changed fuel filter

Asked by Jun 25, 2013 at 06:28 PM about the 2006 Ford Crown Victoria Police Interceptor

Question type: Maintenance & Repair

runs good if I accelerate slowly.. bogs out otherwise

4 Answers

check the vacuum connection to the fuel pressure regulator...hose is cracked or has fallen off~

2 of 2 people found this helpful.
98,385

Ditto with judge. Have you checked the fuel pressure and delivery rate?

1 of 1 people found this helpful.
25,315

You didn't mention a "Check Engine" light. Is it on? A disconnected vacuum hose on the regulator would cause the fuel pressure to rise (low vacuum=high load=high fuel pressure requirement). I would want to look at the data stream. Particularly at the Long term Fuel Trim (both banks) and the Mass Airflow Sensor (MAF) readings. Could be a fuel pump problem but not likely a regulator concern. The Fuel Pressure Regulator on this vehicle also measures the fuel pressure and temperature. A good scan tool will tell you what you need to diagnose this one. You can compare the fuel pressure reading to the fuel pump duty cycle to see if the pump's doing it's thing. (P.S. - I see "dusted" MAF sensors all the time in our fleet of Police Interceptors. I don't try to clean them anymore - I just change it out if it's bad) I've experienced one other concern with this one and hopefully, it's not your concern too - the engine harness from the processor to the engine can have a break in the 5 volt reference wire just behind the left valve cover. I've seen a couple of these now. Not many, thankfully.

2 of 2 people found this helpful.

Check fuel pressure. Should be 35-40 psi under most driving conditions. These are returnless systems; as such they do not have a fuel pressure regulator. There is a fuel pressure sensor, which provides data the PCM uses to regulate fuel pump voltage through a fuel pump driver module. Chances are, you are getting a P0191 / P0148 and have low pressure. I'd check the fuel pump.

Your Answer

Crown Victoria

Looking for a Used Crown Victoria in your area?

CarGurus has 1,218 nationwide Crown Victoria listings starting at $1,995.

ZIP:

Ford Crown Victoria Experts

  • #1
    Tracy Hooks
    Reputation
    1,830
  • #2
    Tom Demyan
    Reputation
    1,040
  • #3
    tennisshoes
    Reputation
    750
View All

Related Models For Sale

Used Mercury Grand Marquis
31 Great Deals out of 1,745 listings starting at $1,700
Used Dodge Charger
472 Great Deals out of 27,625 listings starting at $1,650
Used Lincoln Town Car
37 Great Deals out of 1,776 listings starting at $1,495
Used Ford Mustang
761 Great Deals out of 42,755 listings starting at $1,300
Used Chevrolet Impala
591 Great Deals out of 34,660 listings starting at $1,000
Used Ford Taurus
252 Great Deals out of 17,902 listings starting at $1,499
Used Ford F-150
2,229 Great Deals out of 181,368 listings starting at $1,500
Used Ford Explorer
812 Great Deals out of 62,844 listings starting at $1,495
Used Chevrolet Tahoe
625 Great Deals out of 36,241 listings starting at $1,800
Used Chrysler 300
361 Great Deals out of 16,733 listings starting at $1,000
Used Honda Accord
1,023 Great Deals out of 62,742 listings starting at $999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.