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Dodge Ram Odometer problems!


Old 10-22-2005, 08:09 AM
fmsmith is offline
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Default Dodge Ram Odometer problems!

A weird thing happened yesterday. I have a '99 Dodge Ram 1500 and the mileage is 41,372.
1. After a couple of days of none use I cranked up my truck and pulled out of the driveway an headed down the street when I noticed two lights burning on my odometer panel. A red light stated "brake" and the other an amber light which read "ABS." I checked the emergency brakes (which I never use) and saw they weren't set. I drove several more blocks down the street to see if the light would go out but no luck, although the brakes worked fine. I went back home and checked the master cylinder. It was full. I tried setting and releasing the emergency brake several times to see if something might have stuck in a particular position, but no luck. The light was still burning. If an odometer light comes on it bothers me because it's burning for a reason. One thing I thought about were the brake shoes and pads. I know they need replacing now, but I wasn't sure if there was an emergency light to tell me so. What's your opinion on this?
2. Why is the amber "ABS" light burning? What does this signify?
3. While all of the above is happening the odometer doesn't work, although the "RPM" side does. While I was driving checking the brakes I also noticed the odometer needle wouldn't move until I reached about 30mph, and then the needle was bounced to 30mph. As I increased speed to about 40mph it would hesitate a little and the needle would bounce to 45mph. When I decreased speed the needle would slowly drop until it reached 30mph then the needle would drop to 0mph all of a sudden.
The truck runs fine and the electrical seems fine. The other gauges on the odometer panel (oil, fuel, water, etc.) seem to be working okay. These two lights continue to stay on (either in the "ON" or "CRANKING" position until the engine is turned off.)
This reminds me of the TV commercial where a doctor is talking to a car and asking if it's had symptoms of coughing, sputtering, etc.
Okay Doc! What's wrong with my sick truck?

Francis in Mobile, AL

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Old 10-22-2005, 03:30 PM
ramfan5.9's Avatar
ramfan5.9 is offline
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Default RE: Dodge Ram Odometer problems!

ABS means anti-lock brake system, not sure whats up tho
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Old 10-23-2005, 04:02 AM
Ramtuff is offline
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Default RE: Dodge Ram Odometer problems!

Sounds like the rear speed sensor to me.
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Old 10-23-2005, 05:57 AM
steve05ram360 is offline
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Default RE: Dodge Ram Odometer problems!

Ramtuff is right, it is the rear speed sensor mounted in the differential. takes about 10~15 minutes to change and costs about $40 bux (if I remember correctly, swapped mine about 6 months ago)
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Old 10-23-2005, 06:11 AM
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Racinfan83 is offline
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Default RE: Dodge Ram Odometer problems!

Rear speed sensor - probably. A buddy just had that same scenario. The speed sensor is one of those parts you have to get from the dealer. He said it was somewhere around $40. Easy to fix.
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