1993 Firebird, 3.4L. One of the problems when I bought this car was that the coolant was a horrible rust color. First I just thought it was neglected green coolant, but now I am thinking that it was Dexcool gone bad. Did GM use dexcool in 1993?
Anyway, I spent all morning flushing this stuff out and I was quite successful. I got it to run clear water out the radiator drain with the engine at full temp and the heater core flowing. Filled it back up with 1 bottle of Water Wetter, 6 quarts of Prestone Green Anti-Freeze, 100% mix, and the rest water. My car will be much happier now. Oh, and yes, I did flush out the overflow bottle.
What a mess of "mud" that came out of this thing. My son was asking my why there was mud coming out of my car. Assuming this was Dexcool gone bad, thanks GM.
BTW, this car looks and runs awesome. It had a few minor issues which I have been resolving myself, and I only paid $1500 for it. What do you all think of the price?
Anyway, I spent all morning flushing this stuff out and I was quite successful. I got it to run clear water out the radiator drain with the engine at full temp and the heater core flowing. Filled it back up with 1 bottle of Water Wetter, 6 quarts of Prestone Green Anti-Freeze, 100% mix, and the rest water. My car will be much happier now. Oh, and yes, I did flush out the overflow bottle.
What a mess of "mud" that came out of this thing. My son was asking my why there was mud coming out of my car. Assuming this was Dexcool gone bad, thanks GM.
BTW, this car looks and runs awesome. It had a few minor issues which I have been resolving myself, and I only paid $1500 for it. What do you all think of the price?
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