Blinking Overdrive indicator light

2000 FORD EXPEDITION
198,000 MILES • V8 • 2WD • AUTOMATIC
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GARYSINAL
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the overdrive indicator light is blinking , what does this mean? The transmission is slipping badly, the fluid is red, not burned, but it is very bubbly and high on the dipstick when I try to check the fluid. There's been no recent service on the transmission at all.
Dec 31, 2010 at 8:00 PM
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JACOBANDNICKOLAS
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Have the computer scanned. The blinking light indicates there is a trouble code stored in the computer. Here is a guide to help.

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.
Feb 11, 2011 at 4:11 PM
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2CP-ARCHIVES
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shifts though all the gears before it hits 30 mph then the overdrive light flashs make a noise under dash when switch is turn to 4h or 4l but does not make the noise in 2wd or awd
Jul 15, 2019 at 4:49 PM (Merged)
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ASEMASTER6371
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we need the code for the trans.

the shifting may be a bad tps sensor on the throttle body as the pcm looks at that for shifting times

Roy
Jul 15, 2019 at 4:49 PM (Merged)
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GEEPEE1957
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I replaced my 1997 for expedition (4.6) ( 4wheel drive) transmission with 2001 ford expedition (4.6) ( wheel drive) transissiom but the over drive light starts blinking . Do I need to change the sensors or both sensors are compactible. Why is the overdirve light blinking?
Jul 15, 2019 at 4:49 PM (Merged)
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JACOBANDNICKOLAS
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We always recommend staying with direct fit replacement parts because of things like this. If you didn't change the sensor from the old one to the new, I would try that.

Let me know if it helps.

Joe
Jul 15, 2019 at 4:49 PM (Merged)