Sierra overheating issue that's driving me nuts!

[mikedeezxxx]

Only use Dexcool in there. Using other coolant will screw up your cooling system. You need to get all the air out of the system also. You can loosen up the coolant crossover tube at the top of the engine and bleed all air out of system easily. That’s the highest point where air gets trapped. Very important you do that. Good luck. Hope it helps.


Sent from my iPhone using Tapatalk

[Supreme Pizza]

I use Walmart brand universal coolant in everything. It can mix with any type of coolant without causing any problems. It can be used in any vehicle. It is very inexpensive. 

 

I'm sure there will be opposition to this, just like arguing over oil brands - but to each their own. 

 

The universal coolant has worked great for me. 

 

 

 

[Z45]

https://consumerist.com/2013/02/06/this-antifreeze-is-defective-it-froze-solid/