2000 Ford Explorer overdrive lite in dash is blinking

Tiny
FFK1960
  • MEMBER
  • 2000 FORD EXPLORER
Transmission problem
2000 Ford Explorer 6 cyl Four Wheel Drive Automatic 170.00 miles

overdrive lite in dash is blinking
when it does this overdrive is still working I can shut it off and RPM will jump about 500 higher, I think it is the torque converter lock up but if I turn the key off then restart lite goes off sometimes for days then somedays it will come right back after short drive, if I dont reset and just drive it then it shifts harder when you take off from a corner, I have changed the filter and fluid. Not sure here if its a sencer or what now
please HELP!
Fred
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Friday, December 5th, 2008 AT 3:35 PM

11 Replies

Tiny
BMRFIXIT
  • EXPERT
Need to have it scanned for codes
that is tranny codes

this is TSB on the subject

ISSUE
Some vehicles may exhibit a flashing Transmission Control Indicator Lamp (TCIL) accompanied by a Diagnostic Trouble Code (DTC) P0741 and in some cases P1728. This may be caused by the Output Shaft Speed Sensor (OSS) signal being improperly processed by the Powertrain Control Module (PCM).
ACTION
Retrieve DTCs. Verify DTC P0741 and in some cases P1728. Diagnose and reprogram the PCM if necessary. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
1. Verify transmission fluid levels (and transfer case level if equipped).
2. Verify that DTC P0741 and in some cases P1728 are present. If other DTCs are present, repair them first. 3. Follow the Output State Control (OSC) procedures for both bench and drive modes as listed in the appropriate model year Workshop Manual (Section 307-1A) to verify transmission and solenoid operation. While in OSC drive mode, monitor OSS Sensor - OSS PID for proper signal as stated in the Workshop Manual. This will verify OSS operation. If the solenoids or transmission fail to perform properly, follow normal diagnosis and repair procedures.
4. Reprogram the PCM following the procedures found in the Powertrain Control/Emissions Diagnosis (PC/ED) Workshop Manual.
5. Verify the repair following the Transmission Drive Cycle test as written in the appropriate

NOTE: THE TRANSMISSION DRIVE CYCLE TEST MUST BE PERFORMED EXACTLY AS WRITTEN. DO NOT SHORT CUT OR MISS ANY STEPS OR THE PROCEDURE WILL NOT BE ABLE TO VALIDATE THE REPAIR.
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Friday, December 5th, 2008 AT 6:08 PM
Tiny
FFK1960
  • MEMBER
I had the codes checked but they told me there was no codes but the light was not on at the time
Fred
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Saturday, December 6th, 2008 AT 11:40 AM
Tiny
BMRFIXIT
  • EXPERT
Codes should be stored in the TCM and PCM memory
check for history codes
you may need a scanner and Not an OBDII reader
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Saturday, December 6th, 2008 AT 2:50 PM
Tiny
FFK1960
  • MEMBER
I am going to take it to have the trans codes done again see what happens this time I will let you no
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Sunday, December 7th, 2008 AT 9:33 PM
Tiny
BMRFIXIT
  • EXPERT
Let me know what you come up with
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Sunday, December 7th, 2008 AT 9:56 PM
Tiny
FFK1960
  • MEMBER
I had it tested today it came up with p0741 code
torque converter solenoid stuck in off position. Now in your email you said that this code could mean the output shaft speed sencor could be bad that is if I am understanding you right so now I am not sure witch one to replace?
Torque converter solenoid? Or speed sencor?
Thanks Fred
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Friday, December 12th, 2008 AT 2:33 PM
Tiny
BMRFIXIT
  • EXPERT
Replace 1st Output Shaft Speed Sensor
left rear of tranny
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Friday, December 12th, 2008 AT 5:44 PM
Tiny
FFK1960
  • MEMBER
Thanks is that a dealer item? Will get one let you heys no how it works thanks for the help
Fred
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Friday, December 12th, 2008 AT 6:04 PM
Tiny
FFK1960
  • MEMBER
Went to the dealer today got the sensor came home got under the truck and they sold me the wrong one this one looks something like the older ones with the cable drive on the inside part and 2 wire plug on the outside think this one they sold me is 4 a 2 wheel drive maybe? Not sure going to take it back. Now the one I need is the one on the left rear side on the very top of the trans? Pretty sure it is just checking thanks guys will let you no how it works
Fred
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Monday, December 15th, 2008 AT 3:54 PM
Tiny
FFK1960
  • MEMBER
[well changed the speed sensor today its still doing same thing ]so now what?
Fred
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Tuesday, December 16th, 2008 AT 4:00 PM
Tiny
BMRFIXIT
  • EXPERT
Is it still coming up with code
consider reprogramming the PCM
talk to your local dealer
have your VIN # on hand
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Tuesday, December 16th, 2008 AT 8:41 PM

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