1st Gen. Ram - All Topics Discussion for all Dodge Rams prior to 1994. This includes engine, drivetrain and non-drivetrain discussions. Anything prior to 1994 should go in here.

Why would my speedo and OD die at the same time?

Old Mar 26, 2006 | 09:07 PM
  #1  
Joe V's Avatar
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From: Santa Ysabel, CA
Why would my speedo and OD die at the same time?

This is real strange, the speedometer dies goes to zero and the tranny loses overdrive. It happens in the beginning of the day when I drive the truck for the first 15-20 minutes. It scared the heck out of me the first time it happened. The duration is lasting longer from the first time it happened. It's happend the last 4 or 5 times I drove the truck. Is this the beginning of the OD gear going out?
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Old Mar 26, 2006 | 10:03 PM
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keithplacervill's Avatar
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From: placerville
speedo tells computer that it is time to go into overdrive my did the same thing took outspeed senosor where it goes into tranny the shaft is suposs to be square my was round so i wrap electric tape around the shaft works great
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Old Mar 27, 2006 | 05:41 AM
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From: Belvidere, NJ
^^ he's right, those speed sensors don't last forever. I had one where out on me.
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Old Mar 27, 2006 | 10:59 AM
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From: Placerville, Ca.
Originally Posted by keithplacervill
speedo tells computer that it is time to go into overdrive my did the same thing took outspeed senosor where it goes into tranny the shaft is suposs to be square my was round so i wrap electric tape around the shaft works great

I did the same thing for a couple of weeks, then had to replace the pin this last week.

In Sacramento there is a speedo shop call Commercial Speedo off Harbor Blvd.

Rich
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