Question about 1999 Ford Expedition

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The "off" light for the overdrive shut off flashes.

The "Off" light (overdrive switch) on my gear shift lever flashes on and off. The overdrive still goes in and out via the switch but why does the light flash?

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The light is flashing to alert you to the fact that a fault has been detected in the transmission, the most common is excessive slippage detected by the torque speed sensor as compared to the outshaft shaft speed sensor, U will need to have the system tested for the stored trouble code that is set when this OD light blinks.

Posted on Jul 20, 2009

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Overdrive light flashing, won't shift from first to second unless let off gas pedal


Transmission Control Switch (TCS)
The transmission control switch (TCS) is a momentary contact switch that allows the driver to cancel operation of 5th (overdrive) gear.
The TCS is located on the end of the selector lever.
When the driver initially presses the TCS a signal is sent to the powertrain control module (PCM).
The PCM uses the shift solenoids to disengage/disable 5th gear operation and activate the coast clutch.
At the same time the PCM illuminates the transmission control indicator lamp (TCIL), to notify the driver that 5th gear is canceled.
When the TCS is pressed again, 5th gear operation is enabled, the coast clutch is released and the TCIL is turned off.
Whenever the ignition is cycled (vehicle shut off then started again) the TCS is turned off and 5th gear will be enabled, even if the TCS had been on when the ignition was shut off.
Transmission Control Indicator Lamp (TCIL)
The transmission control indicator lamp (TCIL) is located in the instrument panel and is labeled O/D OFF. It is illuminated in conjunction with the transmission switch (TCS).
The TCIL will flash if the EPC solenoid circuit is shorted or a fault has been detected in a monitored sensor used for transmission operation.

Powertrain Control Module (PCM)
The operation of the transmission is controlled by the powertrain control module (PCM). Many input sensors provide information to the PCM. The PCM then controls actuators which determine transmission operation.

Mar 18, 2018 | Ford Cars & Trucks

1 Answer

I have a 2011 chevy trans when i stop it will slip and will not move at all have to shut the truck off wait10 sec then put in gear to move when i stop again i have to do it all over again any ideas


Yes, no problem. Your trans is not dropping out of overdrive until you shut it off. Computer just naturally puts it back in at speed. The control for that is a second connector on your brake light switch, if the brake lights aren't working, switch is bad or needs adjusted closer to the brake pedal lever. This switch takes power off the trans and out of overdrive. Fix that before you burn up your trans friend. When the overdrive goes out completely, trans will go into limp home mode and you'll only get up to 3rd gear and won't shift any higher.

Aug 17, 2017 | Cars & Trucks

1 Answer

1993 jeep grand cherokee is stuck in second gear, the overdrive button is not functioning, and getting the data control center says service 4wd switch


wow no engine size stated, the 5.2L run a special trans... so....
hopeless to help you much.
zj jeep with automatic.
it didnt lie, it told you to service it, so take it to a shop and let the work on this old dog..
stuck , now what does that mean.
the shift lever lever stuck, or its cable failing end to end.? or?
or shifts from 1 to 2 and hangs there.
or down shifts from 3 to 2 and and hangs there
DIY ? question is that it? you never said intentions.....
so we open the 93 ZJ book and what do we see.
ax-15 stick box, seems not.
the aw-4 auto , electronically shifted with TSM (scan it yet?)
and the 46RH auto. used on the 5.2L, has no TCM brain.
its a Hydramatic.
here are the OD words off the 46h page

Overdrive Control Switch
The overdrive control switch is located in the instrument
panel. In the On position, automatic shifts
into fourth gear overdrive will occur. In the Off position,
the switch overrides the powertrain control module
preventing a shift to overdrive fourth gear range.
The switch has an indicator light that illuminates
when overdrive is turned off. The switch also resets
when the ignition key is turned to the OFF position
so that the automatic overdrive feature is restored.
The use of fault codes is employed to help diagnose
the electronic components that operate the overdrive
unit and torque converter clutch.

