1995 Toyota 4Runner Leaking water from a small protrusion o

PYXYKA

MEMBER
1995 TOYOTA 4RUNNER
6 CYL
4WD
AUTOMATIC
200,000 MILES

Our 1995 toyota 4runner has been leaking water since we purchased it used about a month ago. It was a slow leak, and we would put water in the radiator and it would be fine.
The other day, we put water in the radiator and by the time we got a couple blocks away, the car was overheating and had NO water left. We looked, and there is not water coming out of any hoses or the actual radiator itself, but out of a small cylindrical protrusion that has a drinking straw-sized hole in the middle. It's located on the engine block, just BELOW the main radiator hose connection. We don't know whether this is a drain plug that was lost, or whether something should be connected to it. What is this part, and what can we do to fix it?

1 Reply

KHLOW2008

MECHANIC
41,815 POSTS

Hi pyxyka,

Thank you for the donation.

Normally such pipes are used for bypass hoses to items such as throttle bodt, IAC etc.

I do not know which one you are refering to and it would be great if you snap a picture and post it so that I can understand which one you are refering to.

In the mean time you should check if any rubber hose is dangling around whihc might have broken off.

Sometimes these hoses are plugged and not used for certain models and you can use someting to plug it temporarily so as to enaable you to used the vehicle while looking for possible solutions.

Are there any abnormal functions of the engine that you notice, eg, high idling speed?