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”

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”

1997 Chevrolet S10 Blazer, Codes P0102 and P0340

This 1997 Chevrolet S10 Blazer cam in with the service engine soon light on  and a complaint of low power. Checked data with Tech 2 scan tool and found codes P0102 MAF sensor circuit low frequency and P0340 cam position sensor circuit. I checked CMP retard and found it fixed at     -60 degrees. … Continue reading “1997 Chevrolet S10 Blazer, Codes P0102 and P0340”