Question about 2004 Pontiac Grand Am

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How do you change the thermostat on a 2004 grand

Want to change my thermostat

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Is it malfunctioning? If so when you replace it, make sure you get one that is rated for fail safe (if it fails, it stays open. First you need to drain the coolant, then diconnect the hose clamp of the big black rubber hose going into the thermostat. (the hose is on the right hand side of the engine as your looking at it) then remove the bolts holding the thermostat down. Pull the old thermostat out, clean off any gasket residue off, ensuring not to get any into the engine. Don't use the premade gaskets, as they fail rather easily. Use a hig-temp silicone RTV, and put a constant bead around it, while circling the bolt holes as well. Put the new unit in, and tighten the bolts. some RTV should seep out a little bit. When you make your gasket, dont use to much, an 1/8 to 1/4 inch thick is fine. Let it cure overnight. Replace the hose, then refill the coolant. Good Luck.

Posted on Jun 04, 2010


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