Took to different machanic, and they figured it out. It is now running great
The fuel pressure regulator failed. It was feeding about twice as much gas as it
Fuel pump pressure is 85 pounds and the regulator should reduce it to 46 pounds.
| x-no-archive: yes
| My 1990 Aerostar (the type with the larger engine) was running great, Nice and
| smooth, good MPG, peppy as they get. Has been well maintained.
| Then it needed an new alternator. Still ran fine other than the things that a
| alternators cause.
| I had the alternator replaced.
| It has run like %$#%# since then. The check engine light comes on after 5
| The engine sounds OK for maybe 2 seconds and then makes sort of a lunging
| it is revving up and letting off. Over and over. It sounds like a engine
would if a
| person was pressing and letting up on the gas pedal.
| It hesitates when I take off from a stop. It is more likely to die if I take
| The car repair guy has spent hours trying to figure it out. He and his guys
| diagnostics. Found nothing other than an oxygen sensor. Had that replaced.
| He sounds quite frustrated. I think he has done his best.
| Don't think he want to ever see the thing again.
| Last we spoke, he suggested that I take it over to a Ford dealership to see
| can figure out.
| Am hesitant about that because of previous experiences with dealerships.
| Other info:
| I went over a big bump.
| The Check Engine light remains off after I stop the van for a short while, but
| back quicker when I start it up again.
| It passed Washington State emissions test, running as it is. Check Engine
| I asked if it could be a vacuum leak. Mechanic said he thought not.
| I really need to get this thing running properly. Don't want to throw more
| it unless is warranted.