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Registered User
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Speedometer and Odometer stop working
Hi...
Couple weeks ago, my '89 Carrera 3.2's speedometer and odometer stop working on my way home all of a sudden. Later I browsed some previous posts on Pelican forum so I replace the speed pick-up sensor first. Unfortunately my problem did not solve, so I borrowed a working gauge from a friend of my, and put it on my car to give a test. The result is the same...lights are working but speedometer/odometer are not. So I took my meter to measure the sensor output from the tunnel, and I did not have any output from those brown/green lines. Kindly asking any suggestion what should I check next... Thank you all. |
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11-03-2013, 10:42 PM
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Registered
Join Date: Apr 2005
Location: outta here
Posts: 53,169
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It sounds like you have a loss of continuity in the wiring. Start at one end and physically examine the wires to the other end.
JR |
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11-04-2013, 04:08 AM
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The Bavarian
Join Date: Mar 2012
Location: Pfaffenhofen/Bavaria/Germany
Posts: 247
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If both instruments stopped at the same time you will have to look for a common source of failure such as missing +12V or ground. The two instruments use totally different sensors, so that cannot be it.
Just a thought, Manfred
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'80 911 SC Targa black/black |
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11-04-2013, 04:17 AM
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Thanks for replying guys!!! Problem found!!! It turns out my fuel pump's outlet is leaking, and gasoline somehow affect the speedometer's ground just slight right above the fuel pump. After I put on a new fuel pump, both speedometer and odometer run again.
No wonder I smell gas fume from time to time while driving. What an odd problem solving experience!!! |
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11-05-2013, 12:17 AM
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Graydee
