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Home » Public Forums » GMCnet » [GMCnet] What do those in the hot SW do for engine thermstats?
[GMCnet] What do those in the hot SW do for engine thermstats? [message #320009] Wed, 05 July 2017 12:26 Go to previous message
BobDunahugh is currently offline  BobDunahugh   United States
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
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My new Digi Panel in our latest 78 Royale is showing higher temps then I was running in our former 78 Royale. Now on this trip. The temps have come up a little more. I think this latest increase is a thermostat issue. The 403 now has about 6000 miles on it. The thermostat is a 195. I'm thinking of dropping that temp. We don't leave when it's real cold. Our GMC sets in it's garage that's at 70 degrees all year long. If we leave on a cooler day. The engine isn't needing to come up from -35 below. So does 180 seem right for my situation? I'm also thinking that during the rebuild that the PO had done. The builder put a car water pump in. Think the water pump is coming up. Bob Dunahugh
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