Question about 2002 Chevrolet TrailBlazer
For the I6 engine.... Just changed mine last night at 170k. Remove two top fan shroud bolts 10mm, remove electrical connector on drivers side of shroud. Take top radiator hose off of radiator, move it out of the way. Loosen, but don't remove fan clutch to shroud bolts 4ea 13mm. Using a fan clutch tool loosen the big fan clutch nut, take off. Then loosen the waterpump pulley bolts 4ea 12mm. Next, click the transmission lines out of their plastic holders near the bottom of the passenger side shroud. Next take the whole shroud and fan clutch up and out. This is the hardest part, 2 ways to do it to get past the radiator spout. 1- bend the shroud out and pull up. OR Cut notch in the shroud ( I did this) and pull up and out. With whole assembly out, use a 3/8" ratchet and put it into the tensioner hole and move clockwise to relieve pressure on serpentine belt, remove belt. Remove the pulley bolts, then, slowly untighten waterpump bolts and allow coolant to come out through the bottom. Remove pump 5 bolts. Reinstall everything in reverse order. Cutting the notch in the top of the shroud will knock a ton of time off in installation and re-installation. I just scored the plastic with a utility knife, then used dykes, popped right out in perfect size with one cut with the dykes.
Posted on Dec 03, 2015
Go to www.trailvoy.com and do a search on "how to replace water pump". You will find a thread with a procedure and pictures for the work required.
Posted on Oct 12, 2010
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Posted on Jan 02, 2017
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