what have you gotten done on your blazer today?
Senior Member
Joined: Sep 2009
Posts: 524
From: Brownwood, TX
Today I decided to flush my radiator fluid, as my truck had been running a bit hotter than normal. I popped the cap to find that the Dexron had turned to mud as happens after some time. I hooked up a flush kit and pumped out an incredible amount of gunk. I then looked in the overflow tank and found a pile of mud. I decided that if I capped the radiator and ran the hose on the flush kit, it would flush it out. Almost immediately the water pump gasket sprung a leak. I then endeavored to re-seal it. After completing that task, I put everything back together. Started it, all leaks gone. Approximately 3 minutes later I sprung a pin sized hole in a heater tube. I then replaced that with great difficulty. I tested it, drove it, all was well. I went home, parked it, and went outside later to see a large puddle of antifreeze under my Blazer. Today could have gone better.
Senior Member
Joined: Oct 2010
Posts: 647
From: West-Central MA
Today I decided to flush my radiator fluid, as my truck had been running a bit hotter than normal. I popped the cap to find that the Dexron had turned to mud as happens after some time. I hooked up a flush kit and pumped out an incredible amount of gunk. I then looked in the overflow tank and found a pile of mud. I decided that if I capped the radiator and ran the hose on the flush kit, it would flush it out. Almost immediately the water pump gasket sprung a leak. I then endeavored to re-seal it. After completing that task, I put everything back together. Started it, all leaks gone. Approximately 3 minutes later I sprung a pin sized hole in a heater tube. I then replaced that with great difficulty. I tested it, drove it, all was well. I went home, parked it, and went outside later to see a large puddle of antifreeze under my Blazer. Today could have gone better.
Thank you GM for designing another wonderful product!
Super Moderator
Joined: Sep 2011
Posts: 4,459
From: Northern VA
I to did a system flush and changed out my tstat. The sad part is that I had just done a flush like 6 months ago and it was already mudding up again. I replaced with green stuff this time eff dexcool!!! I will do another flush right before I go to FLorida in August just to get out anything that comes loose between now and then. I also changed my oil and started swapping vacuum hoses until I realized it would be way easier to do with the truck jacked up and skid plates out of the way. Another set of hands wouldnt hurt either.
New Member
Joined: Nov 2011
Posts: 66
From: NJ
What is it with the sludge? I flushed my radiator maybe 2 weeks ago and there was brown sludge galore--granted it was a longggg time since I changed it last! Driving off the parkway yesterday the temp gauge was pinned!! My radiator had been leaking a little for awhile so I figured that was the cause, I was able to drive into a gas station, they checked it out and it was the water pump! Cost me $300 for the job! It's still running hotter then normal tho. Still need a radiator and t-stat.
Still runs like a champ tho!!
Still runs like a champ tho!!
BF Guru
Joined: Oct 2010
Posts: 5,962
From: Summit Ny
2 YEARS AGO I gotten one of those quick oil changes and they gave me a free car wash ...
well today I found the receipt between my owners manual and got her a car wash !
She looks shiny. To bad I dont have any wax for her. =(
well today I found the receipt between my owners manual and got her a car wash !
She looks shiny. To bad I dont have any wax for her. =(