Question about 1993 Chevrolet Lumina

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Thermostat location how do i locate and replace the thermostat on my 1997 chevy lumina v6 3.1

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  • heraens365 May 08, 2009

    acually this is a 3100 v6 engine in a 97 lumina so there is no housing at end of radiator hose any more help would be great

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  • Chevrolet Master
  • 3,854 Answers

The thermostat is in a difficult position. Follow the upper radiator hose and it leads into the block under the throttle body. 
Remove the air filter assembly and you'll c what is the exhaust manifold crossover pipe right in front of the thermostat housing.
 NICE, it gives you very little room to remove the 2 bolts to the housing and once u remove those then you'll find you have the thermostat housing loose but because of that darn exhaust manifold crossover pipe u don't have enough room to take the thermostat housing out to change the stinking thermostat. 
So from what you can see, you have to remove the heat shield which is cased around the exhaust manifold crossover pipe and if you still can't get enough room to remove the thermostat, (which you amy find out)then you'll have to remove the crossover pipe as well just to change the thermostat. 
If you have to remove the crossover pipe then their are 2 bolts on both ends of the pipe leading into the manifolds. But then the tough parts done and once u switch the thermostat over and ATTENTION:remove any old gasket material and put a new gasket in it's place then installation is reverse of removal. 
Good luck and hope this helps,

Posted on May 08, 2009

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  • Master
  • 1,489 Answers

Trace the radiator hose (upper first, lower next) back to the engine block. At the end of the hose it will connect to a housing -- thermostat is in there. Remove housing, note which way tstat is installed, put in new thermostat, etc.

You'll need a new gasket and need to clean old gasket off block/housing.

Posted on May 08, 2009

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Posted on Jan 02, 2017

Molson02536
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SOURCE: location of thermostat in 1997 chevy luminia 3.1 liter engine

The thermostat is located in the thermostat housing which is on the intake manifold under the throttle body (drivers side) to replace it, your going to have to remove the heat shield to the exhaust crossover and you can remove the two bolts that hold the thermostat in place with the right extension and swivel.
Note you only have to remove one bolt and looses the other one, the housing has a slot cutout to slide it out. Good luck and be safe.
Thank you for suing fixya and here are two links to the type of engine used in your Lumina.
http://www.compnine.com/index.php?u=1&year=1997&artnbr=MW01-008&artsfx=NULL&supplgroup=NULL&catcode=18W&modelcode=W&makecode=C&modelseries=WA&uid=1&modelid=1147577283&capuid=1&majorgroup=01&grouptype=B
http://www.compnine.com/index.php?u=1&year=1997&artnbr=MW01-042&artsfx=NULL&supplgroup=NULL&catcode=18W&modelcode=W&makecode=C&modelseries=WA&uid=1&modelid=1147577283&capuid=1&majorgroup=01&grouptype=B

Posted on Jun 02, 2010

onyeredson
  • 404 Answers

SOURCE: where is the thermostat located on a1999 lumina v6?

Hi! **** here! V6 Chev's can't be much different to Small blocks can they? Follow your Top Hose from the Radiator to engine block, where it connects does a bubble, half domed aluminum casing appear? with possibly two securing nuts/bolts? If so YahOO! youv'e just found the illusive little blighter! Good Luck! Paul 'W' Onyer~EDson(:0) {#><U.K. Please rate my effort!

Posted on Jan 20, 2009

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The thermostat is located in the thermostat housing which is on the intake manifold under the throttle body (drivers side) to replace it, your going to have to remove the heat shield to the exhaust crossover and you can remove the two bolts that hold the thermostat in place with the right extension and swivel.
Note you only have to remove one bolt and looses the other one, the housing has a slot cutout to slide it out. Good luck and be safe.
Thank you for suing fixya and here are two links to the type of engine used in your Lumina.
http://www.compnine.com/index.php?u=1&year=1997&artnbr=MW01-008&artsfx=NULL&supplgroup=NULL&catcode=18W&modelcode=W&makecode=C&modelseries=WA&uid=1&modelid=1147577283&capuid=1&majorgroup=01&grouptype=B
http://www.compnine.com/index.php?u=1&year=1997&artnbr=MW01-042&artsfx=NULL&supplgroup=NULL&catcode=18W&modelcode=W&makecode=C&modelseries=WA&uid=1&modelid=1147577283&capuid=1&majorgroup=01&grouptype=B

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