This 2005 GMC Sierra came in with the complaint that when the vehicle is started cold, the headlights, dash lights and dome light will flicker or pulsate. As the system runs the problem diminishes but never goes fully away. This is a common complaint on many Cadillac, Chevrolet and GMC full sized trucks and suv’s. … Continue reading “2005 GMC Sierra, Lights Flicker or Pulsate”
This 2002 Chevrolet Suburban came in with the battery light on and the system voltage at 12 volts. In talking with the customer, I found out that the battery light had been coming on and going off for a bout a week. Yesterday the battery went dead while driving. I was pretty sure just from … Continue reading “2002 Chevrolet Suburban, Changing The 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”
This 2002 GMC Sierra came in with charging system complaints that I showed the repair for in an earlier post. Now I want to show how the whole situation could have been avoided if the installer had followed simple instructions. To see that repair please click here. If you recall the owner had installed electric … Continue reading “2002 GMC Sierra, Installing a Fused Battery Lead”
This 2002 GMC Sierra came in with the complaint that the battery had gone dead and that the voltmeter was reading low voltage at times. I opened the hood and the problem was quite evident to me but I decided to do some testing anyways. The following picture shows 14.32 volts at the alternator output … Continue reading “2002 GMC Sierra, Erratic Charging Condition, Battery Goes Dead”