THERMOSTAT REPLACEMENT
1) Drain engine coolant. It's quicker to just tear
the housing apart without the pain of draining the coolant, but that way is
quite messy. Either way, make sure the engine has cooled.
2) Below marks the location of the thermostat
housing. To reach the housing it is best to remove the battery and the air filter.
Here's a better view of the housing without the battery and air box in the way.
3) Remove the hose clamp in the red box and the
circled 10mm bolts. With the lower bolt you will need an opened end wrench to
get to it. The housing should then split into 2 pieces. It may require some
force to break the seal of the gasket.
Just another view of the housing:
Here's a couple pics of the new and old thermostats.
5) Installation is opposite of removal. Make sure the
thermostat is situated in the proper way. The smaller end should go toward the
rear of the car. Also make sure to use a new gasket between the housing halves and/or RTV.
6) Refill and bleed the coolant system and check for any leaks.
THERMOSTAT
There are several problems with the cooling system which may
be due to a faulty thermostat. Overcooling, Overheating, Poor circulation in the coolant system. If your thermostat is faulty it
is either opening too early causing overcooling or opening too late (or not at
all) causing overheating. The purpose of the thermostat is to allow the cooling
system to work when a certain temperature is reached.
1. After you have located the thermostat on top of the
transmission, remove the hose from the air bleeder valve.
2. There will be two bolts, remove both and separate the two
halves of the housing.
3. Now you can remove the thermostat.
4. When you install the new thermostat remember to install a
new O-ring as well.
5. Now you can put everything back together the reverse of
how you took it apart.
On a side note, I would recommend that you change your
thermostat every time you change or flush your coolant as a part of routine
maintenance. They are cheap and installation is fairly easy.
ANDY
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