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georog's avatar
georog
Explorer
Jul 24, 2014

Workhorse w22 engine coolant temperature gauge

The engine coolant temperature gauge on my 2004 Fleetwood Southwind 37C (w22 chassis w/30k miles) first intermittently, then permanently went from reading normal to an almost complete ccw rotation to ...
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Tom_N's avatar
Tom_N
Explorer
Jul 25, 2014
georog wrote:
@ Tom N: Cluster Diagnostics works for other gauges but temperature gauge does not move for 0, 50, 100% tests.


My 2005 Suncruiser's Actia dash tests the temperature gauge.

If you diagnostics test does not move your temp gauge, you have no activity on J1850 data bus.

Download the 2004 Workhorse chassis wiring schematic.

http://www.scribd.com/doc/71716348/Chassis-Wiring-Diagram-W22-L18

>>>-----> Page 17. The wire to the engine coolant temp sensor is gray/yellow.

-Tom

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