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So, spring is around the corner and this will be our third year camping...we tow a 4550 lb 27 foot travel trailer 4 kids 2 adults 6 bikes and a BBQ and lots of other stuff, probably about 5000 lbs+ in the trailer end..and i'm looking to fix/cure an issue we have every summer..Our 2000 durango 4.7 with factory tow package will heat up like crazy!!! straight roads are not to bad, but when it's really warm out (mid 80's +) and she's under load (grade/hill) it will near pin the heat gauge? I had the rad out changed the coolant and replaced the fan clutch with a CAR QUEST unit..still no change??? maybe the fan clutch can't pull enough air at 3500-4000 rpm???the dodge manuel say that the clutch fan does run at a lower speed at higher engine speeds???maybe i need to add an additional electric fan out front??? otherwise the durango runs fine!! always just under the half mark on the coolant gauge..it has about 100000 miles and i run with or without the superchips programer...she has the factory 3.92 gears and 31 inch tires and its an AWD...thanks
Trevor
Trevor