2004 Tundra. Overheating juussstttt a touch.

All.

2004 DC. 4.7L. 285k.

I was in traffic today for about an hour and half with the A/C on full blast.
At some point I look down and the truck is running hot. Not quite in the red, but close.


I've only had this truck since 280k.

Where would you start?


Believe timing belt/water pump were done at 250k according to previous owners records.



Also.
I have the main fan, but I do not have a little electric fan in front of the radiator. My wife's 03 DOES has a little fan. Is this something I can/should add?

 

Thermostat stuck closed? Cooling Fan not kicking in? Bad thermostat sensor?

 

So cooling fan, would that e the electric one that i dont have?

 

Stay away from the electric fan thoughts. Your existing fan is sufficient if its working properly. If its not then we replace it with new OEM. We need to figure out your problem first. Adding another electric type fan only compounds the fix.

Its hard to diagnose over the internet, but I gave you what I know as a start.

 

Okay ya. So then when you say cooling fan, do you mean the belt driven one?

thermostat is simple enough.

 

Some other ideas:
Low coolant level
Bad radiator cap
Fan clutch not working

 

Anyway to test fan clutch?

 

Here's a link you may find useful. Good luck with your cooling issue.

 

I would start by getting something like a scangauge to see your actual coolant temp, i know theres a cheaper option that connects to your phone too. Then go from there

 

I would seriously consider cleaning out the fins of the radiator. They can be clogged up with all sorts of debris, which blocks airflow through the radiator. Use a hose and spray the crap out of the radiator from the front. If not, at least use a vacuum to clean it out. Ideally, it would be best to remove it and clean it out, but that is much more involved.

 

Since feather dusting that area is impossible, I stick my hose down around the fan blades and spray from the backside of the rad to clean out the debris. Spraying from the front means going through the A/C Coils first which blocks the spray cleaning mojo.