My 2003 crown/vic has 56000 miles.There has been this bumping noise just like a flat tire.This is an lx,we ruled out tires,wheel bearings,there is a little sound in the rear end,but no bumping.The brake pads are fine and installed correctly.
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troubleshootmyvehicle.com > Ford > 4.6L, 5.4L Mar 2, 2011 - Page 1 of 3: How to test a BAD Starter (Ford 4.6L and 5.4L Pick Up and SUV). ... a BAD starter motor on your 4.6L or 5.4L V8 equipped car, pick up or SUV. ...and will turn over the engine; -OR-; The starter motor won't do a thing. ... Crown Victoria ... 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005.
www.2carpros.com/.../question-1997-crown-victoria-lx-cant-turn-on-an... May 26, 2014 - Ok so i put the keys in the car turn the key but seems to me it moves more ... 1997 Ford Crown Victoria • 4.6L V8 RWD Automatic • 99,625 miles ... Keywon't turn off accessories or turn car over and ignition cylinder turns too ...
DID YOU CHECK THE FUEL PUMP SHUTOFF SAFETY SWITCH ON THE LH/DRIVERS SIDE IN THE TRUNK & MAKE SURE IT IS DOWN ,& EVEN IF IT IS SOMETIMES YOU CAN TAKE SOMETHING & PUSH IT UP & THEN PUSH IT BACK DOWN & IT WILL CRANK,& BELOW THAT SWITCH IN THE TRUNK IS A FUEL PUMP DRIVER MODULE ,IT MAY BE BAD,THOSE ARE A COUPLE OF THINGS THAT HAVE WORKED FOR ME ,& THATS PRETTY MUCH ALL I DO IS WORK ON FORDS, & LX CROWN VICS & P71 POLICE CROWN VICS WHERE I AM WORKING, HOPE THAT IT MIGHT HELP YOU FIX IT. SEAN
I just came up with that exact issue in my 2003 with 98K police crown vic. And the last time I had this issue in a 2001 police Crown vic it was the crank shaft position sensor. A $20 part and about 30 mins to put it in. located near the bottom of the engine. I had to un bolt the A/C compressor and push it out of the way a few inches to get to the sensor. If you have about 100K mile on it and its an idled heavy police car, this sensor should be changed out anyway. It can leave you on the road dead and some dealers have a hard time find out whats wrong as the OBD 2 does not see it as a problem when it goes bad or becomes touchy as I think mine is.