Climbing steep grades...
I have a 30’ 2003 Four Winds class C with the 6L, 8cyl Vortec engine. I’m planning on pulling a 2003 Jeep TJ (4cyl, straight drive) and had a question or two. I’ve noticed that when I’m climbing st...
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Running a bit warmer when working hard is completely normal. Just like going for a jog vs walking.
Ultimately if it does approach "over temperature" you need to slow down and continue to downshift to keep the rpm up. If you have a tachometer the RPM should be 1000 to 2000 rpm above the peak torque when running hard up a hill. RPM of peak HP would be about max.
Of course this would be a good time to have the 17 year old cooling system checked and cleaned. Check for debris stuck to the front of the stack that may restrict airflow. Check or just replace the fan clutch (I recommend OEM only). Check or replace the thermostat... seen plenty stuck half open and work fine day to day easy driving.
Ultimately if it does approach "over temperature" you need to slow down and continue to downshift to keep the rpm up. If you have a tachometer the RPM should be 1000 to 2000 rpm above the peak torque when running hard up a hill. RPM of peak HP would be about max.
Of course this would be a good time to have the 17 year old cooling system checked and cleaned. Check for debris stuck to the front of the stack that may restrict airflow. Check or just replace the fan clutch (I recommend OEM only). Check or replace the thermostat... seen plenty stuck half open and work fine day to day easy driving.
