Question about 1999 GMC Sierra
Fan is blowing but no heat comea out
Mine had this pboblem. took it to gm dealership. they wanted $700 for new box. i took it home to chech it out myself and found an ink pen had got through vents and had the heater to defrost door fouled. fixed it in 20 minutes
Posted on Jan 15, 2009
Does the temperature guage go up to normal if so probably either a bad blend door motor or broken blend door or heater core cloged you can check the lines if one is cooler than the other then it is most likely the cause
Posted on Dec 31, 2008
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 20, 2014 | 1995 GMC Sierra
Jan 18, 2013 | Cars & Trucks
Sep 29, 2011 | 2006 GMC Sierra 1500HD
Jun 11, 2011 | 2006 GMC Sierra 2500HD 2WD
Jan 02, 2011 | 2006 GMC Sierra
Mar 05, 2010 | 2005 GMC Sierra
Dec 31, 2008 | 1999 GMC Sierra
182 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: