measure the signal output of the TPS before changing it?
Please define your statement in Post#5 "it isnt showing any codes". At the very least you should have gotten the All Clear/System Pass code of 111/111 for KOEO and 111/111 for CM.
Please define your statement in Post#5 "it isnt showing any codes". At the very least you should have gotten the All Clear/System Pass code of 111/111 for KOEO and 111/111 for CM.
Fleet Owner
Joined: Aug 2005
Posts: 23,668
Likes: 301
From: Easton,Ks
What gears you have is second and 4th. Why I think that is because that is the way a E4OD works when it is in limp mode. The rough shift is because the the transmission is at full oil pressure in limp mode.
You have either bad wiring to the transmission, wrong pin positions in the plugs or the plugs are not making contact. In other words the computer has lost contact with the transmission. When the computer has lost contact with the transmission it puts the transmission in limp mode. If the transmission does not get any information from the computer (all wiring cut) it puts itself in limp mode. That is just the way it works.
If it is not what I said above then you either have the wrong computer in the truck or a bad computer.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
Why do you think it's going all the way back to 1st gear?
Still sounds like you have a wiring or computer issue. Try resetting your computer by disconnecting the battery. Try manually shifting through all the gears. Cancel OD, then put it into 1st, take off than shift through 2nd, into D, then enable OD again. Verify that it shifts correctly into each gear.
Still sounds like you have a wiring or computer issue. Try resetting your computer by disconnecting the battery. Try manually shifting through all the gears. Cancel OD, then put it into 1st, take off than shift through 2nd, into D, then enable OD again. Verify that it shifts correctly into each gear.