OD Light

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Jun 22, 2016 | 07:38 AM

mark460

Thread Starter

Mountain Pass

Joined: Feb 2002

Posts: 243

Likes: 1

From: Houston USA

OD Light

On my 96 F250 diesel, I just noticed the OD light is blinking. I don't think it did that before. Isn't it supposed to just stay lit? Thanks

Jun 22, 2016 | 08:04 AM

mrollings53

Laughing Gas

Joined: Oct 2014

Posts: 1,227

Likes: 4

From: Washington

It's supposed to be off until you press the button at the end of the shift lever. Blinking means a fault has occurred.

Jun 22, 2016 | 09:10 AM

eduhat

Cross-Country

Joined: May 2015

Posts: 75

Likes: 2

Mine did the same thing when I needed fluid. It still does it from time to time. Most people say that the tranny goes into limp mode with real hard shifts but I hadn't noticed that behaviour from mine.

Check your tranny fluid to make sure you have some in there and it isn't all burned up. I forgot exactly the steps to check it but I believe the engine need to be warmed up, running in park when you check it.

Jun 22, 2016 | 09:36 AM

Phy

Fleet Mechanic

Joined: Jan 2011

Posts: 1,709

Likes: 4

From: 8600 ft in Colo

Step 1:
Pull the codes...

Jun 22, 2016 | 02:22 PM

Lead Head

Lead Driver

Joined: Jul 2007

Posts: 7,868

Likes: 9

From: Rhode Island

The computer has detected a fault with the transmission. Unfortunately pulling transmission codes on a '96 Diesel isn't very straight forward. You will either have to take it to a dealer, or get a Ford specific scan tool, or invest in something like an ELM327 scantool + ForScan software for a laptop.