Secondary Trans Cooler Question
We have a 2014 Forest River Sunseeker 3170DS Class C RV. We just got set up with a Readybrute system to tow our 2013 Jeep Wrangler Unlimited. We took our first trip with the toad 2 weeks ago from NJ...
Forum Discussion
I agree with this. What sounds like strain may just be the engine and transmission doing what they should do - lower gear to allow higher revs, higher revs to allow more coolant flow and air flow, etc. The fan clutch can sound like a small jet under your dashboard. The objective measures are coolant temperature and transmission fluid temperature.
the bear II wrote:
A lot of RV'ers mistake the fan clutch doing it's job as the engine straining. As the engine heats up due to a climb or for other reasons the radiator fan clutch will engage. This causes the fan to spin which in turns makes a loud noise that many equate to a jet like noise. This helps cool down the radiator and transmission fluid.
The goal when going uphill is to not strain the engine and transmission. As the motorhome slows due to the grade and weight you need to down shift to lower gears to keep the RPMs up by using the throttle to stay at a speed that doesn't over rev the engine. You don't want the engine to lug so you need to keep down shifting until you find the correct gear and speed combination for climbing the grade.
Most Class C's already have a large auxillary trans cooler added.
You can't expect to fly up hills. Depending on the drivetrain setup and engine, 45MPH would be an acceptable speed down to 25MPH depending the weight of your motorhome and jeep on a 6% grade.
