no overdrive on 94 explorer - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old October 4th, 2006, 01:03 PM   #1
xlinkinpark2438x
03 Rubicon
 
xlinkinpark2438x's Avatar
 
Join Date: 07-04-06
Location: Taylor
Posts: 355
iTrader: (1)
Mentioned: 0 Post(s)
Default no overdrive on 94 explorer

i have a 94 explorer with 4.0 and automatic trans
the trans only has 30k miles on it

the trans wont shift into overdrive and i was woundering if this has happend to anyone else

someone told me that they had the same problem and it was a bad sensor



Does anyone know what or where that sensor is?????


any help please


thanks
xlinkinpark2438x is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old October 4th, 2006, 01:27 PM   #2
Bones
skillicous
 
Bones's Avatar
 
Join Date: 11-06-05
Location: Dearborn Heights, MI
Posts: 11,499
iTrader: (37)
Mentioned: 3 Post(s)
Send a message via AIM to Bones
Default

try www.explorer4x4.com
__________________
Inviscid Motorsports

Special Thanks and Recommendations to;
Motorcity Machines
Ironman Offroad
Branik Motorsports
Maxxis Tires

Raceline Wheels
PAC Racing Springs
Joint Clutch and Gear
Bones is offline   Reply With Quote
Old October 5th, 2006, 05:30 PM   #3
chris1044
Senior Member
 
chris1044's Avatar
 
Join Date: 11-05-05
Location: Lost in the mitten!
Posts: 2,013
iTrader: (4)
Mentioned: 1 Post(s)
Default

well, you've the notorious A4LD.....that trans blows balls, bad...it's very very week and notorious for blowing the pump seals and sucking in general.....one thing that helps these tranny's last is driving in drive unless you actually need OD - this uses a band to hold the overdrive drum instead of a multiple disc clutch which is much stronger...but back to your issue

First, are you sure you don't have OD or is it that you dont have TCC lock up?

TCC lock up is controlled by the following:
# Application of brakes (Brake switch located on the pedal assy)
# Closed throttle (TPS)
# Cold engine (ECT)
# Very heavy/wide open throttle (TPS and MAF)
# Low engine speed to minimize lugging boom
# 23.5 inches of mercury absolute barometric pressure or below in the intake manifold. (calculated from MAF)

Most of these will inhibit OD shifting as well, and other things such as a vacuum leak (if it's large eneough)

If you dont have OD, your no OD shift could be caused either by an electrical problem or mechanical problem (inside tranny)....I can't remember exactly what's needed to allow the OD shift (electronically) without looking at a diagram. Also, the kickdown cable could possibly be stuck inhibiting OD operation as well.....

If it were me, first I'd check the input to the OD solenoid while driving it - you can do this with a DVOM back probing the correct wire on the trans and routing it into the vehcile. If it's getting 12v at the correct time, all the inputs are good and the issue is something inside the trans (solenoid/seal/clutches worn out). If not, it's an elec issue such as a break in the wire down to the trans (unlikely), a bad input to the PCM, etc.....

Basically, I know it sucks, but you need a manual and some good diag skills....

Last edited by chris1044; October 5th, 2006 at 05:34 PM.
chris1044 is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 02:47 AM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.09895 seconds with 29 queries