overdrive light flashes - Ranger-Forums - The Ultimate Ford Ranger Resource
Ford Ranger Forum - Forums for Ford Ranger enthusiast!

Go Back   Ranger-Forums - The Ultimate Ford Ranger Resource Arrow Ranger-Forums Technical Forum Arrow General Technical & Electrical

General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

LinkBack Thread Tools Search this Thread
Old 08-12-2016
Thread Starter

I am: kevin
Join Date: Aug 2016
Location: Williamson, Georgia
Vehicle: 1999 Ranger
Drive Type: 4x2
Engine: 4.0
Posts: 1
Total Props: 0
overdrive light flashes

I have a 99 ford ranger xlt 4.0. The od light flashes and won't go into od. And shifts real hard. Only does it every so often I can turn the truck off and back on and it works fine. Can anyone help me with this problem?
Reply With Quote
+ 0 -
Old 08-12-2016
iTrader: (1)
I am: Ron Dean
Join Date: Jan 2014
Location: Vancouver, BC
Vehicle: 1994 Ford Ranger
Drive Type: 4x4
Engine: 4.0
Posts: 4,726
Total Props: 88
Welcome to the forum.

Your '99 4.0l will have a 5R55E automatic, a 5-speed trans.

Just a quick background, 5R means 5 speed, 4R 4-speed
44E were used on Ranger 4cyl and 3.0l V6s
55E were only used with 4.0l engine, it is a heavier duty trans.
E stands for full Electric shifting.

The previous 4R55E was of course a 4-speed with full electronic shifting.
Ford added a shift to OverDrive(OD) while still in 1st gear to add a new 2nd gear, and renamed the transmission a 5R55E.
So you have shifting like this, 1st, 1st+OD, 3rd, 4th, OD = 5-speed tranny from a 4-speed tranny, very clever these Americans, lol.

Does hard shifting involve "2nd" gear, which needs OD?

Flashing OD light usually means an electrical problem, and computer may put transmission into "limp" mode, as in "limp home", which will cause hard shifting.
And the electrical problem doesn't have to be in the transmission at all, could be an engine sensor is out of its range so computer switches system over to "limp" mode.

An Auto Parts store will Read the Codes for free, WRITE THEM DOWN, exact code numbers are very helpful, "I think code number was............" is worse than no code at all, lol.
And code numbers that are not used are also important.

So the OD light flashing means computer has detected a problem in the engine or transmission.
Doesn't mean more or less than that.
You fix it by checking out what the computer has to say, the codes.

Turning key off and on , restarts/reboots the computer so OD light won't flash until the problem is detected again, this usually means some sensor is going out of range or a control(solenoid or valve) is not responding as it should over a period of time, then the flashing OD light returns.

Google: 5r55e od light flashing

Many posts about this symptom and many different solutions depending on the actual problem, which is what you need to find out first
Explorer used the same trans as Ranger 4.0l, and same system/control

Last edited by RonD; 08-12-2016 at 01:21 PM.
Reply With Quote
+ 0 -

Similar Threads
Thread Thread Starter Forum Replies Last Post
Battery/charging light flashes....... 03R44Edge 4.0L OHV & SOHC V6 Tech 1 12-26-2012 01:39 PM
Battery/charging light flashes....... 03R44Edge General Technical & Electrical 0 12-24-2012 11:27 PM
4X4 light flashes lsf53 General Technical & Electrical 9 08-27-2010 11:44 AM
Check Engine Light Flashes Fuel/spark Question hardrock30096 2.9L & 3.0L V6 Tech 2 03-28-2008 06:59 PM
Battery Light Flashes at WOT WholesaleMN.com General Ford Ranger Discussion 15 01-14-2007 12:56 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -6. The time now is 12:36 PM.