[socalrob]

My 2001 8.1L 2500 Suburban LT stalls / dies with no warning while driving under light acceleration, coast downs, maybe hard acceleration (not sure). Just prior to stalling it is running perfect. After stall it is hard to start. May take 4 or 5 cranks, or sometimes takes as long as 20 minutes. I normally try shifting between park and nuetral to start. Have loosened gas cap when it won't start but cannot detect any vacuum. Does not seem to help/hurt restart. This has happened on freeway, at stoplights, in intersections making turns. In hot weather and in cold (well, cool, I do live in LA). A few times after a normal shutoff, hours later the truck is hard to start in same manner. I have called AAA a couple of times only to get it started when the tow arrives. When it does start, it normally runs perfect. A few times the engine service light stays on for a few hours.

This has happened maybe 30 times in 9 months. Have had it to the dealer twice. First time dealer talked me into air filter, gas filter, injector cleaner. Made no difference. Truck had about 25,000 miles at the time. Second time dealer kept it a few days, supposedly drove it some miles, never saw the fault. My gut feeling says its electrical, runs to good right before and after problem.

Truck no has 33K miles. Am at wits end, wife isn't comfortable driving it. My personal mechanic (I have some work trucks) says to give it back to the dealer as a lemon. Does anyone have any ideas? I like the truck, my 3rd Sub., still have No. 1 (89 2500 4x4 w/ 200k miles). Please help. Rob.