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 Sonoma Internal Faults in Distributor Can Cause Engine Problems
GMC Sonoma Problem
Engines Affected: 2.2L 4 Cylinder, 2.5L 4 Cylinder, 4 Cylinder, 4.3L V6
Average Mileage: 141,800 mi (100,000 mi - 202,000 mi)
Visitor, 2001 GMC Sonoma, 167,000 mi
Distributor started having a rattling noise. I replaced the rotor and top, didn't help. Also generated lots of ignition noise in the radio. Local dealer repaired.
Had to replace distributor
engine runs rough and has a lose of power.
Visitor, 2002 GMC Sonoma, 4 Cylinder, 100,000 mi
Being from Western New York, My problem was caused by excessive corrosion in and around the distributor packs. This caused short condition which actually blew the fuel pump fuse. This must be a common problem, because it had happened to my previous truck. 1994 Chevy S10, same engine.