The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.Google+
Car Problem Reports
GMC Safari Internal Faults in Distributor Can Cause Engine Problems
GMC Safari Problem
Visitor, 2003 GMC Safari, 34,000 mi
I've had several distributor problems with the vehicle. The first time it was misfiring, and they said there had been a fire in the distributor. Second time: same thing @ 54,000 miles. This time it fried all of my charging jacks (cigarette lighter type). Replaced again under warranty....but they didn't fix my lighter/chargers.