Question about 2005 GMC Envoy
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Posted on Jan 02, 2017
SOURCE: 99 gmc suburban
Fan clutch screws on to the water pump. You can loosen it with a big adjustable wrench (it is about 1 1/2" or 1 9/16" hex). Leave the bolts for the pulley in so you could wedge a screwdriver under a bolt head to keep the pulley from turning. Give the wrench a hard **** to loosen and it should turn off by hand. Right hand threads so you will be turning it counter clockwise to remove.
Posted on Aug 24, 2008
there are four nuts that you must remove at the front of the pulley between the fan. remove fan, fan shroud,loosen accessory belts. remove water pump pulley and the pump bolts will be exposed. check belts for replacement while you have them loose. reverse procedure to install.
Posted on Apr 29, 2010
Remove belt,center pulley, fan, and three bolts holding pump on. When tightening bolts, find out torque spec first, those little bolts will not take much.
Posted on Aug 08, 2010
SOURCE: 2002 GMC envoy slt 4.2
Sounds like you may have disconnected the battery. Does the rough idle only happen when the defroster or A/C is on? If so clean your throttle body with throttle body cleaner with the battery disconnected. When finished, drive it for 5 or so miles with the defroster / AC off to let the computer relearn the settings. This will solve your problem.
Posted on Dec 21, 2010
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