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Where would I find the coolant temp sensor on a 2003 chevrolet 1500 witha 4.8L?

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6ya6ya
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Posted on Jan 02, 2017

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chiquititas
  • 1010 Answers

SOURCE: temperature guage

Right behind the grill around the rad. support on the passenger side (usually) there is a sensor called an ambient temperature sensor. That gives your outside temp. on your rearview mirror.

Posted on May 15, 2008

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SOURCE: Coolant Temp Sensor 03 Malibu

coolant sensor maybe 19 mm key its near the upper radiator hose in the engine thanks pierre

Posted on Dec 06, 2008

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SOURCE: need to know location of coolant temp sensor in 2003 Impala

Need more info. I see from the location of your post that you have a 2002 Blazer. Do you mean a Trail Blazer? Chevy didn't make a Blazer in 2002. The ECT (engine coolant temperature sensor) is located on the driver's side, front of the engine. (on top) It is between the ECM (engine control module aka the engine computer) and the alternator. You will most likely need to remove the alternator and it's belt to obtain easy access to the sensor. If you need to remove the alternator for access, remember to disconnect the battery's negative terminal first. The sensor has a wiring harness with a connector mounted to the top of it. After you remove the electrical connector, the sensor will screw out using a deep socket and ratchet. You will loose some coolant (antifreeze) during the change, so make sure you have some DexCool antifreeze on hand.
Charlie

Posted on Mar 04, 2009

  • 1 Answer

SOURCE: location of coolant temp sensor on 2003 chevy

Its on the driver side head. Theres a plug and sensor on the head.

Posted on Mar 28, 2010

johnjohn2
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SOURCE: where is coolant temp sensor located on 2003 gmc

heres a diagram to show you where the coolant temp sensor is located, its behind the alternator on the left side (driverside),the sensor just unplug the connector and then unscrew it and out it comes.

Posted on Jun 21, 2010

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Right behind the grill around the rad. support on the passenger side (usually) there is a sensor called an ambient temperature sensor. That gives your outside temp. on your rearview mirror.

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