DIY: Complete Coolant System Flush (the easy way)

[incubusfc]

That's not correct. Using hot water will just get it to warm up and open the thermostat faster. When you open the t stat it will circulate coolant through most of the passages. If you use cool water it will just take a while longer.

You want to flush it with straight distilled water several times. I did mine 4 times and it's still brown.
I bought a ton of it at the grocery store. I used about 1.5 gal per flush. If its just straight water just let her sit and run w the heat up and fan on low for several min the pull the clip on the temp sensor and stand back with the motor off. It'll pop from the pressure and then you can cap it off, fill and repeat.

[subversion]

That's not correct. Using hot water will just get it to warm up and open the thermostat faster. When you open the t stat it will circulate coolant through most of the passages. If you use cool water it will just take a while longer.

You want to flush it with straight distilled water several times. I did mine 4 times and it's still brown.
I bought a ton of it at the grocery store. I used about 1.5 gal per flush. If its just straight water just let her sit and run w the heat up and fan on low for several min the pull the clip on the temp sensor and stand back with the motor off. It'll pop from the pressure and then you can cap it off, fill and repeat.

Thanks. I'm guessing I just didn't let it run long enough with the cool distilled water I used since I never saw it circulate. I'm going to go at it again tomorrow with boiling water and hopefully get better results.

[subversion]

One final question: after driving the car, will the coolant ALWAYS pour out of the bottom of the reservoir when you unscrew the cap or only when there's air that needs to be purged? I purged it one last time after I drove on the highway and even though the temp gauge didn't budge even at 80 mph for 20 minutes, and the heat on HI was hot enough to burn my toes, the reservoir still purged fluid. Though, I didn't really hear hissing when I unscrewed the cap.