While driving the overdrive light turns on and flashes

check the oil level. it may be low. I would run the codes as well, here is a guide to help us get started.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down this guide and report back.

what oil level? the transmission fluid or the engine oil?

the transmission. it's most likely an internal transmission switch problem.any transmission shop can verify this but you will need to pay a check out fee.

Recently my overdrive light has been blinking on and off only when I come to sudden stop. I noticed after if starts doing this my truck seems to have trouble accelerating very fast when I come from being completely stopped to about the first gear. It then kicks into gear and is fine until i come to another stop again. I usually quickly turn off the truck and back on again while I'm waiting for the red light and it fixes the problem for the most part for about 30 minutes then it starts blinking again. Any idea what the problem could be, and how do I go about fixing this problem?

Start by having the PCM scanned for codes. The light blinking is its way of telling you something isnt right.Get back to us with the info

while driving my ranger it suddenly downshifted speedo quit working abs light came on and overdrive light began flashing on and off.i pulled over and turned the truck off, i then disconnected the negative cable at the battery for a minute then reconnected it. started truck abs light stayed on put truck in gear had to really get on the gas to get it to shift into second, it shifted really hard into second then the overdrive light started blinking on and off again, speedometer still not working.

Most probably you have a fault with the wheel speed sensor which is causing all the problems. Get a scan done to check which wheel sensor or circuit is faulty.

my overdrive light keeps flashing and it seems that I can't accelerate

flashing OD light indicates fault with the tranny. need to have a diagnostic ran on the tranny ,could be faulty sensor or something more internal of the tranny.

I was driving the other day while it was raining and my wipers quite working. I turned around to head home and my transmission started shifting rough, then the overdrive light started flashing. Before I made it to the driveway then the service engine light came on. I had a vehicle that did similar problem and it was the alternator. It was not the problem but I changed it anyway since the local autoparts store stated the diods were burned out. 2 weeks prior replaced battery.

If the check engine light came on, have the PCM scanned for codes, it may give us a clue as to what happened.It should have recorded a code if it came on and the truck was still running.. Have you looked for water in the underhood power center just to see if something got wet by chance? So now the alt is working?

Sorry to take so long to respond. Tried to get mechanic to come to my residents to do a code ck. They only wanted to tow me in then give ck, so I bought a machine myself. The code read PO500 Generic speed sensor A malfuction transmission. Please tell me the location in the transmission (style 'T') and from what year to what year is tranny is compatible. My original email stated that transmission (automatic) was shifting rough, speed odometer quit working, overdrive light was flashing, windshield wipers quit wkg//Thanking you in advance for your help

That code points to a malfunction in theVSS (vehicle Speed Sensor)This will make the speedo not work and the trans shift erratic or abnormal. I would start by removing it and check the gear in the trans. If ok, you may just need a new VSS (Located in tailshaft of trans)

I changed out the VSS, which according to others on this particuler 2000 model ford ranger is not located the the trans. but in the rear end. I changed the sensor and I still have the same prob., I disconnected the battery and had my PBDII reset the trouble code. Any clues?

reply: Trouble code was po500-which I think indicated the speed sensor on the rear axle which I replaced and still have the same prob., illregular trans. shift, overdrive light blinking, speed odo. not working. It is s 3.0L engine with a model "T" tranny

Transmission problem
2000 Ford Ranger 6 cyl Two Wheel Drive Automatic 100k miles
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why would a tranny overdrive light blink & try to kick in and out? is this a sol. problem?

You need to get the computer scanned first and get a code. Some codes can be produced be electrical faults, but others can be mechanical/internal failure. Try to get a code and post back. We can better give you an answer from there.

Transmission stuck in overdrive,OD light does not work

IS OD the only gear you have, or does it shift through and always shift into OD? In other words, you can't shut the OD off?

It shifts OK but is in OD,OD OFF light not on,no tach on instrument panel

Okay, now I understand. Chances are the OD switch on the shifter is bad or the wiring in the shifter has broken. You will need to check it for continunity to see if first the wiring is good, and then if the switch breaks the current.

This transmission shifts fine when first starting. After warm-up, it stays in first gear too long and jerks hard when shifting into second. After driving around town for most of the PM, the overdrive light came on and it seemed to stay in second gear. Since then, it has been working fine on short drives, but still jerks when shifting into second afer warm-up. Any ideas?

The valve body gaskets have a reputatin of blowing out. There use to be an updated gasket with the separator plate. Then It use to be only available with the valve body. Then there use to be a service kit that came with a new plate and gaskets as well as a valve kit to put in the valve body. I'm not sure how it is available now, but I'll bet that's your problem.

Over drive light comes on and off sometimes, want come out of overdrive?
Thanks Loy;

Have you had the computer scanned to identify where the problem is coming from? Most parts stores will do it for free.

Let me know.

Theoverdrive solenoid is either getting a weak signal or no signal resulting in a faulty circut. try and look at your fuses

My O/D light comes on...after the truck warms up. It blinks continuously until the truck is parked and turned off. I have a button to push to turn off overdrive but it does nothing when the light starts blinking.
The truck's shifter is off and you have to move it to park to put in in reverse.

I have the same thing going on with my Ranger did you fix yours ? And if so How may I ask


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Having transmission rebuilt to solve problem. I was afraid to drive it with this going on. I took it to a mechanic and he suggested that I go ahead and get the transmission rebuilt....we will see how it goes.