This 2003 Chevrolet Tahoe with a 5.3 liter engine came in with the customer complaint of the reduced power display was on and the vehicle could not be driven more than about 30 mph. Checking codes found a code p1516 stored for Predicted VS. Actual Throttle Position Correlation Error. That is fancy computer talk for … Continue reading “Reduced Power Displayed 2003 Chevrolet Tahoe”
This 1998 Chevrolet Malibu came in with the complaint that the turn signals did not work properly and the horn did not work. Inspecting the turn signals found that the signal was reaching the bulb but it seemed very weak. First place to start is one of the easier bulbs to get to to see … Continue reading “1998 Chevrolet Malibu, Turn Signals and Horn Inop”
This 2001 Chevrolet Impala came in with the complaint of no low beam headlights. The obvious things to check first were the bulbs and the fuses and all were okay. Time to pull the lower dash cover out to access the wiring for the dimmer/combination switch. Remove the screws at the bottom of the cover, … Continue reading “2001 Chevrolet Impala Low Beam Headlights Inop”
This is a story of how little things left unattended and decisions made in haste can lead to huge problems. The customer came into the shop keys in hand, complaining that the ignition would not shut all the way off in her 2005 Chevrolet Impala and she needed it looked at. I asked where the … Continue reading “2005 Chevrolet Impala Ignition Key Will Not Turn All The Way Off”
The customer called and said that their 1998 Chevrolet Astro van only had the high blower working but by the time it showed up a couple of days later the blower had stopped altogether. Simple test for no blower on an older high mileage vehicle, turn the key on, set the blower to high and … Continue reading “1998 Chevrolet Astro Van Only High Blower Speed Works”
This 2001 Chevrolet Impala came in with the complaint that the low beam headlights would not work. I went to the headlight bulb and found power on both terminals of the low beam bulb. This indicates that a ground is missing. After looking at a wiring diagram I determined that there were several possibilities: broken … Continue reading “2001 Chevrolet Impala, No Low Beam Headlights”
This Suburban came in with the complaint that the turn signal fuse blows. The customer could not relate when the fuse would blow and it would not blow when it came in the shop. I first went to the rear and and inspected the wiring there and found no problems. Next I turned my attention … Continue reading “Turn Signal Fuse Blows In 1997 Chevrolet Suburban”
This 2001 Chevrolet Silverado came in the shop with the complaint of no stoplights. First I confirmed that none of the stoplights were working including the CHMSL (center high mounted stop light). After this I went to the underhood fuse box because the manufacturer has made diagnosing the stoplights very easy at this location. By … Continue reading “2001 Chevrolet Silverado With No Stoplights / Brakelights”
A 2005 Chevrolet Malibu came in with no outside turn signals working and the inside indicators were flashing quickly. I know this sounds a little crazy but the first thing to check is codes. Codes B3948, B3949, B3950 and B3951 were stored for possible short to power. With all of these codes I was expecting … Continue reading “2005 Chevrolet Malibu Turn Signals Inop”
1996 Chevrolet 1500 Truck came in with an intermittent no run condition. When the no run condition would occur the dash warning lights would not come on either. After cycling the ignition switch several times the lights would come on and then the engine would crank and start. I checked basic battery and cables for … Continue reading “1996 Chevrolet 1500 Truck Ignition Switch”