03 P71 crown vic stumbles / dies off on hard acceleration but is ok with soft acceleration

Asked by Jun 13, 2012 at 04:15 PM about the 2003 Ford Crown Victoria Police Interceptor

Question type: Maintenance & Repair

I am about to purchase an 03 PI from a family member. It Runs great untill u put u put ur foot into it. soft
acceleration its ok. hard acceleration is bogs down. fuel filter changed.. MAF? TIA!

8 Answers

3,185

fuel pump might be on its way out.

4 people found this helpful.
1,585

You may have a vacuum leak aswell. It could be fuel pump but this will make it hunt and drive like a pig. Best of diagnoses reader see what sensors a.d switches are doing!

1 people found this helpful.

Any suggestions on a diagnosis reader? to say im on a budget would be generous :)

1 people found this helpful.

fuel pressure regulator changed. same prob, Is there a port on the fuel rail to check pressure from?

2 people found this helpful.
1,585

You tee into the fuel line. But is it blowing black smoke mAnifold may be cracked.

no smoke. 63kmiles runs smooth. with soft acceleration it will get up to 70mph but it wont go faster. makes me feel like its not getting enough fuel... maybe transmission related? i love this car but hope its not gonna cost a fortune to remedy.

10

u mite wanna trie too rebilled da ingen.

30

Hey. I just recently purchased a 2000 crown Victoria police interceptor with 136,000 miles on it. Recently, it stumbles when it goes to fifty.

3 people found this helpful.

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