While trying to accelerate the van sputters and acts like its trying to stall out, the only way i found to counter-act the problem is to floor it kinda a go or blow thing i replaced the distributor and fuel filter whatvelse coukd be the cause of it?
This sounds like the fuel pressure is no longer sufficient. The biggest cause of this would be a faulty fuel pump. A fuel pressure test can be performed ahead of time or just replace the fuel pump if you are feeling lucky. The fuel pressure needs to be between 9 – 13 psi.
DIAGNOSIS & TESTING
FUEL PUMP FLOW TEST
- Relieve fuel pump pressure, then disconnect fuel feed line and install a suitable hose on line. Place other end of hose into suitable container
- Apply battery voltage to fuel pump test terminal.
- Fuel pump should supply 1/2 pint or more within 15 seconds.
- If flow is below minimum, check for fuel restriction. If no restrictions are noted, check pump pressure.