Question about 2000 Pontiac Grand Am GT

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NEED TO CHANGE THERMOSTAT ON 2002 GRAND AM - 2000 Pontiac Grand Am GT

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Pull top hose off the radiator making sure its cool to work on! now remove the whole hose assembly and this will expose the thermostat. pull out old one put in new one and reverse the whole procedure. Make sure you check the coolant levels after you been driving it around for awhile.
can i please get a very helpful response...... thanks!

Posted on Oct 04, 2009

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I just finished changing the thermostat on my daughter's 2002 Grand AM and everything I read on here was garbage. THIS is how it's done: remove the air cleaner cap and the filter and set aside. Disconnect all the electrical connections around the area of the air intake hose, the throttle body and the one in the actual hose. Remove the air snorkle (the BIG rubber hose that goes from the air filter box to the throttle body) and set it aside with the air filter. The throttle body is the item bolted to the side of the engine and is where the snorkle connects to. One end is the air filter box of the snorkle hose and the other end is the throttle body. REMOVE THE THROTTLE BODY! Believe me, you'll spend less time and will be able to get to everything. The high pressure coolant line is the metal line that's a bear to work with. Where it is bolted to, take the nut off then that stud also holds in the throttle body. There are 2 screws for holding that in. The one just mentioned and another one much easier to get to on the same side but towards the top and front of the car. Gently remove the throttle body. It's a fight to get to the screws for the thermostat housing otherwise. There will be 2 screws for the thermostat housing. The top one is fairly easy to get to and the bottom one is the bear. You'll need a stubby 13mm wrence to do it - recommend an open end once you crack it lose with a box end wrench. You'll have to finger it out after you get it loose enough. There's not enough room for sockets! Remove the 2 screws then you can get to the thermostat. Keep track of your screws and the wires. Reverse the order to assemble.

Posted on Jun 07, 2012

  • Fred Rak Jun 07, 2012

    I just finished changing the thermostat on my daughter's 2002 Grand AM and everything I read on here was garbage. THIS is how it's done: remove the air cleaner cap and the filter and set aside. Disconnect all the electrical connections around the area of the air intake hose, the throttle body and the one in the actual hose. Remove the air snorkle (the BIG rubber hose that goes from the air filter box to the throttle body) and set it aside with the air filter. The throttle body is the item bolted to the side of the engine and is where the snorkle connects to. One end is the air filter box of the snorkle hose and the other end is the throttle body. REMOVE THE THROTTLE BODY! Believe me, you'll spend less time and will be able to get to everything. The high pressure coolant line is the metal line that's a bear to work with. Where it is bolted to, take the nut off then that stud also holds in the throttle body. There are 2 screws for holding that in. The one just mentioned and another one much easier to get to on the same side but towards the top and front of the car. Gently remove the throttle body. It's a fight to get to the screws for the thermostat housing otherwise. There will be 2 screws for the thermostat housing. The top one is fairly easy to get to and the bottom one is the bear. You'll need a stubby 13mm wrence to do it - recommend an open end once you crack it lose with a box end wrench. You'll have to finger it out after you get it loose enough. There's not enough room for sockets! Remove the 2 screws then you can get to the thermostat. Keep track of your screws and the wires. Reverse the order to assemble.

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davidg65
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SOURCE: 2002 Pontiac Grand Prix Thermostat

as you face the engine the thermostat bell is on the right (drivers side) Follow the radiatoe hose. Remove the two bolts and raise the bell still attatched to the hose. the thermostat is there with the rubber seal. You can gently pry the thermostat out with a screwdriver or something similar. Put in new thermostat be sure it is the same as the old one, and then replace or change the seal (be sure it is the smae size and thickness as the old one as I got the wrong size from Napa) Then replace the bell, and tighten, but not over tighten. I hope this helps!

Posted on Jan 31, 2009

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