Question about 2009 Chevrolet Impala LS
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Posted on Jan 02, 2017
The thermostat is located in the water pump next to the 2 heater hoses. I think you have to buy the housing to get a thermostat. Not serviced seperately.
Posted on Feb 20, 2009
The thermostat is under the alternator.
If you have a memory saver to keep radio & PCM settings, install it now.
Remove negative battery cable from battery. Remove positive cable from alternator and disconnect harness plug from alternator.
Remove accessory belt noting how it is installed for later reinstallation.
Remove engine lifting hook in front of alternator.
Remove (3) bolts holding alternator on.
Drain coolant from radiator (may want to start this as first step as it takes a while). Loosen pressure cap to aid in system draindown.
Remove radiator hose from thermostat housing.
Remove two bolts from housing and remove from engine.
Reinstall is reverse keeping in mind the following:
Cleanliness counts where thermostat housing seals to engine.
Thermostat spring should point into engine.
If the thermostat has a bleed port, it should go to the 12 o'clock position (up).
Posted on Jan 14, 2010
if you know were your radiator is the big rubber hose on top that connects to this hose goes into thermostat housing inside is thermostat
Posted on Jan 26, 2010
Tips for a great answer:
Nov 25, 2013 | 2008 Chevrolet Impala
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Open the hood of the impla and locate the thermostat housing. Find the largest hose at the top of your radiator, then follow it until it connects onto a portion of the Impala's engine block. The piece that to which the hose connects is the removable thermostat housing.
Use a jack to raise the Impala off the ground, then settle it down onto jack stands. Make sure the car is in park and the emergency brake is on.
Place a large container under the Impala's radiator. Drain the radiator into the bucket by loosening the clamp on the lower coolant hose with a flat-blade screwdriver, then removing the hose entirely so that the coolant flows into the bucket. Once the coolant stops flowing, set the bucket aside.
Use the screwdriver to loosen the clamp on the coolant hose connecting to the thermostat housing, then remove the hose from the housing completely. This will give you access to the bolts securing the housing to the Impala's engen block
Use a wrench or ratchet and sockets to remove the bolts securing the housing to the engine block, then set them aside somewhere where you will not lose them. Loosen and remove the thermostat housing to reveal the thermostat.
Make a careful note of how the thermostat is oriented toward the Impala's engine block. You must install the new thermostat in the exact same way as the old one is installed. Remove and discard the old thermostat.
Use a scraper tool or a razor blade to remove any remaining bits of thermostat gasket from the bottom of the thermostat housing and from the engine block. It is important to get all the remains off; otherwise the new gasket will not seal properly.
Apply a layer of gasket sealant to the bottom of the Impala's thermostat housing, then press the new gasket against the sealant so that it sticks and makes a good seal.
Install the new thermostat in the manner you noted in Step 6, then replace the thermostat housing and secure it down with the bolts. Reconnect the hoses you disconnected--making sure that the clamps are tightened down so no coolant leaks--and refill the Impala's radiator with the coolant you drained out earlier. Use your jack to lower the Impala back to the ground.
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