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Old 03-03-2015, 01:54 PM   #1
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Country Coach Owners Club
Join Date: Aug 2014
Location: SoCal
Posts: 90
High water temp gauge: Bad dash ground

My consistently high reading water temp gauge (on my 2000 Country Coach Magna) was due to the dashboard gauges not being properly grounded. I ran a new ground wire from a point on the front frame area (situated nearby the HVAC unit on the passenger side, behind the dash access panel directly in front of the passenger seat) to the dash gauges. The dash gauges all have a common ground wire and I simply tied into the that existing green wire from my new wire run. Preseto! My consistently high reading water temp gauge returned to a normal running temp of right around 200 degrees. Similarly my consistently low reading volt gauge (showed around 11 volts) ran higher at just over 12 volts while running down the road.

Tim Sullivan, 2000 Country Coach Magna, C10 Cat with 2015 Toyota Prius toad.
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Old 03-04-2015, 10:36 AM   #2
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Country Coach Owners Club
Join Date: Jan 2006
Location: Sacramento Area
Posts: 3,227
Congrats on successful repair.

Thanks for posting the info.

1995 CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
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Old 03-04-2015, 10:41 AM   #3
Join Date: Jan 2015
Location: Baconfield, CA
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I think I will check that out on my beast, never would have thought. Thanks for the info.
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Old 03-04-2015, 10:39 PM   #4
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Location: Over the next hill, around the next curve...
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Thanks for updating us on the root cause, and corrective action to resolve!
Roo II is our 04 Country Coach Allure 40'
OnDRoad for The JRNY! Enjoy life...
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dash, water

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