How do you flush the antifreeze in a jimmy gmc 2000?

Answer 1

find your miss placed owne's manual. locate the drainage valve-usaully a nut with washer. TURN LOOSE THE CAP ON THE RADIATOR WHEN THE ENGINE IS NOT HOT. turn loose the drainage valve and check if the washer is still good. after drain the whole thing and the content of the antifreeze reservoir. refill with water. run your engine for 5 minutes. drain again. tighten the drainage nut, change new washer if needed. add new antifreeze according to the label(add water to dilute). cap back, run engine for 10 minute, refill the reservoir to the max line indicated on the side of the plastic container. you are done. REMEMBER*****DO NOT DO THIS WHILE ENGINE IS HOT*****