Question about 2002 GMC Envoy
Do i need SPECIAL wrenches to work on the fanclutch and whats the degree of difficulity on this whole project?
I just replaced the water pump on my 2003 Envoy XL with the 5.3L V8. Spent ALL day doing it! Would have been MUCH easier if I had the special tool that holds the water pump pulley still while you turn the nut for the fan clutch. There are 4 holes in the pulley that have to be pinned (at least 2) with a special wrench. I managed to make something myself using a piece of scrap metal and a couple of 5/16" bolts, but it was a royal pain. Tried three different auto parts stores for tool rental, but they only had tools for pulleys with bolt heads sticking out, not holes in the pulley. Autozone.com has online repair information that was VERY helpful. I didn't have to buy the manual because they had all the info on their site. I also used the trailvoy.com forum to get some tips from others that had done it.
Posted on Dec 29, 2008
2006 trailblazer fan clutch water pump. Trailvoy.com has a great how to on this topic. I followed it to the letter, without any special tools. First and formost, leave the belt on, as that will apply the necessary friction to remove the attaching bolt to the hardware. They suggested using a hammer and tap a 1 1/2 open end wrench, worked beautifully. Left the belt on while I turned the nut, and lifted the fan. the only problem I had was with the new parts themselves not lining up, and installing the shroud back into its original location. There are two guide pins at the bottom that line up with guide holes in the radiator frame. If those pins are aligned just right, the shroud will not allow the fanblades/clutch to line up correctly. Also, be sure that the new water pump and new fan clutch match, thread to thread. I had to change the water pump twice for this reason.
Posted on Apr 15, 2012
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Jun 13, 2017 | Ford Cars & Trucks
Jun 28, 2011 | 1993 Mercedes-Benz Mercedes Benz 400 Class
Jan 09, 2011 | 2001 Chevrolet Tahoe
Apr 10, 2010 | 1997 Chevrolet K1500
Jan 14, 2010 | 2000 Chevrolet Silverado 1500
Oct 28, 2009 | 1997 Land Rover Discovery
Apr 05, 2009 | 1996 Chevrolet Cavalier
Feb 10, 2009 | 2000 Porsche Boxster
Jan 27, 2009 | 2003 GMC Sierra 2500HD
Dec 07, 2008 | 2004 GMC Sierra Denali
Jun 11, 2017 | 2002 GMC Envoy
906 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: