How to bleed air out of radiator

Just go with what you're comfortable with.

If you do end up changing brands or whatever, it's better to flush the system out, but whatever you used before should be fine.

 

Good deal. I appreciate it

 

1st gen Toyota uses red coolant 50/50 (if it is condensed it requires to be diluted 50-50 with distilled water). For 2.7 4x4 coolant flush see the whole process I had in my link posted earlier. Because you can't drain 100% every time than I recommend use distilled water for flushing, as that water will stay in your engine mixed with condensed coolant at the end. At the end some calculation is required how much condensed coolant must be added before topping off with diluted 50-50.

 

Bleeding procedure is dependant on the make and model of engine. Without getting too complicated my personal system is to fill the rad and overfill the overflow tank. With the rad cap off I squeeze and work both the upper and lower rad hoses to burp it as best as I can. The key is to get fluid into the engine or else everything else is a waste of time. You can also crack the bolts on the thermostat housing to ensure fluid gets at least that far but you can also just piss a lot on the ground if you don’t know what you are doing. The whole idea is to get enough fluid into the motor and ensure you don’t have hot spots. At the same time you want the fluid to get hot enough to heat the thermostat so it will open. Once it opens you will usually get a huge burp. My reasoning for the overfilled overflow tank is once the air has burped out (and may continue to do so for a few trips / days) you need to suck fluid back into the coolant system as it cools down. You might think you have burped the system fully but then you do a longer trip and it burps a bit of air again and then you are low.

 

OP has exactly the same model and year as my truck (minus AT) so the process that worked for me will work for his truck. Because of AT the final calculation for amount of condensed coolant to add might be different tho.

 

On my 95', i pulled the block plug which is located on passenger side of block up high just below the valve cover at the front of the motor, hard to see with the manifold in the way, I used a mirror to find it and take it out. Pretty good high point on the block to push air out.

 

Did you mean the block drain plug? I used it to drain block when I was doing head gasket job. Very messy and still leaves more than a quart of old coolant in the block. It's not worth the trouble. You can get 99% flush by draining through the radiator 5-6 times.

 

You have to use the lisle funnel or something like it because the heater core hoses are actually higher than the radiator cap and the system will not be completely filled even if it’s full at the radiator cap. With that said the heater core valve has to be open to allow fluid to go through