transmission groaning

Discussion in 'Trucks [ Eighteen Wheelers ]' started by dustinbrock, Dec 18, 2014.

  1. dustinbrock

    dustinbrock Road Train Member

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    Hey guys, in my 2006 volvo I have a rtlo16918b (I believe) and when I'm at highway speed and at steady throttle (usually on cruise, not applying throttle or letting off but just steady) it will start to vibrate and groan/growl very loudly. If I let off or apply throttle it stops.

    Once I go back to even throttle it will start growling again, it does not do it all of the time at the exact same speed but very often. Usually between 100km and 105 km. Slowing to 95km it usually doesn't and if it does it isn't as violent.

    My transmission grinds when splitting from low to high as well. When I lift my range selector I can hear the air enguage very weak and slow so I am going to test the air pressure at the transmission as I'm sure they have a regulator but I can only assume it's too late and my aux needs rebuilding but with the growl the tranny has I am wondering if maybe I'm just gonna be buying a reman tranny.

    Additional info, clutch needs replacing as it is pretty worn out and before yall yell at me about improper maintenance, I bought the truck with these problems knowing darn well I would have to address them but it was too good a deal to pass up.

    Thanks in advance for the help.
     
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  3. Jerry12

    Jerry12 Heavy Load Member

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    eh, try some grease on your drive shaft...perhaps, you may notice an inexpensive difference. (always try the least expensive options first.)
     
  4. dustinbrock

    dustinbrock Road Train Member

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    Trucks greased front to back once a week. I work oilfield so the grease gets beat out often.
     
    Jerry12 Thanks this.
  5. me myself and I

    me myself and I Heavy Load Member

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    Have air ride height checked
     
    baha Thanks this.
  6. lester

    lester Midwest's #1 Feed Hauler

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    Yeah check your ride height.
     
  7. KWmech

    KWmech Light Load Member

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    Jun 16, 2012
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    Sounds like ride height problem but it may be too late now if it grinds when you range shift.
     
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