Thread: Hummm Crazy radiator activity..

Well 67 as the lowest would be awesome. Right now it's only fall and it's 53° and rainy. It's rained all day, and it will rain tomorrow, and the day after that, and the day after that, getting colder and colder... Tomorrow's high is 50° and rainy. Windy, cold, and rainy.

Want to trade? lol

I think it's targeting me. See how warren is right in the middle of 1 long section of clouds, moving N/E so that I will get rain all day. wow...

Ha lol man galveston texas winters consist of 2 days lol

lucky...it went down to 32° last night. It's going to be a cold Halloween.

I feel like I made a similar comment on a thread elsewhere about Dexsludge but here goes:

If you've got the sludge, yank the thermostat housing and see if it's sludged in the block, too. If it is, you have to nuke the entire site from orbit, since it's the only way to be sure.

1) Replace the coolant recovery bottle with a new one. In my experience, it's cheap enough to replace it rather than attempt to salvage, if it's sludged.

2) You can try flushing the radiator, but mine was bad enough that I had to replace it - no amount of flushes came close to getting it all out. Good chance for me to upgrade from the stock 3/4" radiator, anyway. Even after what had to be a dozen flushes over the course of three months, you can still see the Dexcool goodness oozing out when I pulled the rad:



3) As far as the block goes, pull the thermostat housing, stick a hose down there, pull the bottom hose out and point it towards the ground (or a bucket), and flush like hell. I recommend turning the hose on, turning the heater on to flush the heater core out, and then knock out a couple chapters from your favorite book while it flushes. Or get a burger. You'll never get 100% of the sludge out, but dexcool doesn't eat iron, so the block is safe.

4) Refill with a gallon of conventional green coolant, add water to top if off, and never look back. Just to be sure I'd do another flush in the spring to ensure you get as much of the sludge out as possible. You'll never get it all out, though - but it likes to collect near the radiator cap where you can just clean it off.

Ha, my fronts are at like 20%, and rears like 10%. I need to make the appointment soon. We did get a little snow on Wednesday while I was wiring in my dash cam, I was like ..what? is this stuff lol. It was like 45° out. Oh well it's not new to me, I just don't want the warm weather to end. I hate working on my car in the cold. I just changed my t-stat and my hands feel numb.

Originally Posted by hensleya1

Just to be sure I'd do another flush in the spring to ensure you get as much of the sludge out as possible. You'll never get it all out, though - but it likes to collect near the radiator cap where you can just clean it off.

I never had sludge in mine, and I did a good flush to conventional green this spring. And I still had just tiny amount of sludge in the filler neck of the rad. Oh well, it's not very much. Also the sludge is easier to break up when it's hot. So run just water and cooling system flush chemicals for like a week, you should see a lot of it broken up. And you mentioned the heater core, you can pull the hoses that go to it and flush it directly with full hose pressure.