1991 3/4 ton 350, 134k new distributor(prev. Ownew) coil, alt, plugs, fuel filter. Always starts fine, runs a bit sluggish until warms up, no stalling. After driving 20-30 min and shifting to reverse to back up, always stalls, or if I leave in drive and turn wheel it stalls. Always starts right up again. If I let it sit a few minutes, no stalling even with load. Has mechanics stumped. Occasionally will miss(not stall)after driving for 45 min. Also, engine seems to run about 75% efficiency, occasionally will run amazing, only for a day or so. No trouble codes at all. Vacuum good, idle control valve, neutral switch good. Egr seems to work fine. Tranny completely rebuilt w/new sensors, had problem before tranny work also. Thanks, Tim
have the same problem?
Tuesday, March 13th, 2007 AT 11:44 AM