overheating ..need help
jesseneil41465
Member Posts: 7
Ok so i have a 2006 dodge grand caravan with a 3.3 v6 engine.
it overheats at about 30 mph ... throw in neutral rev engine cools down to normal and doesnt overheat anymore until engine has sat shut off for a while.
I have changed head gaskets, had heads checked for warp or crack, all checked ok , changed water pump thermostat radiator, electric fans ... flushed cooling system twice, changed intake manifold gasket changed radiator caps.
No idea what the cause could be.. hoping someone here can maybe help me find the solution.
it overheats at about 30 mph ... throw in neutral rev engine cools down to normal and doesnt overheat anymore until engine has sat shut off for a while.
I have changed head gaskets, had heads checked for warp or crack, all checked ok , changed water pump thermostat radiator, electric fans ... flushed cooling system twice, changed intake manifold gasket changed radiator caps.
No idea what the cause could be.. hoping someone here can maybe help me find the solution.
0
Comments
How many miles on this engine?
Testing for combustion gases would tell you if there is an internal crack somewhere in the engine block or head. Essentially, in that case, you're driving a tea kettle.
I think the only rational way to approach this is to make very very careful notes of exactly under what conditions the vehicle overheats--this includes things like time from startup, speed, outside temperature, gear ratio, road conditions or gradient.
Another factor is that you cannot assume that because you did something, that you can eliminate what you did as the cause.