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Registered
Join Date: May 2004
Location: Palm Springs area, CA
Posts: 347
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speedo odo stopped, now what?
There was a recent post on this topic but it went unresolved. Now I am in the same boat. After having the car up on jacks to work on the cooling system, the speedo and odo stopped working before the next test drive. Weird coincidence?!
I have read many posts on this but none that are definitive in this situation. I believe that there is no cable involved as this is a late model (91 S2) I have replaced the sensor in the transmission I have cleaned the ground next to the sensor Can anyone answer the following? How do I test the wire, at the sensor, backwards (I have very limited electrical experience and hope this is a good place to learn some basics)? Could it be the speedometer/odometer gauge itself? If so, can this be tested and confirmed instead of buying and replacing? Could this be two problems in one? I read some posts saying it could be the infamous gear AND a speedo problem. However, since I have replaced the sensor I am hoping this is ruled out. Thanks for any help as always,
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peter 1991 944S2 Cab, Crystal Silver Metallic "Platinum Banshee" 1987 944S Alpine White, Ice Shark Lights "Desert Ghost" 2015 Charger R/T Road & Track |
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10-27-2008, 03:50 PM
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1984 porsche 944 na
Join Date: Aug 2008
Location: Westfield NJ
Posts: 306
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any other guages out? check relays
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10-27-2008, 05:02 PM
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Join Date: May 2004
Location: Palm Springs area, CA
Posts: 347
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No other guages out. Don't suppose there is a relay for just these two?! I will do some switching anyway just to rule it out.
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peter 1991 944S2 Cab, Crystal Silver Metallic "Platinum Banshee" 1987 944S Alpine White, Ice Shark Lights "Desert Ghost" 2015 Charger R/T Road & Track |
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10-28-2008, 11:32 PM
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Registered
Join Date: May 2004
Location: Palm Springs area, CA
Posts: 347
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It looks like I will be taking out the gauge after all. As I do this, does anyone know how I test the wiring while the gauge is out? I mean, I am sure there is a way to test resistance from the gauge back to the sensor in the transmission but which wire and how?! I have GOT to learn this electricity stuff some day!
Thanks!
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peter 1991 944S2 Cab, Crystal Silver Metallic "Platinum Banshee" 1987 944S Alpine White, Ice Shark Lights "Desert Ghost" 2015 Charger R/T Road & Track |
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11-06-2008, 11:50 AM
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Join Date: Jan 2007
Location: Juneau, AK
Posts: 54
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One thing you can do that will potentially rule out some causes is attach the new speed sender to a drill, then have someone up front check to see if the speedometer moves. If it does, then you are missing a little gear in the tranny. If it doesn't, you have gauge/wire problems.
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1986 944 NA |
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11-06-2008, 01:31 PM
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Join Date: May 2004
Location: Palm Springs area, CA
Posts: 347
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What a great idea! I will do this when I am checking my CV bolts!
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peter 1991 944S2 Cab, Crystal Silver Metallic "Platinum Banshee" 1987 944S Alpine White, Ice Shark Lights "Desert Ghost" 2015 Charger R/T Road & Track |
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11-08-2008, 10:54 AM
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