I took my truck into my local dealer for an overheating problem. It runs very hot when towing a large load 10K lbs. but ok when not towing. Tech did an injector balance test and found 3 bad injectors. 2 were +6 and one -7. Truck runs ok except for a fuel knock. Dealer is going to replace all 8 injectors. Do you think this could possibly be the source of my hot running problem?
Thanks is advance.

no