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Where are the Drain valves on 2003 Impala radiator?

I need to flush the radiator and can't find any valves to drain it.

Posted by Anonymous on

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Posted on Jan 02, 2017

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SOURCE: radiator flush

The drain plug should be located on the drivers side on bottom of radiator. Should be a flat tab that you can use to unscrew it. Or the faster/messier way of doing it, is to pull of lower radiator hose. Alot faster but alot harder to catch coolant to reuse.

Posted on Sep 06, 2008

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SOURCE: flushing radiator

it should have a plug at the bottom. chech the mounts some times the drian thru there good luck

Posted on Sep 20, 2008

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SOURCE: how to fill radiator fluid in 2003 suburban 2500

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

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SOURCE: Where is the radiator drain valve located on the

I First, you must remove the black air deflctor that runs underneath the radiator across the car. Maybe about 8 bolts. Even then I couldn't find the drain plug at first. It is on the driver's side. Beneath the radiator there is a heavy metal Mounting bracket. Almost looks like a crossmember. About an inch in from the left (driver's) side bottom of the bracket there is a large round hole with a rubber grommet. In the center of this hole it the outlet of the drain. If you reach directly above it on the back side of the radiator, i.e. come around back on the bracket and looking forward, you will find the drain ****. It is black plastic and has 2 ****, not a full petcock handle. It is still hard to see, even after removing the air deflector. The air deflector is the one people knock off by running too far forward when parking. I hope this helps .Remember the 2 or 3 vents at top of radiator hoses when refilling the system.
The radiator does have a hard to see drain plug on the left drivers' side. There are 5 10MM screws holding the air deflector on. The block has removable plugs, one 14MM hex next to the oil filter and one in about the same location on the other side of the block toward the firewall under the exhaust manifold.

Posted on Oct 30, 2009

  • 15935 Answers

SOURCE: how do you drain the radiator for a flush and fill?

See the arrow in the pic.


That is the petcock.

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Posted on May 11, 2010

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