GM Cars & Trucks 1960’s, 1970’s & 1980’s, Blower Inoperative Erratic

This vehicle came in with the complaint that the blower motor would work sometimes but recently it had gotten to where it did not work at all. I hardly ever see vehicles this old in my shop anymore. This is one problem that I have fixed dozens if not hundreds of times over the years … Continue reading “GM Cars & Trucks 1960’s, 1970’s & 1980’s, Blower Inoperative Erratic”

2008 Buick Enclave Replacing The Alternator

This 2008 Buick Enclave CXL came in with the complaint that the battery would go dead while driving. The battery light was on and there was a message on the dash to service the charging system. Something else that I noticed but cannot duplicate here is that there was a steady moan from the engine … Continue reading “2008 Buick Enclave Replacing The Alternator”

2010 Buick Enclave CXL, A/C Does Not Cool Well

This 2010 Buick Enclave CXL came in with the complaint that the a/c is not as cold as it should be during the heat of the day. The problem is that with the ambient temperature being 98° F and the heat index at 112°F the best the vent temperature would drop to was the mid … Continue reading “2010 Buick Enclave CXL, A/C Does Not Cool Well”

2006 Chevrolet Trailblazer, Blower Does Not Work After Resistor Replacement

This 2006 Chevrolet Trailblazer came in with the complaint that the blower would not work after the blower resistor had been replaced. This Trailblazer clearly has manual HVAC controls.   However the customer was sold the wrong part or asked to buy the wrong part. I do  not know which for sure. The part on … Continue reading “2006 Chevrolet Trailblazer, Blower Does Not Work After Resistor Replacement”

2007 GMC Envoy Denali, Blower Does Not Work On Any Speed

This 2007 GMC Envoy Denali came in with the complaint that the blower motor would not work. The customer stated that they had removed the blower motor and connected it to battery voltage and ground. The blower motor worked under this condition. This vehicle also has auto temperature controls as indicated by a digital display. … Continue reading “2007 GMC Envoy Denali, Blower Does Not Work On Any Speed”

GM “C/K” & “S/T” Vehicles, HVAC Recalibration Using a Tech 2 Scan Tool

It Recently came to my attention that some of my readers wanted to see how to perform an actuator recalibration using a Tech 2 scan tool. The pictures are dark and they are best viewed in low light conditions. Connect the scan tool to the DLC and turn the ignition on. After entering the year,make, … Continue reading “GM “C/K” & “S/T” Vehicles, HVAC Recalibration Using a Tech 2 Scan Tool”

2006 Hummer H3, Blower Inop / Erratic

This 2006 Hummer H3 came in with the complaint that the blower had been working sometimes but now the blower  motor had stopped working completely. The most common failure point for this system is the blower resistor and it’s harness connector. This repair applies to 2006, 2007, 2008, 2009 & 2010 H3 Hummer. Both are … Continue reading “2006 Hummer H3, Blower Inop / Erratic”

2002 Buick Rendezvous Water In The Tail Light Assembly

This 2002 Buick Rendezvous came in with the complaint that the left rear turn signal did not work. Also the stoplight and the tail light on the left side did not work. Well three inches of water and the glass part of the light bulb in the bottom of the tail light assembly was pretty … Continue reading “2002 Buick Rendezvous Water In The Tail Light Assembly”

2002 Buick Rendezvous No Run Condition

This 2002 Buick Rendezvous came in with the complaint that it would not run at times. Started out just a problem sometimes but now it is most of the time. I checked for codes and the only one present was for a fuel level sensor. I checked fuel pressure and spark and they were both … Continue reading “2002 Buick Rendezvous No Run Condition”

2006 Chevrolet Equinox, Blower Erratic / Inoperative

This 2006 Chevrolet Equinox came in with the complaint that the blower motor worked sometimes. Most of the time it did not work. The customer had already replaced the blower motor and the blower relay to no avail. I checked the blower fuse in the underhood fuse box to make sure it was both good … Continue reading “2006 Chevrolet Equinox, Blower Erratic / Inoperative”