How long have you owned this vehicle?
I bought this new Montana in 2003.
Have you had it in hot weather before to know this is not normal behavior of the vehicle?
Yes. Since last year.
When you are running the engine and it gets hot and the RPM's come up, what does the temperature gauge say the temperature is? Where is the needle?
The needle at one memory above middle. It is about 100+80+4= 184.
I checked coolant radiator and all pipes were hot, but reservoir tank is not hot, and the pipe line connected to the tank was warm but not hot after run 20 miles on the highway. When l run on the highway 70 mph the RPM was 2,000 RPM, but after run 20 mile when exit to local free way at 40 mph, the RPM was 1,500, and kept the speed until stopped at home. If run on the highway at this state, to reach 70 MPH the necessary RPM increased to 2,500.
But water temperature gauge memory kept at middle without change no matter the engine got hot or not.
Many thanks to you!
Wednesday, June 3rd, 2020 AT 11:24 PM