Working on a 2008 Crown Vic police cruiser w/ a 4.6L, VIN #2FAFP71V68X127296. Has been in for runnability issues, only codes ever set were inactive (PO109/MAP or BARO pressure circuit intermittent & PO452/EVAP system pressure sensor low). Replaced fuel pump on 08/27/10, battery on 12/27/10 and fuel injector sensor on 04/08/11. The local Ford dealer had it for 3 weeks and never could get it to act up or set a code. Drove it 3 miles back from the dealer on Monda and bogged down 4 times (never shut off) and backfired once when I kept the gas pedal down. Drove it 2 miles to post office Tuesday and bogged down 3 times but hasn't happened since. Have driven it home 80 miles round-trip the past two nights and is running fine. Running out of ideas and hope you guys can help.
Thursday, July 14th, 2011 AT 6:04 PM