Hi mike rooney. Welcome to the forum. When the problem occurs, have you checked for spark? If it's still there, and it appears to be fuel-related, suspect the pickup screen inside the fuel tank.
Your description sounds like exactly what happened to my '88 Grand Caravan a few years ago. Took me four hours to nurse it through stop-and-go traffic in Minneapolis, then it ran fine at highway speeds for the next three hours. Died as soon as I let off the gas to leave the main highway. The strange thing was the harder I accelerated, the beter it ran. It stalled consistantly when letting off the gas.
Without going into a lot of detail unless you're interested, I figured out months later that the highest volume of fuel is pumped when coasting, (that's not the same as the volume going into the engine). Most of that fuel goes right back to the tank. Fuel volume slows down when cruising or accelerating. The lower volume can get through the collapsed pickup screen. The higher volume can't so the fuel pressure goes down as a result and the engine starves for fuel. You'll need to watch fuel pressure with a gauge as you drive to see what is happening to pressure when the problem ocurs.
Monday, April 26th, 2010 AT 11:13 AM