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Please help

Tiny
NVMAN28
  • MEMBER
  • 2005 FORD CROWN VICTORIA
  • V8
  • FWD
  • AUTOMATIC
  • 73,000 MILES
I have a 2005 ford crown victoria and when I start it up or stop and idel it surges****** and recently its gettin worse. On occasion when im drivin I will spell gas also. What might cause this?
Saturday, February 19th, 2011 AT 7:50 PM

2 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
If its spilling gas have to locate the area of the leak and fix as needed 1st
check for vacuum leaks too
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Sunday, February 20th, 2011 AT 12:15 AM
Tiny
03P71TAXI65
  • MEMBER
  • 4 POSTS
Check the fuel rail pressure, should be around 40-60 psi. If the pressure is significantly lower, then replace the fuel filter. If that doesn't increase the pressure you may have a defective fuel pump. If the fuel rail pressure is okay, then I would check every sensor that adjusts the air/fuel ratio. Instead of wasting money replacing sensor after sensor, it might be wise to invest in a OBD II code reader, one that displays graphs. This tool allows you to monitor the sensors on the vehicle and see which ones aren't outputting in a certain range. I would guess either the MAF sensor or an Oxygen sensor.
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Thursday, March 17th, 2011 AT 8:09 AM

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