Coolant Flush, is this the "inlet"

[nickbuol]

I am going to flush (using a "Flush and Fill" kit) my Dex-Cool out tonight, but I've seen some confusing/conflicting information about which line is the "heater inlet" that I should tap in to in order to make sure that I flush out the whole system.

I stole the following image from someone else here and added a green line. Is that, the "top" hose which is closest to the alternator, the "heater inlet" hose that I should be tapping in to? This is for a 2000 GTP...

Thanks.

[Liquifire]

I dont know, but you could fill it up with water and turn it over manually the same way that the belt would turn the pulley and see where it sucks in and where it pumps out....if no one else helps.........

[nickbuol]

Thanks anyway. I ended up skipping the "Flush and Fill" kit (actually bought it, but didn't want to hook it to the wrong line), and instead just drained everything from everywhere else, manually flushed it through the reservoir, radiator top, and from the area under the thermostat until they all ran clean, then put it back together, filled with water, let it run for a LONG time to get up to temp (I could actually see the temp rise to 195* and then drop as the cooler water started flowing until it went up again).

Now I am letting the car cool down. I'll drain everything again tonight, and if it looks pretty clean, put in the right amount of antifreeze (Prestone 'all makes, all models' yellow) which if my math is correct, comes out to about 1.54 gallons (jugs). Top the rest off with water, bleed the lines and call it good. If there is still a good amount of pink color to the water, I may do another 100% water, warm up, and flush, but I hope not. I'd like to go to bed tonight.

Oh, and I am putting in a 180* thermostat when I put actual antifreeze in.

[LOUDANDPROUDGTP]

That is pretty much the way I did mine, except in addition I used the garden hose to pressure flush through the raditor. basically in the top and out the bottom on the opp. side.

[nickbuol]

Actually, I should have clarified. By "radiator top" I mean through the radiator cap AND the top radiator hose (which I did as well as through the engine since I was removing the thermostat anyway)...

So here is the crazy thing. I got done flushing everything, and it all looked clear. I let as much of it drain as I could, and then put it back together. I started putting in the full strength antifreeze in (I needed 1.54 gallons to go in), but it was pretty much full with just 1 gallon in, even after bleeding the line above the t-stat. Maybe things will settle a little more after a drive or two and I can top it off more. If not, I'll have to drain some more out and keep adding until it is the right mix according to my little coolant level tester thingy...

[99prixgt]

i still don't see why people insist on switching from dexcool

[nickbuol]

99prixgt, my Dex-Cool looked nasty at the radiator cap and in the reservoir, but to be honest, when I was draining it, it seems like it was more of a "surface film" than anything. Everything else was coming out plain ol' pink. I did spray off some gunk from the walls of the reservoir, radiator hoses, and the top radiator "neck" where the cap goes.

Makes me wonder if it was replaced shortly before I bought the car a little more than a year ago. At the time it was an 8 model year old car with only 38,000 miles, but the stealership I got it from may have flushed it and thus the reason for it not being really horrible on a 9 year old, 54K mile car.

[Iron Indian]

i still don't see why people insist on switching from dexcool

Because Dex Cool clogs **** and eventully causing problems later on. Car will run cooler with that **** out of there too.

So, cooler running car and problem free antifreeze? I can see why most get rid of Dexcool. I don't miss dexcool at all...........

[Iron Indian]

BTW, i have one of those flush T kits laying around too. I have yet to install it...

[99prixgt]

All coolant causes some type of problem if not flushed when due. The green crusts over, dex gets sludgy, and yellow is the same as dex...

[Iron Indian]

I've have yet to have any problems with green or any others i've used. The only one i've had issues with (along with thousands of others) is Dexcool. I gave Dex a chance when I first got my GTP in 2002. Yep it sucks, I moved on to something way better.

As far as flushing goes, I personally flush mine every year or two which in my opinion is the right way. No way in hell i'm leaving coolant in my car for 5 years or 150k like alot of these brands claim nowadays.

I personally run Premixed 50/50 Peak Global coolant w/ 1 bottle of Red Line Water Wetter...