Question about 2000 Cadillac Catera

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The speedometer of my Cadillac Allante 1992 started going crazy between normal speed reading and suddenly jumping to a higher reading and back. Digital speedometer even says 5mpg sometimes when car is simply idling in park. What is causing the problem? Thanks

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Electronic Brake Control Module needs to be replaced

Posted on Sep 15, 2009

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The speed sensor in the trans could be the culprit I would have the wiring inspected first though

Posted on Jul 17, 2009

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SOURCE: My speedometer on our 1993 Cadillac Allante only

The Speed sensor found near the transmission was replaced. The part is not expensive, however the labor time & effort needed getting to and from the sensors location is the most difficult part of this solution. The digital speedometer seems to be working just fine now.

Posted on Aug 28, 2009

Testimonial: "This is "spot on". As long as the digital readout unit in the dash cluster is working, the speed sensor is the next logical item to check!"

  • 1 Answer

SOURCE: 1992 CADILLAC ALLANTE ...THE SPEEDOMETER CLUSTER

I removed the Digiital Cluster and found out the there is a High Voltage design that powers a bulb appox 4" x .6" that provides the back illumination, I'm attempting to find out what type bulb it is and to see if can be subsituted for and LED design. I'm in the LED business, and trying to get the Lumms and the current figured out.
www.sales@Yahrzeitronix.com

Posted on Mar 14, 2011

alicantecoli
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SOURCE: why does my speedometer on my 1992 cadillac

are the teeth worn on the gear in the gearbox ,sounds like it to me ,pull them out and have a good look

Posted on Mar 28, 2011

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I removed the Digiital Cluster and found out the there is a High Voltage design that powers a bulb appox 4" x .6" that provides the back illumination, I'm attempting to find out what type bulb it is and to see if can be subsituted for and LED design. I'm in the LED business, and trying to get the Lumms and the current figured out.
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So check for a problem in that area

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