Question about 2003 Chevrolet Suburban 2500
I want to flush my radiator in a 2003 suburban 2500. Where is the drain plug? And do I have to fill it via the overflow?
I generally have stopped even looking for the drain...half of them don't work right even when you do find them. Far easier and faster is to remove the lower hose. If you have a closed system with no cap on the radiator then fill through the reservoir, otherwise fill through the radiator and add to bottle after you are finished. Run the heat on high while filling and wait for thermostat to open and level to drop before final fill.
Posted on Aug 01, 2009
The drain plug is on the driver's side lower radiator corner. This vehicle is a closed system. Fill through the overflow.
Posted on Aug 02, 2009
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Posted on Jan 02, 2017
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