Vegas Teacher Posted May 28 Report Share Posted May 28 Hello, Vegas Teacher is out for his summer break! What should my engine temp be as I am running down the highway after the truck warms up? Later, Cory Ossana. Quote Link to comment Share on other sites More sharing options...
Darryl&Rita Posted May 28 Report Share Posted May 28 Normal thermostat range is 180-200. Most common is probably 185 or 190. Dash gauge should run close to that. Quote Link to comment Share on other sites More sharing options...
Vegas Teacher Posted May 29 Author Report Share Posted May 29 5 hours ago, Darryl&Rita said: Normal thermostat range is 180-200. Most common is probably 185 or 190. Dash gauge should run close to that. Copy that, thanks. Quote Link to comment Share on other sites More sharing options...
podwerkz Posted May 29 Report Share Posted May 29 (edited) Yep, typically 180-190...more or less. Can run up to around 210-220 on a long hard pull uphill, especially in the summer. Also, it's normal to see the temp rise a bit with a TAILWIND. There is almost no 'ram air effect' when you have a good tailwind, so the coolant temp will rise and you might even hear the engine fan cycle on and run for a little while, then cycle off, intermittently. Normal cooling system behavior, nothing to worry about. If you ever get red warning lights (high engine temp) and possibly a warning beeper, then its time to slow down and pull over. Edited May 29 by podwerkz Quote Link to comment Share on other sites More sharing options...
travelinbob Posted May 29 Report Share Posted May 29 I was always under the understanding 100 degrees plus the outside ambient air temp. Quote Link to comment Share on other sites More sharing options...
Dutch_12078 Posted May 29 Report Share Posted May 29 24 minutes ago, travelinbob said: I was always under the understanding 100 degrees plus the outside ambient air temp. The cooling system thermostat doesn't know or care what the outside ambient temp is. It's a closed loop system. Quote Link to comment Share on other sites More sharing options...
Moresmoke Posted May 29 Report Share Posted May 29 Volvo engines typically run hot, so around 220 is not uncommon. It will let you know if there is an issue. Quote Link to comment Share on other sites More sharing options...
Deezl Smoke Posted May 29 Report Share Posted May 29 2 hours ago, travelinbob said: I was always under the understanding 100 degrees plus the outside ambient air temp. This is a valid rule of thumb for systems such as hydraulics etc. Especially mobile hydraulic systems where you may have a small cooler or even one with a fan, but you can not thermostatically control the flow of the fluid for cooling. Always a good rule of thumb to have in your knowledge base.👍 Quote Link to comment Share on other sites More sharing options...
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