Older Chevy and GMC C/K Series (20+ years) General Discussion

29 messages, Last post on Jun 09, 2009 at 8:02 AM

What is this discussion about? GMC Sierra 3500, Truck

#28 of 29 1986 Chevrolet truck, 350 engine - Acceleration Dead Spot by warren73078 Jun 09, 2009 (8:02 am)

#29 of 29 1986 Chevrolet truck, 350 engine - Acceleration Dead Spot by warren73078 Jun 09, 2009 (8:02 am)
1986 Chevrolet truck, 350 engine, ¾ ton, 4 speed manual – bought the truck recently, after replacing carburetor, distributor, cap, rotor, wires, vacuum hoses, radiator, thermostat, also pulled emission controls off. I hauled a 27’ 5th wheel to the lake (80 miles), no problems and ran and pulled good, on the way back it developed a dead spot in acceleration between acceleration and de-acceleration. The exhaust smells gaseous. Checked all the vacuum hoses, connections, etc., adjusted timing. What now? Warren