2007 Chevrolet Monte Carlo SS Emissions 1 Fuse Blows

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”

2004 Cadillac CTS Ignition Will Not Turn Off Completely

This 2004 Cadillac CTS came in with the complaint that the ignition switch would not fully turn off. The engine started and ran normally and could be turned off but the key would stop rotating as if the shifter was still in gear. As a result the battery would go dead. First things first if … Continue reading “2004 Cadillac CTS Ignition Will Not Turn Off Completely”

2005 Buick Century, Hard Crank No Run Condition

This 2005 Buick Century came in with the complaint that sometimes the engine would not start and using the turn signals would cause the engine to stall. It belongs to a local used car lot and they did not tell me all of this. Had to figure it out on my own over several days. … Continue reading “2005 Buick Century, Hard Crank No Run Condition”

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”

2011 Cadillac DTS, Battery Goes Dead Overnight

This 2011 Cadillac DTS came in with the complaint that the battery will go dead if the car sits for more than 12 hours. I traced the drain to the Driver’s Door Module fuse (DDM)  in the rear underseat fuse block.  I used an amp meter connected in series between the battery negative terminal and … Continue reading “2011 Cadillac DTS, Battery Goes Dead Overnight”

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 Chevrolet Cobalt A/C Not Cold

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”

2009 Chevrolet Malibu A/C Controls Inop

This 2009 Chevrolet Malibu came in with the complaint that the a/c controls did not work and the whole system was dead. No blower and no compressor engagement. The customer had already bought and installed a new HVAC control head assembly to no avail. Not only did the compressor and blower not work but none … Continue reading “2009 Chevrolet Malibu A/C Controls Inop”

2000 Cadillac DeVille, B1009 Anti Theft Warning Message and Security Light On

This 2000 Cadillac Deville came in with the complaint that the anti theft system lights and messages were on but the vehicle always cranked up just fine. Of course when the vehicle was dropped off at my shop all of the lights were out and everything was normal.   I did a code check and … Continue reading “2000 Cadillac DeVille, B1009 Anti Theft Warning Message and Security Light On”

2009 Saturn Aura, No Charge Condition

This 2009 Saturn Aura came in with the complaint that the alternator would not charge. Originally it came in for a no crank condition that was diagnosed as a faulty PCM. The vehicle was sent to a local dealership to have the PCM replaced under warranty. The car only had just over 31,000 miles on … Continue reading “2009 Saturn Aura, No Charge Condition”