2009 Chevrolet Silverado – Poor Heat If Temperature Set Below 90°F

This 2009 Chevrolet Silverado came in with the complaint that the heater was only mildly hot unless the temperature was set to 90°F. When set to 90° the heat worked very well. I should point out that this truck has automatic HVAC controls as evidenced by the word “Auto” on the control head assembly. I … Continue reading “2009 Chevrolet Silverado – Poor Heat If Temperature Set Below 90°F”

2007 Lincoln Town Car HVAC Actuator Replacement

Now that the Dash Assembly is out of this 2007 Town Car it is time to start changing actuators. The image below is of the backside of the dash assembly. In the very center of the picture is the mode housing. If you look to the right edge you should notice a white round piece … Continue reading “2007 Lincoln Town Car HVAC Actuator Replacement”

2007 Lincoln Town Car A/C Does Not Blow Out Vents

This 2007 Lincoln Town Car came in with the complaint that sometimes the a/c air would not blow out of the face vent. Instead the air would flow from the defrost and floor vents. Sometimes the air would start flowing from the face vents a few seconds after turning the ignition on but would soon … Continue reading “2007 Lincoln Town Car A/C Does Not Blow Out Vents”

2008 Chevrolet Cobalt, Blower Inop

This 2008 Chevrolet Cobalt came in with the complaint that the blower motor did not work at all. It had been working intermittently. Looking under the passenger side of the dash behind the glove box  I found the two wire harness connector at the blower motor. The brown wire should have had battery power on … Continue reading “2008 Chevrolet Cobalt, Blower Inop”

2006 Nissan Sentra A/C Stuck On Heat

This 2006 Nissan Sentra came in with the complaint that the a/c would only blow out hot air and that the driver could not control where the air came out. It was stuck in the defrost position. The fault lies in the plastic housing for the HVAC control head breaking where the cables attach to … Continue reading “2006 Nissan Sentra A/C Stuck On Heat”

2003 Nissan Maxima, No Low Blower Speeds

This 2003 Nissan Maxima came in with the complaint that only the highest blower speed was working. The air would not blow at all, on the lower speeds. Suspecting a faulty blower resistor, I went to the passenger side of the dash. The blower resistor is located near the firewall under the passenger side of … Continue reading “2003 Nissan Maxima, No Low Blower Speeds”

2005 Chevrolet Tahoe, No or Erratic Heat

This 2005 Chevrolet Tahoe came in with the complaint that the heater was working erratically. The customer stated that when she started the engine in the morning there would be no heat while idling and driving down her driveway. Once she had been driving at highway speed for several minutes heat would start coming out. When … Continue reading “2005 Chevrolet Tahoe, No or Erratic Heat”

2006 Jeep Grand Cherokee, Blower Only Works On High

This 2006 Jeep Grand Cherokee Laredo came in with the complaint that the blower will only work on high speed. The blower resistor is located behind the glove box area. I started by removing the two 7 mm screws that attached the lower hush panel to the bottom of the dash. With the two screws … Continue reading “2006 Jeep Grand Cherokee, Blower Only Works On High”

Changing The Recirculation / Fresh Air Door Actuator Part 2

This 2004 Chevrolet Avalanche came in with multiple a/c problems including a code B0268, fault in fresh air /recirculation actuator assembly. This procedure applies to full sized Chevrolet and GMC trucks from 2003 to 2007 Classic. Avalanche, Sierra, Silverado, Suburban, Tahoe and Yukon. 1999 through 2002 Trucks would also be very similar. This post is … Continue reading “Changing The Recirculation / Fresh Air Door Actuator Part 2”

2006 Chevrolet Trailblazer, Blower Inop

This 2006 Chevrolet Trailblazer came in with the complaint that the blower did not work at any speed. This repair applies to 2002 -2009 Chevrolet Trailblazers and GMC Envoys,2002-2004 Oldsmobile Bravada, 2004-2007 Buick Rainier, 2002-2008 Isuzu Ascender. The parts are the same but positions may vary for 2004 and 2005 Chevrolet SSR. All with manual … Continue reading “2006 Chevrolet Trailblazer, Blower Inop”