Question about 2002 GMC Yukon XL

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Replace thermostat on 2002 GMC yukon - 2002 GMC Yukon XL

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 341 Answers

SOURCE: Replace the thermostat on 2002 GMC Envoy

4.2L Engine the thermostat and the neck where the hose goes on is one unit $25 at autozone

  1. Remove the necessary coolant from the radiator.
  2. Remove the alternator, Loosen the outlet hose clamp at the thermostat housing. Remove the outlet hose from the thermostat housing.
  3. Remove the thermostat housing bolts.
  4. Remove the thermostat housing from the engine block.
  5. Clean all of the surfaces of the thermostat housing.
  6. Clean the sealing surface of the engine block.

Posted on Dec 29, 2008

rockitman187
  • 2559 Answers

SOURCE: Thermostat for 2001 GMC Yukon XL

Not true,Although,it is located in the pump,You don't need to replace the pump if the thermostat is replace.See pix
338a358.jpg56f157c.jpg

Posted on Jan 08, 2009

  • 1596 Answers

SOURCE: Oil Pan Gasket Replacement - How to - GMC Yukon 2000








Removal Procedure

Important: The original oil pan gasket is retained and aligned to the oil pan by rivets. When installing a new gasket, it is not necessary to install new rivets.
DO NOT reuse the oil pan gasket. When installing the oil pan, install a NEW oil pan gasket.

Caution: Refer to Battery Disconnect Caution in Service Precautions.

  • Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure
  • Remove the front differential if equipped with four wheel drive. Refer to Differential Carrier Assembly Replacement in Front Axle.
  • Remove the under body shield from the vehicle
  • Remove the oil pan underbody shield.
  • Remove the cross brace if equipped.
  • Drain the engine oil and remove the engine oil filter. Refer to Engine Oil and Oil Filter Change
  • Remove the lower transmission-to-oil pan bolts
  • Disconnect the oil level sensor electrical connector.
  • Remove two front wiring harness retainer bolts.


10. Remove the engine wiring harness retainer bolts from the engine oil pan.
11. Remove the engine oil cooler pipe to oil pan bolt.
12. Remove the transmission oil cooler pipe retainer and the bolt from the oil pan.
13. Remove the starter motor. Refer to Starter Motor Replacement.
14. Remove the left closeout cover and bolt.
15. Remove the engine oil pan. Refer to Oil Pan Removal.

Installation Procedure

Important: The alignment of the structural oil pan is critical. The rear bolt hole locations of the oil pan provide mounting points for the transmission bellhousing. To ensure the rigidity of the powertrain and correct transmission alignment, it is important that the rear of the block and the rear of the oil pan must NEVER protrude beyond the engine block and transmission bellhousing plane.

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Posted on Jan 27, 2009

  • 102 Answers

SOURCE: Need color codes for radio in 2002 gmc yukon denali

2002 GMC Yukon Car Stereo Wiring Guide
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Posted on May 24, 2009

  • 14036 Answers

SOURCE: i need to recharge my ac in a 2002 gmc yukon where

your charge port is under hood on the line going to accumulator.look for black or blue cap with the letter L on it.WARNING BESURE TO WEAR SAFETY GLASSES.

Posted on Jul 20, 2009

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Not true,Although,it is located in the pump,You don't need to replace the pump if the thermostat is replace.See pix
338a358.jpg56f157c.jpg

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Air filter


There should be a panel under the glove box with a few screws. Remove the panel and replace the filters.

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