over heating issues

[Third Gear]

Do you hear the fan going when it gets hot? It should sound kind of wheezy when the fan is fully engaged._x000D_
_x000D_
Did you try to bleed all the air out of the system? Does the heater put out hot air? The system builds pressure?_x000D_
_x000D_
With the cap off of the surge

Topic

[EricTheCarGuy]

You make a good point Moparfan.

[hartung345]

You are correct, the truck did come with dex cool ._x000D_
Early on within 2 years I drained out the dex and replaced the coolant with the good old green stuff,

[moparfan]

[quote]Quoted From hartung345: _x000D_
_x000D_
You are correct, the truck did come with dex cool ._x000D_
Early on within 2 years I drained out the dex and replaced the coolant with the good old green stuff,

[EricTheCarGuy]

The caps not a bad idea but I’m not convinced it’s the cause.

[hartung345]

Well the have inspected the radiator and shot it with a heat gun.

[college man]

To me it seems like the radiator does not have flow._x000D_
thats a big temp difference from engine to radiator._x000D_
T-stat or radiator?

[moparfan]

sounds like a flow issue in the cooling system to me. but then again where are they pointing the temp gun? some spots will be hotter then others. this could also point to a vacuum leak on the drivers side. i think at this point we are all at a guess! over

[hartung345]

Service center verified both cats were in fact not plugged and are baffled is to why they truck runs hot under load._x000D_
the temp gun was aimed at the coolant

[pcmdjason]

Fought for the longest time with an overheating problem with my wifes car. Thermostat, flusing, reflushing, flushing, radiator didn’t seem blocked, looked like it had good flow. Finally saw a hair line crack in the filler neck that was seeping. So I chang

[moparfan]

[quote]Quoted From hartung345: _x000D_
_x000D_
Service center verified both cats were in fact not plugged and are baffled is to why they truck runs hot under load._x000D_
the temp gun was aimed at the coolant

[college man]

The scaly stuff is probably mineral deposits from hard water._x000D_

[hartung345]

Sounds like the shop is starting to wake up and smell the coffee.

[college man]

keep us posted

[hartung345]

The material that is in the radiator looks like a white gritty substance.

[moparfan]

[quote]Quoted From hartung345: _x000D_
_x000D_
The material that is in the radiator looks like a white gritty substance.

[Author]

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