One problem related to crankcase (pcv) has been reported for the 2002 Chevrolet Suburban. The most recently reported issues are listed below.
Have 2002 Chevrolet Suburban 1500 4wd 5. 3 engine a/t. Was driving 45 mph when vehicle suddenly stalled out & lost all steering/brakes. 131,589 miles on odometer at time. Managed to coast vehicle onto shoulder, waited 2 minutes, started vehicle again, pulled out into busy traffic just to make it 2 blocks before stall out again. Repeated this process several more times before I found a gas station. Suspecting water in gas, added 1 bottle of gas line anti-freeze. Drove rest of way home without incident. Replaced fuel filter, pcv valve, air filter, spark plugs, and cleaned throttle body just to have stall out the very next day. No codes are displayed in message center in dash board. Stalls out randomly without a pattern. Wait 1-2 minutes then will start again.