vetmom
Well-known member
My motorhome has started running hot when it really shouldn't be. Started first on long hills which I wasn't too concerned about but it has gradually gotten worse that now it doesn't need to be much of a hill and harder to get it to cool down. Had the radiator flushed about 2 years ago, maybe helped a little, but worse this trip so took it too Rocky Mountain truck repair, they did a lot (?) of diagnostics but didn't really find anything so they wanted to flush the radiator. Let them go ahead a do that, they felt it would help since they got a lot of gunk out of it but as soon as I left, only a 30 minute drive to Loveland and it was running hot. Now the strange thing is it is not dependent on the outside temperature but it is on if it is raining. Left Loveland early morning, nice and cool and didn't make it to Cheyenne before it was running hot, at Cheyenne it started raining- engine temperature stayed at 180 degrees all the way to the Tetons! Same thing leaving Gardiner, WY for Kalispell MT- rained the whole way and maintained 180 degrees with out a budge. Today went from West Glacier to East Glacier Park on Rt2- cool morning but nice and sunny and had to stop to let it cool down. Slowing down and down shifting does not help. Also if I stop and idle the temperature continues to climb, have to shut it down to get it to cool down. Thanks for any thoughts!