Strange noise from under the hood.



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Thread: Strange noise from under the hood.

  1. #1
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    Strange noise from under the hood.

    I just noticed a strange sound thats possibly coming from my tansmission in my 96PGV 3.3L.

    Its not the normal buzzing sound of the solenoids. Its completely random, doesn't make it when i hit a bumb, floor it, or the tranny shifts. The bestway i can describe it as someone draging there fingernail over a metal comb if that makes any sense.

    Any ideas?

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    Are you sure this isn't coming from the drivebelt end of the engine? There is a very common noise that sounds like a bell ringing or crickets chirping. I've seen some debate as to whether it is a bearing going bad or resonance from the belt slipping very slightly side-to-side across, say, the water pump pulley.

    - G
    1998 Grand Voyager @266,000mi, 3.3L FFV V6

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    the problem is its so random, that i can't duplicate it, but when i have my window down it sounds like its coming from the tranny. The acc belt is still in good shape.

    Theres no change in performance when it does it, im just uber paranoid when it comes to the transmission lol

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    Could I be far off and that noise is the engagin/disingaging of the ABS? the sound you describe fits..

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    wll it doesn't just happen when im braking so the abs must be going out if thats the case. Tomorrow i'll go take it out behind base and "purposely engage" the ABS and see if its the same sound

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    My '96 GC with 100,000 on it recently had noise similar to what you describe (rear of block/front of tranny) and was diagnosed with failing front tranny pump, FWIW.

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    I noticed today that my '97 Grand Voyager 3.3 was making a noise similar to what you guys are describing. Mine does it with the van running in drive or reverse with my foot on the brake. Sounds like two pieces of metal grinding. The fluid looks fine and doesn't smell burnt. Any advice would be great.

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    You could also remove the ABS relay or fuse. That would disengage the ABS system if the ABS pump were to be malfunctioning, it would cut power to it. Just to eliminate that as the culprit, unless it is of course.
    2001 Infiniti i30 3.0 DOHC V6: VQ30DE 177,000 miles; 1999 Nissan Altima GLE KA24 168,000 Miles
    1997 Dodge Ram 1500 SLT Laramie 5.9 46RE, 182,000 Miles
    Prev. 97 T&C LXi 184k 3.8, 94 T&C 3.8 156k Miles, 93 GV LE 3.3 123k

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    I get the "comb" noise occasionally ('02 DGC SE 100kmi) - only when in reverse, and then (usually) only with the LF wheel/strut higher than RF. Specifically, up on a small berm or curb, when I retrieve mail from the curbside box, then reverse back to our driveway.

    Not ABS related, far as I have discerned - unless it's the tone wheel rubbing. ABS functions fine...

    -Jim

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