Od light flashing
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1st Gear
Joined: Dec 2025
Posts: 1
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Od light flashing
I have a 2003 7.3 and its missing 3rd gear occasionally and it results in a overdrive light flashing. I just put a tranmission in it and ive already changed the solenoid it has a ats tourq converter and it throws a 3/4 solenoid code the truck has a 88/68 turbo unknown injectors but bigger then stock and a airdog fuel system. it had a ats tranmission before I swapped it could it be a valve body issue?
Laughing Gas
Joined: Oct 2018
Posts: 1,009
Likes: 86
From: San Diego
for starters:
google overdrive light flashing
and then ther is this;
https://www.ford-trucks.com/forums/5...-to-flash.html
google overdrive light flashing
and then ther is this;
https://www.ford-trucks.com/forums/5...-to-flash.html
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
I have a 2003 7.3 and its missing 3rd gear occasionally and it results in a overdrive light flashing. I just put a tranmission in it and ive already changed the solenoid it has a ats tourq converter and it throws a 3/4 solenoid code the truck has a 88/68 turbo unknown injectors but bigger then stock and a airdog fuel system. it had a ats tranmission before I swapped it could it be a valve body issue?
There are two things that can set a solenoid code, a bad solenoid, or a damaged wire to the solenoid. I'm betting on the wire.
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