Engine Mechanical problem
1992 Ford Aerostar 6 cyl Front Wheel Drive Automatic 100000 miles
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van hard to start-took the vehicle to the shop to install a new fuel pump drove for 1/2 day went home and the van will not start- what could be the problem

Could be a fuel or spark problem do below to determine which.

Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light.

Fuel pump and Injector/s checks out-start checking the ignition system-power to coil, coil/s itself,distributor pick-up,control module, Cam and Crankshaft sensors.

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time

brazz5099 wrote:

Engine Mechanical problem 1992 Ford Aerostar 6 cyl Front Wheel Drive Automatic 100000 miles ---------------------------------------------------------------- van hard to start-took the vehicle to the shop to install a new fuel pump drove for 1/2 day went home and the van will not start- what could be the problem

I had that same problem, I installed A new Fuel pump and that WAS_NOT the problem the problem was it was not firing, there is a metal ring inside the distributor, or the hub where all the spark plug wires are located. That ring was disfigured(chewed up) which caused the engine not to fire.