i have a 94 F350 with the 5 speed and natural idi engine. i have been noticing when towing relatively light weight the truck slows on any hill. I am talking about towing a toro dingo weighing around 2500 and a attachment weighing around 800. this on a trailer that weighs 3000. this puts the total weight around 6500. is this enough to really slow the idi? the air filter and fuel filter are both new and shouldn't be the problem. i tow this with a 350 gas engine sometimes and get much better performance. it gets the load there but slowly. would like to hear comments as to whether this is normal.or maybe a sign the engine is wearing down, it does have 265,000 miles. when light the truck runs great.
thanks in advance,
thanks in advance,