Radiator flush and t-stat change

[BigClay]

What's up guys? I am a noob to this forum and I have my first question.

My 99 is runnign cold... at highway speeds with the a/c blasting, my temp is barely 1/4 of the way b/w 100 and 210; so I am assuming it is my thermostat. Anyone concur?

Second, if I have to replace the t-stat, I figure I might as well get the pink coolant out of the radiator, flush it, and replace it with the good 'ole green kind. What do you guys think? How does everyone drain their radiator?

thanks!

Clay

 

[foreverfalcon40]

Well if it is your stat...swap it out for a 160 : )

 

[bowtiefreak]

sounds like the stat is stuck open not letting the truck warm up. I run a 190 in mine...but it is tuned for that. It gets really cold here in the winter and with the 160 in there I had AC all year round

 

[BigClay]

the 350 in my tahoe is stock except for a drop in K&N and some better plug wires, so what degree t stat do I need? I live in NC so really no extremes,.

 

[foreverfalcon40]

they say 180 for NON-F/I and 160 for F/I. But people have 160's in there truck and have no problem.

I don't think you need a tune to run a t-stat...

PM JennaBear on that one.

 

[BigClay]

Anyone know how to drain the radiator?

 

[malones99]

Drain spout on the bottom left

 

[AtomicHoe094]

put a garden hose in it and just let it cycle thru.. take off your hose obviously.. lol..

 

[YNOT]

i used distilled water when flushing, because i don't want all those crappy minerals in my block when flushing.

 

[350VortecSSCT]

Yeah becarefuel when flushing, stuff smells and it just hurts your motor...use a hose. And thermostat, i got a 160 in, damn good, i had with no tune...but now i have a tune.

 

[foreverfalcon40]

Yeah becarefuel when flushing, stuff smells and it just hurts your motor...use a hose. And thermostat, i got a 160 in, damn good, i had with no tune...but now i have a tune.

Ok...You have a 160 t-stat in. Feel the difference? Performance Wise and MPG?

Any noticable difference after the tune? How did you Gauge read?

 

[BigClay]

When you guys say tune, what are you referring to?