Regal (1973-2004) Buick's sporty mid-sized sedan

radiator sludge

  #1  
Old 05-25-2015, 03:54 PM
kianme's Avatar
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Join Date: Feb 2014
Location: Sacramento
Posts: 12
Default radiator sludge

hi. im scared, but boyfriend isn't. but anyways, I NEED, (me) just need some advice or reassurement from other Buick owners about what may be going on with my 2000 Regal.

It overheated the other day. Owned for a year now, never happened before or came close. Replaced thermostat on the spot, (happened to be an auto store i could walk to) but gage was still climbing when driving home. Been sitting in driveway for a week now cuz im nervous. Let it idle to get to running temp, (dead center C|||||||H), and squeezed upper radiatior hose. I COULD SQUEEZE IT. No running water right? We think theres a clog. BUT--
my heater isnt working now either. Didn't know this because its been so hot in Sacramento. But it's not blowing hot.

We're thinking to flush the radiator because it has all that brown sludge in the coolant reservoir and radiator. Here's my issue..........
What is proper way to do this? Does heater have any relevance? Can i damage anything else by doing this?
PLEASE JUST RELIEVE MY ANXIETY WITH YOUR KNOWLEDGE & TIPS!

thank you,
kimberley
 
  #2  
Old 02-14-2022, 11:24 PM
GMP440's Avatar
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Join Date: Dec 2018
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Default radiator sludge

Hello,

I had that happen in my 97 Regal. That's caused by that Dexcool if left in too long. I would flush the whole cooling system and fill with new coolant.
 
  #3  
Old 02-15-2022, 06:50 AM
hanky's Avatar
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Join Date: Sep 2010
Posts: 1,225
Default

Hi Kim,
It is important to know how long you drove the vehicle while it was overheating..

If driven long enough, engine damage can result, that is why we need to know.
 
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