Ford » Crown Victoria » 1994 Ford Crown Victoria » Questions

Q&A

Ask Your Question

1994 Ford Crown Victoria

 

Question: loosing fuel pressure when I dont let the car warm up or when I go up hill at 60+ mph

Question

Visitor, Orem, UT, January 03, 2011, 16:14

It was taking 2 or 3 trys to start and it would barely move on a cold start (I had to pump the gas peddle to get it going) unless it warmed up for 5+ mins.I changed the fuel filter and now it starts 1st try and runs a little better on cold starts but when I drive 75mph up a steep long hill(normally the car flys up hill) it sudenly looses power. If I floor it the car lunges and still looses power and speed drops to 45-60mph before I get power back then it takes off. Is it my fuel pump going out or something else? Thank you

4 Answers
Answer It
Flag This

  • Answer #1

    delane 72 garage and body shop January 03, 2011, 17:33
     Master

    ck fuel pressure with a gage

    Reply
    Flag This

  • Answer #2

    Brian Glastetter January 03, 2011, 18:45
    Profile_thumbnail
     Master

    Typically, we do not see Ford fuel pumps doing what you describe- they usually do not start if they are failing. Of course, driving it under a load with a fuel pressure gauge is one of the first things we would do, but I would venture that you are experiencing a lean fuel mixture most probably due to a intermitting failing sensor such as the mass air flow sensor. Do not throw parts at it. Have a shop diagnose it if you do not have the equipment. Guessing usually proves to be more expensive than a proper diagnosis.

    Reply
    Flag This

  • Answer #3

    backyard tech January 03, 2011, 19:18
     Master

    You have a bad fuel pump. If you do manage to check fuel pressure, Make sure you have volume also.

    Reply
    Flag This

  • Answer #4

    DaveJHM January 03, 2011, 21:29
    Profile_thumbnail
     Master

    I agree with b-glaste, but I also think you could have a bleed down problem at times causing poor pressure consistency. We're talking a 1994 unit here, all bets are off when it comes to fuel pump quality in the Trotman - Nasser era...

    I'm thinking to check for an exhaust restriction, perhaps intermittent, also. Do the fuel pressure test first, then check for an exhaust restriction. Best of luck.

    Reply
    Flag This
Answer Ranks

This week's top 10

1 globalhelper 6 csubak30
2 pushrod 7 FREDDY BLUE
3 ziptie12 8 gearhead89
4 ChevyASE 9 ebans777
5 wenyan 10 tdtoolbox