Jul 16, 2016 | 1993 Jeep Grand Cherokee

2 Answers

2004 Ford Sportrac having problems with trans OD flashing on and off and sticking in gear?


When the Torque Converter Clutch (TCC) isn't engaging or locks in engagement the light flashes a warning...The TCC solenoid may stick due to dirty transmission fluid...If the Check Engine Light
(CEL) is not lit have your transmission fluid changed...If it is lit the code is probably pointing at a defective TCC, Computer (PCM) or the clutch itself... you can take the vehicle to an auto parts store and have them read and define the trouble code for free...saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Feb 19, 2015 | 2004 Ford Explorer Sport Trac

1 Answer

Chevrolet Caprice Transmission Will not shift to overdrive


Check the help link mentioned below:----

Overdrive light in the dash blinks?

http://repairhelpcenter.blogspot.com/2012/01/overdrive-light-in-dash-blinks.html

--------

OD light flashing and transmission fluid leaking?

http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html

----------

Also i suggest you to refer these gear shift issues, which are mostly noticed. These are direct links with appropriate solutions to the specific problems of gear ****.




GEAR SHIFT ISSUES


Gear indicator Shows "3" Instead Of "D"?

http://whoisbyme.blogspot.in/2012/07/gear-indicator-shows-3-instead-of-d.html

---------

2006 Chrysler 300c: Shifter Stuck in Park?

http://technoanswers.blogspot.in/2012/06/2006-chrysler-300c-shifter-stuck-in.html

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1998 Ford Expedition: Will not Shift Out of Park?

http://schematicsdiagram.blogspot.in/2012/06/1998-ford-expedition-will-not-shift-out.html

---------

Car will not move when in gear?

http://repairhelpcenter.blogspot.in/2012/02/car-will-not-move-when-in-gear.html

-----------

Mercedes-Benz transmission sticks in first gear?

http://technoanswers.blogspot.com/2012/01/mercedes-benz-transmission-sticks-in.html

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Mercedes Benz not engaging in first gear?

http://technoanswers.blogspot.com/2012/01/mercedes-benz-not-engaging-in-first.html

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Chrysler PT Cruiser only goes in First gear?

http://howtobyme.blogspot.com/2011/11/chrysler-pt-cruiser-only-goes-in-first.html


----------

Car is stuck in park and the shift will not move?

http://howtobyme.blogspot.com/2011/08/car-is-stuck-in-park-and-shift-will-not.html

-------

2007 Ford Expedition: How to shift car in neutral with Dead Battery

http://www.howtorepairguide.com/2012/11/2007-ford-expedition-how-to-shift-car.html

--------

2002 Nissan sentra will not go out of park mode?

http://technoanswers.blogspot.in/2012/02/2002-nissan-sentra-will-not-go-out-of.html

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Nissan Sentra stuck in park?

http://technoanswers.blogspot.in/2012/02/nissan-sentra-stuck-in-park.html

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Car will not come out of Park?

http://howtobyme.blogspot.com/2011/11/car-will-not-come-out-of-park.html

-----------

Automatic transmission will not go into high gear?

http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html

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Car won't downshift sometimes?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-downshift-sometimes.html

--------

Buick Park Avenue: Transmission will Not shift into drive?

http://schematicsdiagram.blogspot.com/2011/12/buick-park-avenuetransmission-will.html

------------

No First gear Starts In Second Gear

http://www.howtobyme.blogspot.com/2012/07/no-first-gear-starts-in-second-gear.html

-------

Ford Taurus won't shift from park?

http://schematicsdiagram.blogspot.com/2011/12/ford-taurus-wont-shift-from-park.html

---------

2006 Ford F150: Will Not Shift out Of Park?

http://technoanswers.blogspot.in/2012/06/2006-ford-f150-will-not-shift-out-of.html

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Car Transmission will not go into Park mode?

http://schematicsdiagram.blogspot.com/2011/12/car-transmission-will-no-go-into-park.html

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1998 Chrysler Voyager: Transmission Problem?

http://howtobyme.blogspot.in/2012/06/1998-chrysler-voyager-transmission.html

------

Shift indicator directly goes to 2nd when key is turned ON?

http://schematicsdiagram.blogspot.com/2011/12/shift-indicator-directly-goes-to-2nd.html

--------

Third gear missing and engine losing power?

http://schematicsdiagram.blogspot.com/2012/01/third-gear-missing-and-engine-losing.html

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Chevrolet silverado has whining sound in gear?

http://technoanswers.blogspot.com/2012/01/chevrolet-silverado-has-whining-sound.html

