My 99SSEi radiator flush - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-24-2003, 10:33 AM   #1
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Default My 99SSEi radiator flush

Hi everyone, I need to clean my radiator coolant. But I like to know the right way to know how to do this. Does anybody ever done this and not get injured? Can anyone help me by telling me what to do in changing the coolant and clean the radiator and flush it, what kind of chemicals to use to clean and procedure befor adding the coolant. DEXCOOL.

Thank you I'd really apreciate this.
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Old 04-24-2003, 04:15 PM   #2
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You're best bet is to take it into a shop that has some vacuum machine coolant flush device. Since the do it yourself trick doesn't work well.. the old fashion way was to stick a hose into the radiator.. unplug the return hose and run the water till it comes out clear.. but even then it doesn't do well since antifreeze is harmful to the environment and the treated water nowadays might leave unsightly calcium residue inside. A shop would have a machine that forces the water through much better and clean the guts of the cooling system better.
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