Question about 2004 Ford Crown Victoria

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2004 Interceptor, will replacing the heads fix?

Hi,

2004 Ford Crown Victoria Police Interceptor.....4.6L engine.

I have a misfire in cylinder #1 and spark plug is covered in oil. Are the piston rings fried? Will replacing the heads fix the problem?

Thanks so much.

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  • amtexp71
    amtexp71 Jan 25, 2009

    But the thing is, replacing the Piston Rings will take forever and I don't have the tools. I have to take a chance that the oil getting on the plugs is because of bad valve stem seals in the cylinder heads. This is why I was going to take a chance and just put new heads on it. Because the heads I get should have good valve seals. If the Piston Rings are bad, wouldn't I have many more problem then just some oil getting on a plug? Won't I be able to figure it out when I take the heads off? I mean, if I take the heads off and there is oil on top off the Pistons.....wouldn't that mean the Piston Rings are bad? But is there is no oil on the Pistons, wouldn't that mean the Piston Rings are good?


    And yes, you're right.......I shouldn't skimp on getting the heads machined.

  • amtexp71
    amtexp71 Jan 25, 2009

    Sure thing........no problem. I just gave ya 3 "FixYa's" in like the last 5 minutes. Thanks for answering all those questions.

    I'll just wait til the heads are off to decide on the Piston Rings. Please PRAY that there's no oil on top of those DARN Pistons.

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Sorry to say u need to rebuild or replace the motor

Posted on Nov 08, 2012

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  • Master
  • 1,990 Answers

Make sure to Replace the Rings also and they will be Fine unless the Heads are Warped.

Posted on Jan 25, 2009

  • Travis Humphries
    Travis Humphries Jan 25, 2009

    Right On Man! You hit the Nail on the Head. LOL Literally! Hey Man! Please Rate my Responses accordingly, I could really use the Boost in score! Thanks!

  • Travis Humphries
    Travis Humphries Jan 25, 2009

    Thanks BRO!!!!!!!!!!!!! I Hope it all goes well for ya!!!!!!!!

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