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 Chevrolet Colorado Blower Inop All Speeds

This 2008 Chevrolet Colorado came in with the complaint that the blower would work sometimes however the condition had worsened and now it did not work at all. Up until now I have always found two common problems with the blower systems on these  Chevrolet Colorado, GMC Canyon and Isuzu I Series trucks. If the … Continue reading “2008 Chevrolet Colorado Blower Inop All Speeds”

1995 Chevrolet S10 Pickup, Rear Lights Go Out

This 1995 Chevrolet S10 pickup came in with the complaint that the park lights would work until the brakes were applied or the turn signals were switched on. In reality none of the rear lights were working as they should. It all sounded like a bad ground to me so I wanted to start by … Continue reading “1995 Chevrolet S10 Pickup, Rear Lights Go Out”

1995 Chevrolet S10 Erratic Stop , Tail and Turn Signal Lights

This 1995 Chevrolet S10 pickup came in with the complaint that rear lights were not working properly. The park lights would work but as soon as the turn signals or stoplights were turned on all of the rear lights would go out.  I had a pretty good idea that there was faulty ground issue and … Continue reading “1995 Chevrolet S10 Erratic Stop , Tail and Turn Signal Lights”

Replacing Worn Brushes In A Delphi Alternator

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”

Blower Motor Systems For GM Manufactured Trucks, SUV’s and Vans 1995-2012

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”

1996 Chevrolet S10, Air Blows Out Of The Defroster Only

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”

1999 Chevrolet S10 Blazer, Runs Poorly Sometimes

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”

1995 Chevrolet S10 Pickup, No Dash Lights

This 1995 Chevrolet S10 came in with the complaint that the dash illumination lights do not work. The customer drives a good bit at night and does not want to take a chance on getting a speeding ticket. A quick checked showed that the tail and license plate lights came on, so I knew that … Continue reading “1995 Chevrolet S10 Pickup, No Dash Lights”

2005 Chevrolet Colorado, Blower Only Works On High Speed

This 2005 Chevrolet Colorado came in with the complaint that the blower only works on the high speed. None of the other speeds work. This is a very common problem and easy to fix. It is the same repair on Colorado’s and GMC Canyons. The blower resistor is located under the passenger side of the … Continue reading “2005 Chevrolet Colorado, Blower Only Works On High Speed”