Coolant drain plug location on driver-side engine block for 2007 Ford Expedition?

Ford Models Forum Expedition
1

Hi all, I’m trying to locate the coolant drain plug on the driver-side engine block of my 2007 Ford Expedition. I’ve checked the factory service manual without luck. The Haynes manual suggests there should be a square plug located 1-2 inches above the oil pan on each side of the engine block. Has anyone successfully found and used this drain plug, or is the radiator drain the only option?

2

I had the same question when working on mine. The drain plug you’re describing sounds accurate. On the driver’s side, look for a big hex or Torx-like plug near the oil pan—it’s the one I used to drain coolant from the block.

3

@Beckett
Thanks! I found a big hex plug and drained about 1.25 gallons from it. Does that sound about right?

4

Kamden said:
@Beckett
Thanks! I found a big hex plug and drained about 1.25 gallons from it. Does that sound about right?

Yes, that matches my experience. Just remember the full cooling system capacity is around 20-23 quarts, so you’ll still need to flush the rest via the radiator.

5

You don’t need to use the block drain if you’re just doing a basic coolant flush. The radiator drain will get most of it, especially if you remove the lower radiator hose.

6

ExplorerEnthusiast said:
You don’t need to use the block drain if you’re just doing a basic coolant flush. The radiator drain will get most of it, especially if you remove the lower radiator hose.

Good to know. I wanted to ensure I was fully draining the block as well. Thanks for the tip!

7

Haynes is correct for older models, but some newer engines don’t always have accessible block drains. If you drained 1.25 gallons from that plug, it’s likely the right one for your engine.

8

Gentry said:
Haynes is correct for older models, but some newer engines don’t always have accessible block drains. If you drained 1.25 gallons from that plug, it’s likely the right one for your engine.

That makes sense. It’s definitely pulling coolant from the block, so I’ll go with that. Thanks for confirming!

9

If you’re trying to do a complete flush, don’t forget to burp the system when refilling. Air pockets can cause overheating.

10

Kerry said:
If you’re trying to do a complete flush, don’t forget to burp the system when refilling. Air pockets can cause overheating.

Great point! I’ll make sure to follow the proper refill and bleeding procedure.