HELP!!! leaking antifreeze from one .....

vbryanv · 04-10-2011, 12:08 AM

Wow someone with the same problem i had. I found then at an auto zone and they were pretty cheap. You have to remove the intake to give yourself room to get them out. They were a little tricky to get out. What i did was get a small punch and tap the freeze out plug on the right side to get it sideways. After,I used a vise grip to get it out. Make sure you check out the other plugs. I believe there are 3 freeze out plugs on each side of the motor.

When I replaced mine, I used the rubber plugs with a metal plate on each side and a bolt in th middle. I cut a small notch on the outside plate to use a screw driver so i can hold the plug while i tightened the bolt. It's been about 6 months since the repair and no more leak.

I replaced the first 2 plugs on the intake side (both had pin holes, like someone installed them with a punch) and the center plug on the exhaust(blew out). I was going through alot of cooling system issues at the time (bad t-stat, leaking radiator, throttle body hoses leaking,coolant hose under t-stat and freeze out plugs)... Maybe it was just me but check all you cooling system components.

Green7mgte · 04-11-2011, 12:47 AM

+1 bryan for the instal methods.

interested! · 05-26-2011, 05:39 PM

Hi!
I've been reading these pages recently and a lot has been said about bad thermostats. If you think you have a bad one -- try this : put a known good one and the suspect one in an OLD metal container of water ( enough to cover the thermostats ) and heat the water up -- it should be closed . then as the water starts to boil ,it should open up fully at the same time as the good one , and close when dipped in cold water.
Doing this first -BEFORE you fit the new one will prove the thermostat and give you an idea of it's opening temperature , opening before the water has boiled - engine may be running cool / late or not opening fully -possibility of overheating.
If you have an infra-red thermometer you can measure the temperature more accurately during the test.
Failed thermostats should fail safe --remain open when cold.

ttocsmai · 06-02-2011, 02:21 PM

+2, mine blew out also last year. Quick and easy fix, just a pain to get too

04-11-2011, 12:47 AM	#2
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	+1 bryan for the instal methods. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

05-26-2011, 05:39 PM	#3
interested! 3" Exhaust Join Date: Apr 2011 Location: redhill surrey uk Posts: 142	checking your thermostat Hi! I've been reading these pages recently and a lot has been said about bad thermostats. If you think you have a bad one -- try this : put a known good one and the suspect one in an OLD metal container of water ( enough to cover the thermostats ) and heat the water up -- it should be closed . then as the water starts to boil ,it should open up fully at the same time as the good one , and close when dipped in cold water. Doing this first -BEFORE you fit the new one will prove the thermostat and give you an idea of it's opening temperature , opening before the water has boiled - engine may be running cool / late or not opening fully -possibility of overheating. If you have an infra-red thermometer you can measure the temperature more accurately during the test. Failed thermostats should fail safe --remain open when cold.

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04-10-2011, 12:08 AM	#1
vbryanv 3" Exhaust Join Date: Apr 2010 Location: new jersey Posts: 57	Wow someone with the same problem i had. I found then at an auto zone and they were pretty cheap. You have to remove the intake to give yourself room to get them out. They were a little tricky to get out. What i did was get a small punch and tap the freeze out plug on the right side to get it sideways. After,I used a vise grip to get it out. Make sure you check out the other plugs. I believe there are 3 freeze out plugs on each side of the motor. When I replaced mine, I used the rubber plugs with a metal plate on each side and a bolt in th middle. I cut a small notch on the outside plate to use a screw driver so i can hold the plug while i tightened the bolt. It's been about 6 months since the repair and no more leak. I replaced the first 2 plugs on the intake side (both had pin holes, like someone installed them with a punch) and the center plug on the exhaust(blew out). I was going through alot of cooling system issues at the time (bad t-stat, leaking radiator, throttle body hoses leaking,coolant hose under t-stat and freeze out plugs)... Maybe it was just me but check all you cooling system components.

06-02-2011, 02:21 PM	#4
ttocsmai Stock Join Date: Mar 2010 Location: NJ/NYC Posts: 8	+2, mine blew out also last year. Quick and easy fix, just a pain to get too