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2002 Chevrolet Avalanche Z71: Gear shift Issue?

http://whoisbyme.blogspot.in/2012/06/2002-chevrolet-avalanche-z71-gear-shift.html

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Hard to shift gears on Manual transmission?

http://technoanswers.blogspot.com/2012/01/hard-to-shift-gears-on-manual.html

--------

Car hard shift at slow speeds?

http://technoanswers.blogspot.com/2012/01/car-hard-shift-at-slow-speeds.html

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Transmission-Hard To Down Shift

http://technoanswers.blogspot.in/2012/07/transmission-hard-to-down-shift.html

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Automatic transmission shift lever hard to move on cold mornings?

http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html

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2000 Nissan maxima shifts hard?

http://schematicsdiagram.blogspot.in/2012/02/2000-nissan-maxima-shifts-hard.html

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Vehicle noticed sluggish delayed shifts while driving?

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-------

2007 Hyundai Santa Fe: Will not Shift out of Park Mode?

http://schematicsdiagram.blogspot.in/2012/06/2007-hyundai-santa-fe-will-not-shift.html


These details will help.

Thanks.

Nov 28, 2012 | Cars & Trucks

1 Answer

1996 honda accord wont shift into overdrive


For Automatic transmission problem,click the link below:----Overdrive light in the dash blinks? http://repairhelpcenter.blogspot.com/2012/01/overdrive-light-in-dash-blinks.html
--------- Automatic transmission troubleshooting:----

http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html

---------
Automatic transmission shift lever issues?-------

http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html

-----------
AUTOMATIC TRANSMISSION FLUID LEVEL? --

http://schematicsdiagram.blogspot.com/2011/07/how-to-check-automatic-transmission.html

--------------

AUTOMATIC TRANSMISSION FLUID AND FILTER?

http://schematicsdiagram.blogspot.com/2011/07/how-to-change-automatic-transmission.html

-----------
Transmission fault light on car dash?

http://schematicsdiagram.blogspot.com/2011/12/transmission-fault-light-on-car-dash.html

--------
Transmission shifting problem?

http://schematicsdiagram.blogspot.com/2012/01/transmission-shifting-problem-on-toyota.html

--------
Transmission Slips out of 2nd gear?

http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html

-----------
OD light flashing and transmission fluid leaking?

http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html

----------
Why Transmission fluid leaks near radiator?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

----------
Transmission fluid leaking?

http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html

-------------
****** wont go in reverse?

http://technoanswers.blogspot.in/2012/02/dodge-neon-wont-go-in-reverse.html

-------------
Automatic transmission will not go into reverse?

http://technoanswers.blogspot.in/2012/02/dodge-automatic-transmission-will-not.html

----------
Transmission is making buzzing noise?

http://technoanswers.blogspot.in/2012/02/transmission-is-making-buzzing-noise.html

-----------

This will help.

Thanks.

Mar 04, 2012 | 1996 Honda Accord

1 Answer

My 1994 Ford Ranger SuperCab won't shift into the overdrive. All the other gears in the tranny shift smooth and work well. It just won't shift into the overdrive. Every once in a while the check engine...


There is an overdrive bypass switch on the end of the shift lever on some, Push the button on the end of the shifter. It is easy to overlook, as it is on the very end of the shift lever, and can be inadvertently switched off when you shift to park. Hope this solves your problem

Jan 20, 2011 | Ford Ranger Cars & Trucks

1 Answer

My overdrive light is flashing, what does this mean?


In many cars, this light means the car wants to use the overdrive gear but it has been overridden by the driver. If you have an overdrive button, try switching it on and see if the light stops flashing.
Another reason for the light may be that the transmission cannot shift into overdrive due to a fault. To be sure, check your owners manual and let us know if you still have questions.

Sep 14, 2010 | 2004 Kia Sorento

1 Answer

1991 Volvo 240 has problem with automatic transmission not being able to shift to higher gear. Previously, orange overdrive arrow would stick or flash, and overdrive would intermittently engage and...


What is happening is the tranny is going. They can try to replace the selenoid, but really, you need a rebuild. Whomever charged you to remove the light, probably messed things up more. Volvo's typically lose overdrive before losing all the other gears. It is time for a rebuild. Go to a reputable tranny shop who knows volvos.

Jul 31, 2010 | 1991 Volvo 240

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