This alternator was removed from a 2002 Chevrolet Suburban. To replace the brushes in this alternator the rear plastic cover first has to be removed. There are several slots around the exterior surface of the black plastic cover. Using a small screwdriver inserted into the slot, pry out on the lower end to release the … Continue reading “Replacing Worn Brushes In A Delphi Alternator”
This 2004 Chevrolet Trailblazer came in with the complaint that neither one of the low beam headlights would work. They both stopped working at the same time. The customer had already paid another shop to have the headlight and dimmer switches replaced. After several days of trying hit and miss diagnosis she called me. I told … Continue reading “2004 Chevrolet Trailblazer, No Low Beam Headlights”
This 2003 Chevrolet Trailblazer had a loud ticking noise coming from the rear of the vehicle on the passenger side. In the last post I showed how to remove the trim panels and locate the faulty actuator assembly. Please click here to see that part of this repair. Once the trim panels were removed it … Continue reading “2003 Chevrolet Trailblazer, Changing the Rear Mode Actuator”
This 2003 Chevrolet Trailblazer came in with the complaint that there was a loud ticking sound coming from the rear of the vehicle. From experience I knew that one of the rear actuators was making the clicking or ticking sound. I checked the rear controls and found that adjusting the mode position would make the … Continue reading “2003 Chevrolet Trailblazer, Clicking Sound From Rear HVAC Unit”
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 1996 Chevrolet S10 came in with the complaint that the heater/ air conditioner air only blows out of the defroster vents regardless of where it is commanded. It is actually a pretty simple problem and strangely enough it is not an electrical problem. The most common place for failure is in the under hood … Continue reading “1996 Chevrolet S10, Air Blows Out Of The Defroster Only”
This 1999 S10 Blazer came in with the complaint that the engine would run poorly sometimes. The customer unfortunately could not provide a better description of the issue. Luckily there were some clear codes stored in the PCM memory, P0118 and P1115 Code P0118 was stored due to a high voltage signal from the coolant … Continue reading “1999 Chevrolet S10 Blazer, Runs Poorly Sometimes”
This 2004 GMC Envoy came in with multiple electrical complaints. The main complaint was that it had to jumped started any time the engine was shut off. A quick check found that the battery cables were very loose. After removing the cable ends for inspection an excess amount of corrosion was found. From the way … Continue reading “2004 GMC Envoy No Crank Condition”
This 2004 Chevrolet Trailblazer came in with a fairly loud roaring/whining noise coming from under the hood while the engine was running. I was pretty sure the idler pulley bearing was making the noise so I loosened the tensioner assembly and took the belt off. It took a 3/8 square drive adapter to connect to … Continue reading “2004 Chevrolet Trailblazer, Bearing Noise Under The Hood”