My truck has a 302 engine. Full tow package. Trailer that is being towed weighs (weight from a scale, not guessed at) 3,100 and 3,400 pounds based on load.
Truck overheats only while towing on an incline, no matter how slight. Runs slightly warm while towing on flat ground ground but quickly cools to normal (or below) when running downhill.
Thermostat is new and just had a full coolant flush and fill in which seemed to give a slight (albeit short term) improvement. I have read possible radiator and possible water pump. Where should I start?
have the same problem?
Thursday, June 29th, 2017 AT 9:45 PM