Question about 2003 Chevrolet Impala

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How to change a thermostat on a 2003 chevy impala

The location of the thermostat also

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  • Anonymous Mar 05, 2009

    i need to change the thermostat in my 03 3.4 liter impala

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The thermostat is located on the drivers side of the car under the throttle body assembly. just follow the hose to the thermostat housing. the easiest way to change it is to take off the throttle body. the throttle body gasket isnt expensive to replace

Posted on Nov 01, 2011

5 Suggested Answers

  • 1 Answer

SOURCE: Thermostat in a 2003 chevy venture van

no you dont need a special tool you have to take the throttle body off it makes it sooooooo much more simple.

Posted on Jan 27, 2009

bigawgntown
  • 13 Answers

SOURCE: Thermostat on 2002 Chevy Impala

the best thing to get is the Haynes manual for your car at advanced auto or autozone or somewhere like that and the book will tell you how to take everything apart and put it back. i think the manual is about $16.00

Posted on Jul 30, 2008

  • 1170 Answers

SOURCE: Where and how many o2 sensor's on a 2003 chevy impala?

There are two sets of 02 sensors on most cars today. On set is set directly behind the header, one on each side, if it is a V engine. This set is used for the engine's ECU to control timing as well as other variables. The other set is placed on a bung in your Catalytic converter. This 02 sensor is used for emissions purposes only.

Posted on Jun 01, 2010

  • 1 Answer

SOURCE: Thermostat in a 2003 chevy venture van

the bottom boult is hard but can be done need to use a 10 or 12 stubby wrench and take a pry bar and lighty pry heat shild away to get bottom bolt dont need to take it out all the way just loosen and slide down

Posted on Aug 17, 2008

  • 1 Answer

SOURCE: changing a thermostat on 2008 Chevy Impala 3.9L

There are two hoses that come from the radiator. The very bottom hose is conneted to the thermostat housing. Looking at the car from the front under the hood just below the first hose is another one same in diameter and there it is two bolts and you done.

Posted on Dec 03, 2010

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Where is thermostat on Chevy Impala 2003


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I can't locate the thermostate on my 2003 chevy impala.


Follow the top rad hose. Should lead to a pipe that curves just about under the throttle body (drivers side) if i remember correctly. Thats where your thermostat will live. Not a very easy one to do.

Mar 26, 2010 | 2003 Chevrolet Impala

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

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

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

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I have to replace thermostat and the PCM


Thats WAYYYYYYY too much money!!!!! I changed the PCM and thermostat on my Impala myself for about $125. Even if you had someone install it for you it shouldn't be much more than 2 hours labor. I'm not sure what car you own but the PCM shouldn't run that much.

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I have replaced the radiator in my 2003 Chevrolet Impala LS. The car started running hot and shut down. Took it to a radiator shop and found a crack in the radiator. I have replaced 2 thermostats in the car already. I noticed water running from under my car today and it seems it was coming back out of the overflow. I am stumped as to what is going on with this car.

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