I've got a '94 MaxiWagon, 360 auto. ~225k miles. The fan will usually start fine when cold, but I have problems after it's warmed up. Once the van is warmed up (say, after driving it for 15-20 minutes), I have re-start issues.
Basically, I have to crank it 6-7 times (for a decent period) to get it to start. It's a progressive thing...first crank nothing, by the 3rd it's trying to hit, by the 5th it's almost started, and on the 6th crank or so...it fires up.
I thought it might be the fuel pump, given the age and mileage on the van. I had a buddy swing by with a fuel pressure gauge, and we checked it out. Upon turning on the key, the pressure spikes to about 45psi, then drops back down to 0. Upon cranking, the pressure goes back up to ~45 psi. When running, it stays at ~45psi. Upon shutting the van off, though, the pressure drops -immediately- to 0.
Any ideas what this may be? Would a leaky injector be able to drop the fuel pressure almost instantly? Would that somehow be the fuel pump, even though 45psi seems to be in line with the manual? Fuel pressure regulator?
I'd love to get some input from those who know more about it than I do!
