This 1999 Chevrolet Suburban came in with the complaint that most of the instrument cluster. Also the HVAC control head panel illumination bulbs do not work. Since a couple of them did work, I did not have to worry about fuses and switches being the problem. Just blown bulbs. Disassembly starts with grasping the edges … Continue reading “1999 Chevrolet Suburban, Replacing Instrument Cluster & HVAC Illumination Bulbs”
This 1992 GMC C1500 pickup came in with the complaint that the blower motor was squeaking and the noise was getting worse. The blower motor is located under the passenger side of the dash and has this rubber and foam sound deadening cover over it. I know it seems strange but the first step in … Continue reading “1992 GMC Pickup, Changing The Blower Motor”
This 2004 Chevrolet Silverado came in with the complaint that the air only blows through the defrost and will not blow out of any other location. There were codes B0263 and B3770 stored in the HVAC module. The codes refer to mode actuator faults. To access the actuator, the driver’s side heater floor vent extension … Continue reading “2004 Chevrolet Silverado, Changing The Mode Actuator”
This 2003 Chevrolet Silverado came in with the complaint that the blower did not work on any speed. The ABS and Brake lights were on as well. Testing begins at the HVAC fuses in the driver’s side fuse box that is located behind the dash end cap. The fuses need to be checked with the … Continue reading “2003 Chevrolet Silverado, Blower Does Not Work On Any Speed”
This 1995 GMC C1500 came in with the complaint that the air would blow from everywhere except the front vents. In using the controls, the air flow would adjust from the defrost to the floor. All other functions were okay as well. The mode actuator is located under the driver’s side of the dash, above … Continue reading “1995 GMC C1500, Air Will Not Blow Out The Vents”
This is a list of procedures to replace the multiple actuators on General Motors Trucks and SUV’s from 1999 to 2009. These posts will apply to all of the Full Sized Trucks and SUV’s listed below. There may be slight differences between brands and trim levels. HVAC Calibration Procedure GM Trucks And SUV’s 2003 Chevrolet … Continue reading “Actuator Replacement GM Trucks and SUV’s 1999-2009”
I have separated the information that I have for the model years 1995 through 2012. This list covers the following model trucks, suv’s and vans that were made by General Motors but sold under the Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile and Saab brands. The following list of vehicles use the same blower resistor and … Continue reading “Blower Motor Systems For GM Manufactured Trucks, SUV’s and Vans 1995-2012”
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”
This 2005 Chevrolet Tahoe came in with multiple complaints. Radiator cooling fans on with key off, dash warning lights on, gauges not working, door locks cycling, power windows not working and of course the battery will go dead if left sitting for any length of time. I had checked this Tahoe out a few weeks … Continue reading “2005 Chevrolet Tahoe, Multiple Complaints, Communication Faults”
On this 2005 Cadillac Escalade I had to replace a faulty driver’s blend door actuator. Ironically it is mounted on the passenger side of that dash and requires removal of the lower hush panel. If there is no floor mounted center console there is no problem with removing and installing this panel. If there is … Continue reading “Reinstalling The Passenger Side Hush Panel, 2005 Cadillac Escalade”