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Just did one last week on my 95 Lumina.It is not for the faint hearted! If you follow the upper radiator hose back to the block you will find the thermostat housing. It is held in place by two bolts. The one is difficult to remove ........the other is very difficult! Remove the hose clamp and upper hose and do your mormal drain down of the radiator. The petcock is on the driver side of radiator.The housing is very tight to the exhaust crossover pipe but you CAN remove the housing without removing the pipe if you are patient. To reinstall you will probably have to loosen the fuel injection box which is right above the housing. I also removed the air filter lid and intake hose. Hope this is helpful........... good luck and be patient!

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โˆ™ 2006-03-20 02:15:11
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Q: How do you replace the thermostat on a 1996 Lumina with the 3100 motor?
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