2008 Chevrolet HHR-Reduced Power-Code P0641

This 2008 Chevrolet HHR came in with the complaint that the check engine light would come on, the reduced power message would display and the car would no longer accelerate. There was a code P0641 stored. The code p0641 means that the 5 volt reference is outside of the 4.8 to 5.2 voltage range needed … Continue reading “2008 Chevrolet HHR-Reduced Power-Code P0641”

2006 Chevrolet Silverado-Driver’s Temperature Door Erratic

This 2006 Chevrolet Silverado came in with the complaint that the driver’s temperature door would shift between heat and a/c without the controls being adjusted. The actuator had been replaced with a quality ACDelco part. Testing found that the actuator counts on the scan tool would fluctuate when the actuator harness was wiggled around slightly. … Continue reading “2006 Chevrolet Silverado-Driver’s Temperature Door Erratic”

1995 Chevrolet Caprice-Engine Stalls

This 1995 Chevrolet Caprice came in with the complaint that the engine would stall if the headlights were turned on or if the brake pedal was depressed.  The problem was also intermittent. The strange  thing was that it would feel like the engine was  running out of fuel rather than just an instant turn off.  … Continue reading “1995 Chevrolet Caprice-Engine Stalls”

2008 Chevrolet Cobalt-Blower Not Working

This 2008 Chevrolet Cobalt Came in with the complaint that the blower did not work. Customer also stated that they had been smelling something “hot” for a “little while”. Removing the HVAC control panel is fairly easy. Open the glove box and pull the right trim piece off of the dash. You may need something … Continue reading “2008 Chevrolet Cobalt-Blower Not Working”

2003 Chevrolet Express Van-No Crank Condition

This 2003 Chevrolet Express 2500 van with the 5.3 liter engine was towed into my shop as a no crank condition (starter does not work). There were two problems found. The IGN A fuse was blown in the underhood fuse box and the starter was no good. The starter had been replaced the day before … Continue reading “2003 Chevrolet Express Van-No Crank Condition”

2011 Chevrolet Impala-Fuel Pump Not Working

This 2011 Chevrolet Impala came in after the fuel pump and fuel pump relay had been replaced and there was still no fuel pressure. I was told by the customer that the computer must be bad and it was brought to me because programming would be needed. Proper testing could have prevented replacing parts that were … Continue reading “2011 Chevrolet Impala-Fuel Pump Not Working”

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”

2002 Chevrolet Suburban-Mode Actuator Cycles Between Vent & Defrost

SDixon: I had an issue with my vehicle back in August. I replaced the battery, upon new battery being installed the delivery mode actuator would cycle between defrost and vent every few seconds. I was going on vacation so had a local mechanic look at it. He informed me that the actuator was bad. I had … Continue reading “2002 Chevrolet Suburban-Mode Actuator Cycles Between Vent & Defrost”

2005 Chevrolet Tahoe – Front & Rear Heat & Air Not Working Correctly

RFulton: Need help with front and rear air for my 2005 Tahoe with dual zone automatic HVAC because it was blowing cold on driver side when temp was turned up all the way. After trying to recalibrate it finally worked, however when you change anything on diver side it gets cooler then heats back up, … Continue reading “2005 Chevrolet Tahoe – Front & Rear Heat & Air Not Working Correctly”

2009 Chevrolet Silverado Driver’s Side Air Stuck On Heat

This 2009 Chevrolet Silverado came in with the complaint that the a/c was blowing out hot air on the driver’s side of the dash.The vent temperature was 140°F and the outside air temperature was 97°F in August in sunny South Carolina. I told the customer that I would not be able to get to it … Continue reading “2009 Chevrolet Silverado Driver’s Side Air Stuck On Heat”