PAThwacker
Jul 21, 2014Explorer
HOT 300 degree 4l80E
Mid season update on our Subs 4l80E. I have taking the truck to a shop at the beginning of the season for hot towing concerns and given a clean bill of health. I have figured out why and which RPMs to be at to effectively control the TQ. This past weekend we camped in the Catskills, NY and had no spikes climbing north. The ride home was A-0k at 190 to 220F.
enter NY thruway south with sluggish traffic 45 to 52mph, tow haul on, and i watched the gauge spike to 300 and then the hot trans light came on. I stopped the truck for 40 minutes and continued home for 2 more hours at 190F.
i called a new shop and they feel the factory cooler is blocked. I can not believe that the 4th gear sluggish event is enough to roast the fluid. Is it something else?
We are barely towing a full height trailer 7ft 6"w by 9ft 6" tall w/ac.
Will adding an auxilliary cooler, and cap off factory cooler be merely a bandaid or final fix to the old school 4l80E?
enter NY thruway south with sluggish traffic 45 to 52mph, tow haul on, and i watched the gauge spike to 300 and then the hot trans light came on. I stopped the truck for 40 minutes and continued home for 2 more hours at 190F.
i called a new shop and they feel the factory cooler is blocked. I can not believe that the 4th gear sluggish event is enough to roast the fluid. Is it something else?
We are barely towing a full height trailer 7ft 6"w by 9ft 6" tall w/ac.
Will adding an auxilliary cooler, and cap off factory cooler be merely a bandaid or final fix to the old school 4l80E?