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Thread: Slight vibration

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    Expert Lawrence's Avatar
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    Slight vibration

    Hi guys. I'm getting a slight vibration from the Patrol when accelerating, mostly at lower revs. I suspect it's the u-joints, but weirdly enough I feel it in the gas pedal. Going to check the joints later when I get home. I am also suspicious about the transmission brake as some weeks ago, I pulled it up in the traffic and got nothing. Seems the cable broke. Maybe it's rubbing on the driveshaft. Any ideas?
    1989 Nissan Patrol DX with the td42 (inline pump). No mods yet except black US 16x8 rims with 265 75 16 Ats

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    Patrol God threedogs's Avatar
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    Might sound silly but check for loose wheels
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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    Expert Lawrence's Avatar
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    Quote Originally Posted by threedogs View Post
    Might sound silly but check for loose wheels
    Thanks threedogs, but no loose wheels seen.
    1989 Nissan Patrol DX with the td42 (inline pump). No mods yet except black US 16x8 rims with 265 75 16 Ats

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    Patrol God threedogs's Avatar
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    have you jacked it up and checked,
    you may have knocked a weight off
    the tail shaft
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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    Expert Lawrence's Avatar
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    Quote Originally Posted by threedogs View Post
    have you jacked it up and checked,
    you may have knocked a weight off
    the tail shaft
    I havenpt jacked it up yet. I did check the shaft for play by the u joints. How do I check it for weights? If any are missing, how do I get them on a rebalance the shaft?
    1989 Nissan Patrol DX with the td42 (inline pump). No mods yet except black US 16x8 rims with 265 75 16 Ats

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    Legendary dom14's Avatar
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    Quote Originally Posted by Lawrence View Post
    Hi guys. I'm getting a slight vibration from the Patrol when accelerating, mostly at lower revs. I suspect it's the u-joints, but weirdly enough I feel it in the gas pedal. Going to check the joints later when I get home. I am also suspicious about the transmission brake as some weeks ago, I pulled it up in the traffic and got nothing. Seems the cable broke. Maybe it's rubbing on the driveshaft. Any ideas?
    Is it a vibration or rather a kinda grunting you here on low revs around 1500rpm-1800rpm range(petrol engine) on 1st or 2nd gear during take off? Do you feel like the the "vibration" comes from clutch/transmission area(assuming it's manual transmission).
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    Expert Lawrence's Avatar
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    Quote Originally Posted by dom14 View Post
    Is it a vibration or rather a kinda grunting you here on low revs around 1500rpm-1800rpm range(petrol engine) on 1st or 2nd gear during take off? Do you feel like the the "vibration" comes from clutch/transmission area(assuming it's manual transmission).
    I feel the vibration in the body of the car mostly at lower revs when accelerating. On the highway I am also feeling it in 4th.
    1989 Nissan Patrol DX with the td42 (inline pump). No mods yet except black US 16x8 rims with 265 75 16 Ats

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    Legendary dom14's Avatar
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    Quote Originally Posted by Lawrence View Post
    I feel the vibration in the body of the car mostly at lower revs when accelerating. On the highway I am also feeling it in 4th.
    Ok, that may be or may not be the same thing.
    The low rev grunting of the gearbox is fairly common in GQ Patrols.
    I experience that in gears up to the third, though I can't remember hearing it on fourth and above though.
    If the car body vibrates with that thing, then you may have something different related to pretty much anything in the
    drive train, as well as suspension issues.
    RB30, some 2-3 inch lift auxiliary LPG tanks
    Few more mods on the way
    http://www.worldwildlife.org/species/tiger
    https://www.panthera.org/
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    Expert Lawrence's Avatar
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    Quote Originally Posted by dom14 View Post
    Ok, that may be or may not be the same thing.
    The low rev grunting of the gearbox is fairly common in GQ Patrols.
    I experience that in gears up to the third, though I can't remember hearing it on fourth and above though.
    If the car body vibrates with that thing, then you may have something different related to pretty much anything in the
    drive train, as well as suspension issues.
    After driving the vehicle today, I realized that the vibrations were mostly felt at high revs. They seemed to have been getting worse. anyway, checked underneath this evening. Found that the bolts connecting the driveshaft to the rear diff were loose enough to be turned by hand. Going to tighten them up in a while.
    1989 Nissan Patrol DX with the td42 (inline pump). No mods yet except black US 16x8 rims with 265 75 16 Ats

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    Check that one or both your front hubs are not locked. I can get a very similar and slight vibe if i am still running in 4wd even when i 2wd
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