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check engine light increased ect adn trans temp

1K views 7 replies 3 participants last post by  02vortec 
#1 ·
the truck is a 2002 6.0l with 110k miles
i was just informed that the check engine light came on and engine temp rose while pulling a 16ft stock trailer empty up a hill in WV but once the truck got to the top the temp went down the problem started 3 hours into the trip and the trip is 6 hours long
i believe it is the thermostat not sure though :(
 
#6 ·
i said the same thing the guy said it has to do with telling the ecm how much fuel to put into each cylinder
which doesnt make sense i mean i have three years of automotive training and the IAT nor the MAF sensor make ect temp rise

at least the mechanic didnt charge us for the fix
 
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