Anyone losing coolant out of the Coolant Tank?
Since early January and 16,000 miles, I have towed roughly 15,000 miles putting my mileage at 31,000 miles. I rarely drive my truck except for towing.
Around 10,000 miles ago I began to notice the coolant level dropping ever-so-slightly. I immediately pulled my SCT and have not replaced it since then, but my coolant condition has gotten worse.
I took the truck to the dealer last week and they replaced the coolant tank and cap under Warranty, through a TSB. They performed a coolant system pressure test and found the coolant tank was flawed from the factory around the radiator cap. They replaced and performed another test. NO cross-contamination was found and pressure was well within factory specs.
All indications were good that the problem was solved until I towed ANOTHER 500 miles yesturday through 90 degree heat. Once again, I noticed the tell-tale sign of coolant expulsion because the driver's side of my trailer became a giant coolant-slick. I topped it off(down 2 liters on coolant), and it seemed to hold steady for the rest of the trip.
Truck does NOT overheat;
Truck runs GREAT;
Truck ejects coolant only when towing an 8,000 lb load(about the only time I drive my truck).
Has this happened to you? What was done to rectify the situation?