With no engine codes it is going to be a little hard to figure out. When this happens, if you place the truck in neutral and rev the engine, does it run smoothly? I would put me a direct reading fuel gauge inline of the fuel system and see if it is loosing fuel when this happens. With the ignition and fuel completly computer controlled, it is either seeing a bad indication from a map sensor, or MAF sensor and adjusting the mixture wrongly. This should be caught by a code. If the crank or cam sensor is sending a bad signal it can mess with the injector operation or ignition.
Have you checked you plugs for fouling? Some of the Chevy had hard plastic tubing running the fuel in the intake, and when those got old they cracked allowing fuel to run into the intake. Maybe it is collecting as the engine warms up and then running rich. When you brake it might run into the cylinders. Just guessing here.[/Quote:e04c8eb722]
We have used a hand held computer/scanner and it read no problems found. Could this possibly be the torque converter? And is the transmission electronic. It does have a push button 4 wheel drive.
Sunday, August 13th, 2006 AT 9:10 PM