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Home » Public Forums » GMCnet » Why won't my motor come to operating temp? (New Thermostat didn't fix the problem.)
Why won't my motor come to operating temp? [message #199354] Fri, 22 February 2013 17:39 Go to previous message
kerry pinkerton is currently offline  kerry pinkerton   United States
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma:
Senior Member
OK, I'm officially stumped. My coach runs cold...really cold. I suspected the thermostat and sure enough it was a SuperStant that had failed open. Replaced it with a 180 degree RobertShaw that I ordered from JimK. Figured that would do it. I had let it idle a few times for 15 minutes or so and it got up to 120 or so. I have two gauges and the correct sending unit for the dash gauge.

I have a 4 year old aluminum radiator. The antifreeze looked green and clean when I drained it. No problem there.

Just got back from a 40 minute drive. Its about 60 degrees out. Water temp shows about 120 and my really cheap infrared thermometer agrees. Drained my oil and while it was warm, it wasn't HOT and the thermometer showed it was about 120 also. I did notice during some hard WOT runs the temp would rise a bit but drop right back down. What the heck???? Over.


Kerry Pinkerton - North Alabama Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
 
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