This 2007 Chevrolet Monte Carlo SS came in with multiple complaints including the Emissions 1 fuse blowing in the underhood fuse box. Also there were several codes being set in the PCM as a result, P0030, P0036, P0053, P0054 and P0443. All can be related back to the blown Emissions 1 fuse. Because the Emissions … Continue reading “2007 Chevrolet Monte Carlo SS Emissions 1 Fuse Blows”
This 2008 Chevrolet Avalanche came in with the complaint that the right front turn signal did not work. This article applies to Avalanche, Escalade, Silverado, Sierra, Suburban, Tahoe and Yukon trucks and suv’s. This generation of GM truck or Suv does not use a turn signal flasher relay as we have always known in the … Continue reading “2008 Chevrolet Avalanche Right Front Turn Signal Inop”
This 2007 Chevrolet Tahoe came in with the complaint that the cruise control had been not working at times but now the situation had changed to not working at all. With or without a scan tool this is a very easy diagnosis. Checking the engine codes there was a code P0573 00 for a fault … Continue reading “2007 Chevrolet Tahoe Cruise Control Does Not Work”
This 2012 Chevrolet Express van came in with the complaint that the horn was stuck on and the the battery goes dead even though the horn has been disabled/disconnected. The customer could not accurately explain how the horn had been disconnected. I figured that the fuse or the relay must have been removed. The cover … Continue reading “2012 Chevrolet Express Van Horn Stuck On Battery Goes Dead”
This 2007 Chevrolet Express G1500 van came in with the complaint that the A/C would not work. Neither the blower nor the compressor would come on. Looking at a wiring diagram revealed that fuse number 10 in the interior fuse box supplies power to both the compressor and blower control portions of the HVAC system. … Continue reading “2007 Chevy Express G1500 Van, Fuse #10, HVAC Fuse Blows”
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”
This 2004 Chevrolet Tahoe came in with the complaint that the a/c was not cold due to the compressor not coming on. Whenever the a/c was turned on the snowflake on the digital display would flash. This Tahoe has auto a/c controls. I checked codes with my Tech 2 scan tool and there was a … Continue reading “2004 Chevrolet Tahoe, Compressor Will Not Turn On”
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”
This 2007 Chevrolet Tahoe LT came in with the complaint that the LBEC2 fuse would blow as soon as it was installed. The owner had tried several with the same result. The two symptoms that the owner noticed that pointed them towards a blown fuse was that the power windows and rear HVAC unit did … Continue reading “2007 Chevrolet Tahoe LT, LBEC2 Fuse #75 Blows”
This 2006 Chevrolet Cobalt came in with the complaint that the a/c would not cool very well. Particularity in city traffic. The compressor comes on sometimes. More so when a cold engine is first cranked. The system seemed to work okay if it was turned on after achieving a speed of 50+ mph. I had … Continue reading “2006 Chevrolet Cobalt A/C Not Cold”