Clutch, Transmission, Differential, Axle & Transfer CaseSPONSORED BY:
Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.
You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!
The OD light is flashing on my 95 explorer.
It has 171k miles on it and the tranny was rebuilt 20k miles ago (off warranty).
I got DTC 648 - incorrect gear ratio for 4th gear.
I reset the computer and the tranny shifts fine, but when its supposed to switch to the 4th gear the flashing starts.
If I reset the computer and run with the overdrive off, I don't get any flahing plus the tranny shifts smooth. Dont get the 4th gear, though (not supposed to, i guess)
I wonder if the problem could be a bad solenoid of some minor issue. Because the tranny has been rebuilt not long ago, I dont thing it would be all screwed up again. When it was rebuilt I asked the mechanic to keep the old solenoids, since the didn't read any errors and I was short on money.
I also got the following codes:
DTC 116 - Coolant temp. sender out of self-test range
DTC 167 - Insufficient Throttle Position Sensor (TPS) change during Dynamic Response Check
DTC 326 - EGR voltage lower than expected
DTC 332 - EGR valve opening not detected
DTC 335 - EGR voltage out of range
I've read in a previous forum that the TPS might be causing it (thanks to CNTHOR), so I will replace it and post the results.
Meanwhile any similar experience and possible causes / solutions is highly appreciated.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.