Question about 2004 Chevrolet Impala

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Where is the thermostat located on the 2004 Impala. And is it easily replaced?

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  • Anonymous Dec 17, 2008

    where is my thermostat located on my 2004 chevy impala

  • leslieg4892 Dec 19, 2008

    if you change the thermastat on a 2004 chev impala v6 turbo is there a chance you have to do something with the bleeder valve. i heard that it can burn up the head gaskets.


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The thermostadt is located on the intake plenum under the throttle body it requires removal of the throttle body and possibly the shield on the exhaust manifold depending on your tools

Posted on Jan 10, 2009

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Just follow the hose from the top of the radiator to the intake n the thermostat will be right there...takes bout a 30-45 to fix

Posted on Dec 09, 2008

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I have a 2004 impala, how do I find the temp sensor? Already changed radiator, pump. The fans won't turn on until I turn on AC. Pls help

You will need a scan tool to read the coolant sensor, or you can just throw away $ by replacing it blindly. It is located by or on the thermostat housing.

Oct 13, 2014 | 2004 Chevrolet Impala

1 Answer

Changing thermostat 2004 chevy impala

follow upper radiator hose to eng, that's the thermostadt housing 99% of time

Feb 25, 2014 | 2004 Chevrolet Impala

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Engine running hot light came on my 2004 Impala.. I turned heater on high and only cool air came out. The light went out and temp went down.

you may have a thermostat that is starting to give you may not be opening up when it is supposed to..that would be my first suspicion.. should be located inside upper radiator hose where it attaches to the front of the motor.. replace it or test it to see if it is opening up in boiling water.. I personally would just replace it, it should be opening up between 160-180 degrees..

Mar 25, 2011 | 2004 Chevrolet Impala

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Where is the thermostat located in a 2004 chevy impala?

what engine do you have.If it is a v-6 standing in front of vechicle facing car,look on right side bellow the exhaustcrossover tube between the heads

Mar 01, 2010 | 2004 Chevrolet Impala

1 Answer

Locating thermostat on 2004 chevy impala

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

Jan 26, 2010 | 2004 Chevrolet Impala

1 Answer

Where is the thermostat located on the 2003 chevy impala

Fig. The thermostat on this 3.1L is mounted horizontally and uses an offset housing/water outlet

Fig. Exploded view of the thermostat arrangement-3.8L engines


Fig. Thermostat arrangement-3.4L (VIN E) engine


I hope helps with this (remember rated this help) Good luck.

Jan 04, 2010 | 2004 Chevrolet Impala

2 Answers

Hi, I have 2004 3.4 impala and would like to know where the thermostat is located. Is it in the upper or lower radiator hose?

Upper which also calls for remove throttle body air duct assy, reposition air pipe, remove exhaust crossover heat shield, remove crossover, then thermostat housing.31750f6.jpg

Jul 10, 2009 | 2004 Chevrolet Impala

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Thermostat itself is like 8 dollars, from Kragen, or Autozone.

Apr 08, 2009 | 2004 Chevrolet Impala

1 Answer

How to change 2004 impala thermostat

the thermostat is on the rear of engine above the transmission 2 bolts hold its housing bolts are horizontal

Mar 20, 2009 | 2004 Chevrolet Impala

1 Answer

Over heating

sounds like an air pocket or waterpump may be on way out.

Jan 03, 2009 | 2004 Chevrolet Impala

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