Question about 2006 GMC Envoy 4.2

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Need to replace coolant temp sensor on 2006 gmc envoy 4.2 liter engine

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Coolant Temp Sensor

The sensor is located on the drivers side engine block...although you can see if from looking from the top of the engine, you would have to get under the vehicle and look up to replace it. Be aware that it takes a special tool to unscrew the old one and screw in the replacement.


Posted on May 11, 2009

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SOURCE: check engine light....coolant temperature sensor

take altanator off and it is located right behind

Posted on May 25, 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

duane_wong
  • 6826 Answers

SOURCE: How do I check and possibly replace the engine oil

Oil Pressure Test Check for proper oil pressure at the sending unit passage with an externally mounted mechanical oil pressure gauge. A tachometer may also be needed, as some specifications may require running the engine at a specific RPM.

  1. While the engine is cold, locate and remove the oil pressure sending unit.
  2. Following the manufacturer's instructions, connect a mechanical oil pressure gauge and, if necessary, a tachometer to the engine.
  3. Start the engine and allow it to idle.
  4. Note and record the oil pressure reading when the engine is cold. The engine may need to run at a specified RPM, if so check the vehicle's specification.
  5. Run the engine until normal operating temperature is reached.
  6. Check the oil pressure reading again with the engine hot and record the value. Turn off the engine.
Compare the hot oil pressure reading to the specification. If the reading is low, check the cold pressure reading against the specification. If the cold pressure is well above the specification, and the hot reading was lower than the specification, the engine may have the wrong viscosity oil. Change the oil, making sure to use the proper grade and quantity, and then repeat the test.
Low oil pressure readings could be attributed to internal component wear, pump related problems, a low oil level, or oil viscosity that is too low. High oil pressure readings could be caused by an overfilled crankcase, too high of an oil viscosity or a faulty pressure relief valve.

Posted on Oct 09, 2010

  • 7353 Answers

SOURCE: 2005 GMC Envoy 4.2 L

Yes, Have a repair shop replace it, it comes with a new housing.

Posted on Feb 01, 2011

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2 Answers

How to replace coolant temp sensor on 06 gmc envoy


Usually threaded into thermostat housing. Plug has 2 wires usually. Unplug, socket to loosen...Put some thread tape on new sensor.

Jun 22, 2016 | 2006 GMC Envoy

1 Answer

After replacing the fan clutch and water pump do i have to reprogram the computer on a 2003 gmc envoy?


No! there is nothing to reprogram. The sensors in the coolant system and the temp sensor for the fans dont need to have anything done to them. If you are not getting any check engine light, you are good.

Feb 16, 2014 | 2003 GMC Envoy Xl

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Where are the oxygen sensors located on a 2006 gmc envoy


We have 2 locations, upstream before the CAT, and dowstream below the CAT. The upstream is on the passenger side at the exaust manifold very easy to access from the top. The downstream one is after the cat, accessible from underneath. The connector for this one is a PIA, up near the top of the tranny. But doable if you're in the right position.

Jan 11, 2014 | 2006 GMC Envoy

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Where is the engine coolant temp sensor on gmc envoy 2004 xuv


More than likely the thermostat is stuck open. You should replace the thermostat and the temp sensor. See picture below for location.

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Apr 04, 2013 | 2003 GMC Envoy

1 Answer

Where is coolant temp sensor located on 2003 gmc envoy v6? How do you replace it?


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.

Jun 21, 2010 | 2003 GMC Envoy

1 Answer

I have a 2005 GMC ENVOY with a sensor reading of 0128 and they said it was my sensor bad. But now i am loosing power going up hill. Does this mean i have another problem? If so what could it be?


PO-128 Coolant Thermostat, Temp Below Regulating Temperature

Leaking or stuck open thermostat
Coolant temp sensor
Cylinder head temp sensor
Engine coolant level

You could have more than one issue

The only way to answer your questions,is to put a scanner on your vehicle,and see what codes you have.
The codes you get,do not indicate a failure,necessarily
You have to follow a diagnostic process,to find any problems.
If you have been going to auto parts stores,to have codes read,and have no knowledge or intension of doing your own work,you need to find a good repair shop, and just have it repaired,fairly soon

May 25, 2010 | 2005 GMC Envoy

2 Answers

Location coolant temperature sensor 4.2 liter envoy ?


COOLANT TEMP SENSOR IS MOST LIKELY BAD. NEED TO CONNECT TO THE OBD CONNECTOR WITH A COMPUTER AND SEE WHAT TEMP THE COMPUTER IS SEEING.

Mar 22, 2009 | 2003 GMC Envoy

2 Answers

Coolant Temp Sensor


The sensor is located on the drivers side engine block...although you can see if from looking from the top of the engine, you would have to get under the vehicle and look up to replace it. Be aware that it takes a special tool to unscrew the old one and screw in the replacement.


Aug 06, 2008 | 2004 GMC Envoy

5 Answers

Check engine light on - 2003 gmc envoy XL


That code represents a lower than expected reading for temperature (coolant). First thing to do is check your coolant level, as if it is low, then the sensor can not read correctly. Second, you may have a thermostat that is stuck open, allowing the coolant to cool off too much. The sensor should be mounted on top of the engine, near the thermostat housing.

May 18, 2008 | GMC 2003 Envoy XL

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