1999 Ranger Speedometer issues
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1999 Ranger Speedometer issues
After driving for about 30 to 45 minutes the speedometer drones down to 0 out areas 10 as that is the bottom I’d the speedometer. Restarting the truck seems to always fix the issue for the next 30 minutes or so.
i tried replacing the speed sensor on the rear differential. It didn’t solve anything. I plugged in my OBD reader and found that it continues to give an accurate reading even after the speedometer drops to the 10mph mark.
Any thoughts on how to fix it.
i tried replacing the speed sensor on the rear differential. It didn’t solve anything. I plugged in my OBD reader and found that it continues to give an accurate reading even after the speedometer drops to the 10mph mark.
Any thoughts on how to fix it.
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Joined: Jan 2004
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From: SW Va
Welcome to FTE.
When you say after 30-45 min it "drones down to zero", are you saying the speed-o becomes noisy ???
EDIT: I forgot to ask if there are any trouble code clues, if so, post All code Numbers as they can help focus a trouble shoot.
Did the problem come about slowly over time, or suddenly after some event ???
When you say after 30-45 min it "drones down to zero", are you saying the speed-o becomes noisy ???
EDIT: I forgot to ask if there are any trouble code clues, if so, post All code Numbers as they can help focus a trouble shoot.
Did the problem come about slowly over time, or suddenly after some event ???
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It does become noisy for a short bit and then just doesn’t register. I bought a used speedometer off of eBay and so far it hasn’t had any problems. Although it now looks like my truck has about 10000 more miles on it.
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Joined: Jan 2004
Posts: 13,851
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From: SW Va
Ok, good feedback & to hear the used instrument assy has put things right.
Seeing as how the old speed-o isn't broken, just noisy & erratic, open it up to get at the old speed-o needle bearing & try giving it a tiny bit of a instrument, or clock oil, with a needle oiler, or if you don't have any of that, try a tiny drop of fresh high quality low viscosity, non residual synthetic tranny lube. The latter applied with a home made pen oiler (syringe & needle), worked for me more than 10 years on a 85 Alliance intermittent acting out, noisy, erratic indication, speed-o needle.
You can likely salvage the old speed-o assy as a spare, or swap it back in so the mileage is correct & use the recently acquired one as a spare.
Don't toss the old speed sensor, as its ok you have a spare one of those too!!!
More thoughts for consideration.
Seeing as how the old speed-o isn't broken, just noisy & erratic, open it up to get at the old speed-o needle bearing & try giving it a tiny bit of a instrument, or clock oil, with a needle oiler, or if you don't have any of that, try a tiny drop of fresh high quality low viscosity, non residual synthetic tranny lube. The latter applied with a home made pen oiler (syringe & needle), worked for me more than 10 years on a 85 Alliance intermittent acting out, noisy, erratic indication, speed-o needle.
You can likely salvage the old speed-o assy as a spare, or swap it back in so the mileage is correct & use the recently acquired one as a spare.
Don't toss the old speed sensor, as its ok you have a spare one of those too!!!
More thoughts for consideration.
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