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Author Topic: Dash Temp Gauges Not Working  (Read 162 times)

Thomas Holliday

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Dash Temp Gauges Not Working
« on: January 15, 2020, 03:33:56 AM »
2004 Beaver Marques Garnet: Engine coolant and transmission temp gauges barely come off the low temp peg during Beaver operation; tech has tested gauges and found them to be in working order. Rush Truck Center installed new sending units and confirmed temperatures shown on Aladdin System to be "dead on". However, Rush Truck guys cannot figure why analog gauges in dash do not show correct temps. Any suggestions?

Bill Sprague

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Re: Dash Temp Gauges Not Working
« Reply #1 on: January 15, 2020, 05:00:38 AM »
Dash gauges don't have to be and aren't accurate.  Monaco didn't spend enough money on them for that.  But, they are consistent.  Put a spot of tape or grease pencil mark where the needle normally is.  Then you can spot it quickly if there is a deviation.   
Bill Sprague
Past Region 1 VP
2019 Tiffin Wayfarer 24TW
Past 3 year owner '15 PleasureWay Pursuit
Past 12 year owner of '04 Monterey w/Cummins ISC 350

Mike Shumack

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Re: Dash Temp Gauges Not Working
« Reply #2 on: January 15, 2020, 05:23:24 PM »
Check the ground for the gauges. The ground is one thing they all have in common. There is a ground terminal on the back of the gauge. Check that the connection is tight. Also check the ground bar/strip under the dash (although I don't know where the dash gauge grounds terminate).

You can try running a new ground (temporary wire) to a good ground near the dash and see if that helps the gauge accuracy.
- Mike

'05 Beaver Patriot Thunder 525, Vicksburg, CAT C13, Allison 4000MH, HydraLift
Orlando, FL