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horrible knocking sound in engine...

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    #1

    horrible knocking sound in engine...

    ...but thats it.

    no loss of power... no loss in oil pressure. Just one hell of a knocking sound.

    How serious is that?
    2000 Grand Marquis LS: Back in the Panther Life Again.
    Tags: None
    #2
    did u run it out of oil or coolant?

    1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
    2006 Lincoln Town Car Signature. Stock for now
    1989 Ford F-250 4x4 much much more to come, sefi converted so far.
    1986 Toyota pickup with LSC wheels and 225/60/16 tires.
    2008 Hyundai Elantra future Revcon toad
    1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

    please be patient, rebuilding an empire!

    Comment

      #3
      nope... full of both... and outside of the old grimey look right before I changed the oil... looked just fine.

      same w/coolant... clean and green.

      thats why im flustercucked
      2000 Grand Marquis LS: Back in the Panther Life Again.

      Comment

        #4
        keep driving

        1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
        2006 Lincoln Town Car Signature. Stock for now
        1989 Ford F-250 4x4 much much more to come, sefi converted so far.
        1986 Toyota pickup with LSC wheels and 225/60/16 tires.
        2008 Hyundai Elantra future Revcon toad
        1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

        please be patient, rebuilding an empire!

        Comment

          #5
          and the knock?
          2000 Grand Marquis LS: Back in the Panther Life Again.

          Comment

            #6
            does it sound like this? http://www.youtube.com/watch?v=X3Amz2ax6h4


            or is it a tapping/rattle? if it sounds like above your SOL..
            Give a man a fish and he will be fed for a day. Teach a man to fish and he will promptly forget that he once did not know, and proceed to call anyone who asks, a n00b and flame them on the boards for being stupid.

            Comment

              #7
              IIRC, the front accessory pullies can make a pretty good racket. You might try removing the serpentine belt and starting it (don't run it long, of course). If the knocking goes away, you know it is a problem with a pulley or an accessory. Just a thought.

              -Rob
              1996 Police Interceptor-187K miles **Replacement DD found**
              Engine/trans: '03 4.6, underdrives, shorties, 80mm MAF, Custom downpipes, Ported plenum, 70MM T/B, and Dyno Tune. J-modded Y2K 4r70w w/ Marauder TC.
              Misc: ADDCO bars, Big brakes, 17" wheels, '02 steering box, and LXSport console w/ floor shift! :headbang:

              Comment

                #8
                Originally posted by cld783 View Post
                does it sound like this? http://www.youtube.com/watch?v=X3Amz2ax6h4


                or is it a tapping/rattle? if it sounds like above your SOL..
                yep... sounds like im SOL...

                who do I fix that?
                2000 Grand Marquis LS: Back in the Panther Life Again.

                Comment

                  #9
                  get a new engine. Mine has a ticking from lifters.
                  Chris - A 20th Century Man \m/ ^.^ \m/

                  Comment

                    #10
                    well i knew the lifters were going bad... but I didnt think it would eventually lead to this.
                    2000 Grand Marquis LS: Back in the Panther Life Again.

                    Comment

                      #11
                      could be the timing chain tensioner and/or guides.

                      the early style guides are notorious for coming apart and letting the chain slap the cover.
                      2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
                      89 Crown Victoria LX HPP -- SOLD 9/2010
                      88 Grand Marquis LS - The Original -- Totaled 5/2006

                      I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478

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                        #12
                        dont.... think its that...

                        pretty confident its the valve rod knocking..
                        2000 Grand Marquis LS: Back in the Panther Life Again.

                        Comment

                          #13
                          pull the engine out and put new shit in the bottem end!
                          GMNRadio DJ, Podcast Co-Host
                          1984 Ford LTD Crown Victoria - Drag Car.
                          99 Ranger 2.5 - Parts hauler and Pit truck.
                          03 Mustang 3.8 Convertable - Head Gaskets fukered up
                          95 S10 93 Accord

                          Comment

                            #14
                            so... engine pretty much toast?
                            2000 Grand Marquis LS: Back in the Panther Life Again.

                            Comment

                              #15
                              good enough reason too pull it out and put some forged stuff in the bottem along with PI heads and intake!
                              GMNRadio DJ, Podcast Co-Host
                              1984 Ford LTD Crown Victoria - Drag Car.
                              99 Ranger 2.5 - Parts hauler and Pit truck.
                              03 Mustang 3.8 Convertable - Head Gaskets fukered up
                              95 S10 93 Accord

                              Comment

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