93 IDI won't shift into OD? - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #1 of 2 Old 02-17-2011, 04:25 AM Thread Starter
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93 IDI won't shift into OD?

trans is less than a year old. Usually I drive about a mile in the cold and it will shift into OD. I don't beat on the truck I just drive it, don't tow anything either.
It took nearly 10 miles before I hit OD. Witch was when I came into a 45 zone
Any ideas?

1993 f-350 7.3IDI
1967 F-100 352
1958 Pan Head Ground up built NOT BOUGHT
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post #2 of 2 Old 03-07-2011, 05:54 AM
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it might not be an overdrive problem,it might be the lock-up torque converter, when cold mine(e4od) will stay unlocked for almost 5mi, once warmed up it shifts just fine, to check it use the manual OD button to disengage and engage when you are traveling faster than 36mph as this is where OD will kick in.

Last edited by 63mercury; 03-07-2011 at 05:57 AM.
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