Question about 2000 Chevrolet Blazer
Check the hoses that go through the firewall into the heater core to see if they are hot. If they aren't you may have air pockets that need to be bled out of your coolant system. If they are hot, you may have a bad vacuum supply to your blend doors. You should have a vacuum supply hose under the dash toward the center. If you have a good supply, you probably need to tear down and inspect the ductwork and boxes.
Posted on Oct 28, 2008
The "blend door" is probably the issue, however the door itself is actuated by an electric motor located on top of the "heater box". You might be able to see the wiring to the motor from beneath the dash, but you will have to remove the whole dash assembly (trust me it's a pain) to access the screws that attach it to the box.Hope this helps.
Posted on Nov 02, 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:
Feb 25, 2015 | 2003 Pontiac Montana
Dec 20, 2012 | 2003 Chrysler Town & Country
Dec 10, 2010 | 1998 Ford Escort
Mar 12, 2010 | 2001 Toyota Tundra
Nov 07, 2009 | 1996 Ford F250 Crew Cab
Sep 11, 2009 | Dodge Pickup Cars & Trucks
May 26, 2009 | 2004 Ford Expedition
Feb 07, 2009 | 1999 Ford Expedition
Nov 15, 2008 | 2001 Mercury Grand Marquis
200 people viewed this question
Usually answered in minutes!