Underhood temps 5.3

[warriorpluto]

This thing gets a lot hotter than the 4.2. How do I get the underhood temps down? It's like I'm running headers or something. Never had a vehicle that got this hot under the hood. I have a 99 trans am with stainless steel headers and it's not that hot under the hood like my envoy.

 

[BlazingTrails]

There are only a few ways to get the temps down.

Cowl/Vented hood
heat wrap
getting rid of unnecessary items that absorb heat.
Lower temp thermostat with tune.

 

[Mounce]

I don't think it's anything to worry about unless your coolant Temps are way up. It's just how it works.

 

[C-ya]

Yep, mine runs hotter than I think it should by the way it feels, but it is stock except for Jeremy's tune. Runs good, gives decent mileage for what it is... Eh, it is what it is.

 

[Mooseman]

Maybe the aluminum block is like a giant heat sink and dissipates heat more.

 

[AWD V8]

Is it intake temps that you think are too high, or just an overall feeling that it's too hot when you open the hood.

As long as the coolant temp is normal and the intake temp is reasonable your OK.

 

[warriorpluto]

Is it intake temps that you think are too high, or just an overall feeling that it's too hot when you open the hood.

As long as the coolant temp is normal and the intake temp is reasonable your OK.

Just a feeling that it's too hot when opening the hood. Even the hood prop is too hot to touch. Never experienced that on my other vehicles. I'm mainly worrying about the life of the electronics since they are exposed to so much heat. I was about to purchase an engine cover, but I'm having second thoughts now.

 

[Mooseman]

I have the cover and leave it off at most times. Just worried about air circulation and the alternator.

 

[warriorpluto]

I have the cover and leave it off at most times. Just worried about air circulation and the alternator.

Guess it's better off then.