Question about 1999 GMC Suburban
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Posted on Jan 02, 2017
You need to pull the plug wires up and out of their tubes. They can get stuck so twist them left and right to help loosen them first. The plugs are in the tubes. Use a 5/8 plug socket to remove them. Around the tubes you will see large flat nuts. You will need to remove all 4 of these. Also on the top timing belt cover there are 2 10mm head bolts you will need to back out at least 1/2 way for 2 reasons. 1 to free up the wire harness that crosses there and the bolts extend over the valve cover blocking its removal. Then with a screwdriver pry up the metal washers and rubber seals that were under the large flat nuts. The pcv valve needs to be pried out of the valve cover in the center and then the cover will come off.
Reverse to install.
Posted on Apr 20, 2009
You'll need to remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. If needed, you can pull back the weather seal (can't reuse it, but it's not that important) and you will be able to access everything inside the door
Posted on Aug 14, 2009
hello here is the instructions for removing the door panel.
Posted on Jun 19, 2010
SOURCE: have a 1999 GMC Suburban
There is a actuator motor not working .The actuator motor moves the temp door,it is located on the bottom of the blower box,under the dash ,in the middle,it is a flat box,with three screws holding it on,change this out and the problem will be fixed.If this was at all helpful,please rate thank you.
Posted on Aug 16, 2010
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