If you follow the upper radiator hose to the engine, you will see it is clamped on to the thermostat housing that is held on with two bolt to the intake manifold. When you take out the two bolt for the thermostat housing the thermostat sits under the housing.
You might think it should only take minutes to replace the thermostat. But due to the minimal amount of clearance between the thermostat housing and exhaust cross over pipe, it took me hours (and my wife's small fingers). Some suggest that the cross over pipe be removed first. In Hind site I believe that might be true. However, anyone who has disassembled exhaust components knows the nightmares waiting there; rusted fasteners are always difficult to remove and often break.
I settled for disconnecting the three hoses from the coolant manifold tube and removing the one nut which stabilizes it on the thermostat end of the intake manifold. The coolant manifold tube can then be moved enough to gain some room without completely removing it. Leave the other end connected. Also disconnect the sensor wires from the air cleaner boot and remove it too.
One of the two capscrews which hold the thermostat housing in place can be removed easily with the right size socket, six inch extension, and ratchet. It is the second, "demon" capscrew, which will demand hours of your life before surrender.
I purchased one of those ratchet type, boxed end wrenches with a swivel head to access the second capscrew. A word of warning; do not loosen this capscrew with the ratchet end of the wrench to the point that the wrench can not be taken off the head of the capscrew. As you back the capscrew out, you lose clearance between the head of the capscrew and cross over pipe to the point that you can't get your wrench off the capscrew. Due to the nature of the wrench and its ratchet feature, it will only turn the capscrew in one direction. You can't tighten the capscrew to get your wrench back!
Once the two capscrews are removed, a bit of twisting and turning of the thermostat housing and poking with a screw driver to separate the thermostat will allow both parts to come free. Be sure to retrieve the rubber gasket washer from the old thermostat. Inspect the thermostat housing and capscrews for damage and replace, as required. You will now notice that the housing has one hole and one slot. There is no doubt that both capscrews have to be removed completely to free the housing for this method, despite the slotted hole. For the effort so far definitely get a new thermostat before assembling even if you determine the "old" one is still good.
Position the new thermostat in the intake manifold, spring side first. Delicately place the thermostat housing over the thermostat and hopefully it will remain in place. More than likely it will be knocked loose while trying to position the thermostat housing. Use a screw driver carefully to put the thermostat back in place. I tried to start the demon capscrew first before positioning housing but it only got in the way. With that slot in the housing I thought it might be the way to go; didn't work.
Once the housing is in position, install the "easy" capscrew finger tight to keep the parts in place. I then used a magnetic wand to help position the second capscrew in its threaded hole, but it took my wife's small hand to start the capscrew. Once the second capscrew was started, the rest all seemed easy; ten minutes it was all back together. One major footnote as far as I'm concerned. We used a slightly shorter capscrew (M8 1.25 x 20) in place of the demon capscrew. It was easier to "find" the hole, hold in place, and start threading into the hole.
Check the coolant level in the radiator. Make sure after you fill the radiator with coolant, you bleed the air out of the system. On the top of the thermostat housing you will see a bleeder screw. Open it up after the car is at operating temperature and bleed of the air. Let the coolant flow out till you have a steady stream of coolant.
A thermostat is only $7-20 depending on the name brand.
weher thermostat locaked for impala 2001
It is at the engine end of the top radiator hose.The housing is the thermostat housing and the thermostat is located therein.
The thermostat is located in the housing at the engine end of the top radiator hose.
It is a brass fitting on the top of the thermostat housing.
You can replace the thermostat on your 2010 Chevy Impala 3.5 by removing the water hose and the 3 bolts from the thermostat housing. The thermostat will come right out. Reverse the process to install the new thermostat.
Where is the thermostat located in a 2004 Chevy SSR
Take it to a Chevy dealership.
Drain the radiator down 1/2 way. At the engine end of the top radiator hose is the thermostat housing. Remove the housing and install a new thermostat.
The Chevy Impala did not come out in 2004. The eighth generation Impala came out in 2000 and then the ninth generation Impala came out in 2006. The tenth generation is expected for 2014.
The engine thermostat, on a 2008 Chevy Impala 3.5 V6, is located on the lower front side of the engine. The thermostat will have a water hose going into the top of it.
Where is the tachometer on a 2004 chevy impala ss
becaus the 2004 Chevy impala does not have automatic lights and they have to be turned off manually
The thermostat is located in the thermostat housing at the engine end of the top radiator hose.
Show me the picture of it
What year, what size engine? 2004-2008 Chevy impala
Partially drain the radiator down . Remove the upper radiator hose at the engine end. The housing is where the thermostat is located. Remove the two bolts and clean Both surfaces. Install the new thermostat.
If a 2001 Chevy Impala will not start after replacing a thermostat, perhaps it is possible that a sensor was bumped unknowingly. Check all of the sensors that might have been touched during the changing of the thermostat to see that they are all still plugged in.
What does trac off and abs light mean on a 2004 chevy impala
My key Bork off in my trunk
The thermostat on a 2004 Chevy Venture is changed by draining the radiator, removing the upper radiator hose, and unbolting the thermostat housing. The old thermostat and gasket can then be removed and replaced.
your trunk lid