Electric Overdrive
Logistics Pro
Joined: Aug 2007
Posts: 3,974
Likes: 18
From: Millersburg, OH
First off does the "OFF" light light up when you hit the button? Second how do you know it doesn't work? When you are in OD and hit the button it doesn't down shift? Does it shift into OD from 3rd even with the light showing "OFF"?
Postmaster
Joined: Jun 2008
Posts: 2,564
Likes: 11
From: Wayyy NoCal, USA
When I bought my used truck, pressing the switch did nothing. No light, no lock out of O/D.
Solution was a new switch. VERY common part at any decent parts store. Ask for Ford truck O/D switch. If they have a clue, they'll know what it is. Same switch has been used for years (since early 90's).
Solution was a new switch. VERY common part at any decent parts store. Ask for Ford truck O/D switch. If they have a clue, they'll know what it is. Same switch has been used for years (since early 90's).
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Junior User
Joined: Feb 2010
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When I hit the button nothing happens. The light doesn't light up and the transmission doesn't downshift.
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Junior User
Joined: Feb 2010
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When I bought my used truck, pressing the switch did nothing. No light, no lock out of O/D.
Solution was a new switch. VERY common part at any decent parts store. Ask for Ford truck O/D switch. If they have a clue, they'll know what it is. Same switch has been used for years (since early 90's).
Solution was a new switch. VERY common part at any decent parts store. Ask for Ford truck O/D switch. If they have a clue, they'll know what it is. Same switch has been used for years (since early 90's).
I haven't really looked at the shift lever **** yet to see how it all comes apart, but is it reasonably simple to change that light? And, if the light was out would that prevent the transmission from downshifting?
Thanks,
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
There is a removable ring that surrounds the OD button. This ring comes off and you can pull the switch out. I figure also the cause is probably a bad switch. You can test it with a multimeter to see if the switch is functioning.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,739
Likes: 2,669
From: SE Florida
It can be the switch, but it's usually the wiring to the switch.
Take the plastic cover off of the steering column. Inspect the wires where they enter the shifter handle inside the column. The wires break or wear through. You can either replace the shifter handle for about $50 or fix the wires.
Take the plastic cover off of the steering column. Inspect the wires where they enter the shifter handle inside the column. The wires break or wear through. You can either replace the shifter handle for about $50 or fix the wires.
Cargo Master
Joined: Jan 2008
Posts: 2,566
Likes: 18
From: The Great White North!
Here is a link for the wires that Mark is talking about. Good idea to check there first.
https://www.ford-trucks.com/forums/7...uestion-3.html
https://www.ford-trucks.com/forums/7...uestion-3.html
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