I finally have a used replacement heater valve for the sedan, got it installed, and the darn thing leaks out of where the adjuster goes in and out. Only while the heat is set to "warm" as far as I can tell though
Will it stop leaking after a while, or should I just break down and get a new one? Rockauto has some on closeout for $27
Heater valve leaking
- irowiki
- Highest Ranking Member
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- Joined: Tue Apr 02, 2013 10:02 am
- Location: Farmington, NM
Heater valve leaking
Former Tercel Enthusiast (not a practical family car anymore but they still have a place in my heart)
Site administrator, if something is broken, PM me!
87 Corolla FX16, 105k
94 Jamboree RV (Ford E-350), 90k
95 Camry Wagon, 197k
05 Avalon, 199k
Site administrator, if something is broken, PM me!
87 Corolla FX16, 105k
94 Jamboree RV (Ford E-350), 90k
95 Camry Wagon, 197k
05 Avalon, 199k
- Gottolovem
- Highest Ranking Member
- Posts: 1637
- Joined: Fri Jun 29, 2012 4:28 pm
- My tercel:: 1985 SR5 with snow plow,1987 auto 1984 parts car,1987 FX-16 GTS
- Location: Reno
Re: Heater valve leaking
If it was me i would buy a new one that's cheep peace of mind.
If it stops leaking(probably won't) you will always have the when will it start leaking again in the back of your mind
If it stops leaking(probably won't) you will always have the when will it start leaking again in the back of your mind

- Petros
- Highest Ranking Member
- Posts: 11941
- Joined: Sun Jan 28, 2007 6:31 pm
- My tercel:: '84 Tercel4wd w/extensive mods
- Location: Arlington WA USA
Re: Heater valve leaking
you could try some cheap stop leak, it might work. usually it results in a permanent fix if it works at all.
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)
- irowiki
- Highest Ranking Member
- Posts: 3469
- Joined: Tue Apr 02, 2013 10:02 am
- Location: Farmington, NM
Re: Heater valve leaking
Would stop leak help on a moving part?
Former Tercel Enthusiast (not a practical family car anymore but they still have a place in my heart)
Site administrator, if something is broken, PM me!
87 Corolla FX16, 105k
94 Jamboree RV (Ford E-350), 90k
95 Camry Wagon, 197k
05 Avalon, 199k
Site administrator, if something is broken, PM me!
87 Corolla FX16, 105k
94 Jamboree RV (Ford E-350), 90k
95 Camry Wagon, 197k
05 Avalon, 199k
- Petros
- Highest Ranking Member
- Posts: 11941
- Joined: Sun Jan 28, 2007 6:31 pm
- My tercel:: '84 Tercel4wd w/extensive mods
- Location: Arlington WA USA
Re: Heater valve leaking
it might. or just leave in the "on" position for the winter.
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)