EOT/ECT 10 degrees AFTER flush

[brazosdog02]

So, I went through two days of crap to flush this truck out. It has 80k miles. I flushed all the old coolant out and did the Restore and Restore Plus procedure as per the document thats floating around here. After that I flushed the cooler for 30 minutes as per the directions, then the heater core and finally teh radiator.

My results are that there was aboslutely no change whatsoever. I also installed a coolant bypass filter.

Now, my question is...what is NORMAL for a NON plugged cooler? I either didn't have a plugged cooler before, and still don't, or I had a plugged cooler before and still do.

What's the average on EOT/ECT spread for non plugged coolers? I feel like I just wasted a bunch of money and time.

I did get a little sand out and a fair amount of black flaky stuff. There was also a bit of scale. The lower radiator hose is pristine inside, the top one, not so much. Even AFTER the cleaning, it has a coating of sand. Its stuck on there so Im leaving in in hopes that the bypass filter catches it.

[jesilvas]

Well, what is your ECT once fully warmed up?

[brazosdog02]

Cruising down the road at 65 it levels out at 191-193 ish. The EOT sits at 201 and goes up and down with the temp. Its a solid 10 degree split.

[brazosdog02]

That is an unloaded temperature. Also, the flush was done for 30 minutes and I pulsed it. Even the flushes showed a little sand, but nothing really unusual. The port where I backflushed had no buildup on it, it was clean. I guess I was hoping for a spread closer to 5 degrees max when I was done backflushing. During flushing, even when I started, there was no gelatinous goo of any kind. Perhaps she is not plugged at all but just the way it is?

[smokersteve]

Your not going to get 5*F as a max. Maybe on a 100% clean 6.0 coolant system and100% new 50/50 in the system.

[Jarrod B]

i prolly wouldnt worry about it till the eot gets up in temps.

[scha0786]

my rebuilt cooler, after countless hours of flushing and replacing radiator, coolant and cooler is typically 3-5.

just cruising around town it hovers in that 2-3 and then when I get crankin up on the highway it bounces around in the 3-5 based on engine load.

thats unloaded with minnesota climate, no ac too

[Jarrod B]

im currently seeing 2-5 in town and 12+ on hwy

[scha0786]

P.S. I love your Avatar jarrod B, LOL!! makes me laugh everytime i see it

[smokersteve]

Originally Posted by scha0786

my rebuilt cooler, after countless hours of flushing and replacing radiator, coolant and cooler is typically 3-5.

just cruising around town it hovers in that 2-3 and then when I get crankin up on the highway it bounces around in the 3-5 based on engine load.

thats unloaded with minnesota climate, no ac too

that is a good example if you want to get that temp difference.