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Old 05-03-2009, 01:52 AM   #1
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Post Coolant color

The coolant in my '96 Bonneville SE has a tint of red in it and when I look inside I can see little pieces of red floating in it. Does that mean its going bad? I haven't had the coolant flushed since I got the car used a year ago.
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Old 05-03-2009, 10:11 AM   #2
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That'* DEX. Would be a good idea to flush the system out. If your going to change to a different kind of coolant, such as green. make sure you flush everything out including the over flow bottle. If you mix DEX and green it will turn sludgy.
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Old 05-03-2009, 07:12 PM   #3
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When I converted from DEX, I drained and capture all the fluid I could, pulled the reservoir off, removed the T-stat housing and flushed with copious amount of fresh water through the radiator, then the block. I had to take a bottle brush and some Simple Green to the reservoir to get all the sludge out. While you are going this far, now would be a good time to replace the T-stat as well.
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Old 05-07-2009, 12:51 PM   #4
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I got the coolant looked at today and the mechanic said everything looks fine. Must not be as bad as I originally thought.
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