95 town car speedo issue
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=98887
Printed Date: October 31, 2025 at 8:05 AM
Topic: 95 town car speedo issue
Posted By: offroadzj
Subject: 95 town car speedo issue
Date Posted: November 11, 2007 at 6:11 PM
We did a r/s, radio w/ amp rewire, and 4 speakers in a 95 lincoln continental the other day and now the customer states that the speedo is reading 20-25 mph over the true speed. Is there anything that the r/s or anything would do to cause this issue? When I installed the r/s every wire I tested was the correct wire on the first try, i used voltage sensing, not tach, and everything else was pretty much straight forward. He is coming in this week for me to look at it... is there anything in particular I should look for? Will resetting the battery help to recalibrate it?
Thanks
Kenny
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Kenny
Owner / Technician
KKD Garage LLC
Albany, NY 12205
Replies:
Posted By: KarTuneMan
Date Posted: November 11, 2007 at 6:53 PM
First things first......drive the car!
Posted By: offroadzj
Date Posted: November 11, 2007 at 7:00 PM
well duh... lol. I was jsut tryin to get a heads up on what to look out for. I cannot think of a single wire that would cause the speedo to miscalibrate... its not like i had to tag speed sense or anything... Everything was tested with a DMM and like I said, the very first wire I tested was the correct wire for everything.
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Kenny
Owner / Technician
KKD Garage LLC
Albany, NY 12205
Posted By: enice
Date Posted: November 11, 2007 at 7:20 PM
Questions and observation, Is the vehicle equipped with the proper gear ratio and tire size, as either of these can affect the speedometer operation.(in other words, has the vehicle been serviced by others????) Check the vss as it may be that or the actual cluster itself.
Posted By: offroadzj
Date Posted: November 11, 2007 at 7:39 PM
i never had to tag the vss, so i dont see how the install would have caused the issue. I didnt really pay attention, but the tires seemed to be normal size, and I have no idea about the gear ratio.
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Kenny
Owner / Technician
KKD Garage LLC
Albany, NY 12205
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