Hi guys,

Quick one..

A lot of the guides out there on flushing radiators have not mentioned about the 2nd drain plug somewhere near the end of the engine oil dipstick. See attached pic:

My question is how many of you, when flushing the radiator, removes the 2nd drain plug?

<big thanks to http://robrobinette.com/ for the good works as usual>

p/s I did try searching for this but can't find any info on this topic...

 

every time, its the only way to get the coolent out of the internal part of the engine.


i love how the FSM doent mention it.

 

NEVER.....

 

Oh. There's 2?

 

When flushing the RADIATOR, never

When flushing the coolant, always.

Dave

 

Just flushed mine a few weeks back for a new radiator and removed both plugs. Alot of coolant drains from that engine plug.

 

I undid both plugs, out with the old in with the new

 

Fantastic..thanks guys for sharing!

 

since summer is here soon, I might have to try it.... hehe

 

after you drain from the engine plug how did u fill it back up?

you use the heater hose in the UIM/surge tank or u just slowly filled from radiator cap?

 

I've flushed mine a couple of times and didn't undo that plug. I just undid the main plug, drained what was in there. Plugged it back up, filled it with distilled H20, ran the car for 5 minutes, drained again, repeated the process untill H20 runs clear, then filled it with coolant mix... Doesn't hurt to undo both plugs though, up to you.

 

Is it easy to get to the second plug or is it blocked by the under tray? I know the under tray is aesy to take off but i dont have a lot of room under my car to work.

 

I am helping a guy replace his engine and I completely forgot about that plug. Thanks for posting this. We won't make such a big coolant mess when we get the engine out now.

 

Its very easy to get to...just go jack it up and youll see it.

 

Its very easy to get to...just go jack it up and youll see it.