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what is causing my rumble?

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  • #46
    Originally posted by D.R.
    Sounds like the motor is fine, take off the muffler (it's only two band clamps) and see if that helps.
    I actually dropped the entire exhaust (header-back) a month or so ago and had the same problem. :sosad:
    Bry

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    • #47
      my henna developed the same problem last time i drove it a few months ago. low funds made me park it for a minute but i finally got under it with it running and noticed a gap between my exhaust manifold and the head....the exhaust manifold gaskets were even fluttering.
      so now i gotta get it runnin so i can make the tndubs.com g2g this weekend but, i think i stud or two might be broken and stuck in there :(
      www.tndubs.com

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      • #48
        Nothing like bumping an 8 year old thread but I'm having the same issue. Anyone have this same problem where the resolution wasn't an exhaust leak? I have similar case of not using the car for an extended period and funky idle with good timing, ignition and fuel... In case anyone stumbles on this with the same issue, my next step is to check for a leaking fuel injector, then fpr. Once I've removed the injectors, if theres no obvious buildup or grime on them, how can I check if they function correctly with them out of the car?

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        • #49
          Last bump with solution: Turns out it was a fuel delivery & vacuum issue. If anyone encounters a similar problem check your injectors and fuel filter

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          • #50
            Last bump with solution: Turns out it was a fuel delivery & vacuum issue. If anyone encounters a similar problem check your injectors and fuel filter. My injectors were Also firing but one had a little leak

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            • #51
              In reply to a PM, I R/R the fuel line & replaced all four injectors also found a few questionable vacuum lines so replaced all of those and engine seems to run very smoothly now.

              Essentially a leaky fuel injector and/or deteriorating vacuum lines were causing the poor idle. If you check out any fuel injector shop, they should be able to flow test for you and let you know if they are within spec.

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