car makes loud strange noise feels like vibration under car goes away sometimes when i step on gas cant find where it comes from sounds like pump for fuel or oil pressure i think happens even if car is cold/hot car has under95000miles bought it brand new never heard it before until around november 2009 doesnt affect performance
what is strange noise on 2000 Ford Crown Victoria
Had the same problem after letting the oil level get low in my 99 Crown Vic. Ford shop told me it could be the oil pump. Suggest taking it to a repair shop as the oil pump removal on the Crown Vic looks pretty intense. Involves removing both valve covers, timing chain, cooling pump, etc...