Coolant flush time?

[UrbanWolf]

Flush with white vinegar. Then flush with water 2x.

I need to find where the thing is to drain the coolants. I'm a car noob.

[Great-Kazoo]

There are some oil-ish brown stuff in my car's coolant tank, I think the previous owner put oil in there by accident or something. So should i do a coolant flush? $150 is a bit much for my current pocket.

Almost all of the Ft fun repair shops run discounts . The most expensive i've seen is $90. Next week the CSU coupon book should be out

Oil seems clean.

Pop the valve cover breather. Check to see if there's any condensation on it. Also do a quick smear test inside the valve cover, for a grayish off color. Thats another indicator of intake, or head gasket issues.

GM vehicles (98-2003ish) are known to have intake gasket issues. Nothing serious but a potential issue. Just because the oil seems clean does not mean there are issues.

I need to find where the thing is to drain the coolants. I'm a car noob.

You better not be seen doing any flush n fill in ft fun. The hazmat / FD will hammer you with mega fines.

The easiest way to see if there is any head, intake or other oil contamination issues is to have a sniff test performed.

There is the cheap way= I can get by doing it myself
There is the expensive way = Pay for the flush n fill.

In december or jan when it's 20* 6" of partly cloudy on the street and a -2 wind chill factor is not the time to discover the few dollars saved cost you an engine.

There are a few mechanics / techs / wrenches here with the right tools, to trouble shoot what if any issues you may have.