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    Thread: Axle ping

    1. #1
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      Axle ping

      I've heard of axle ping, but what exactly is it and how would I know if I have it? I know that iPD amount other places sells special axle bolts for it should you verify that you have it...
      2004 S60 2.5T - Stock for now...

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    3. #2
      Senior Member ZZZZZZZ's Avatar
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      I've never noticed whatever they explain, but you can get XC90 axle bolts and cones from a pick n pull. Apparently that fizes it. FAR cheaper solution.
      "The Real IPD" - ZZZZZZZ's thread
      2007 Passion Red/Gobi VRgt; 2005 Silver/Beige Leather S60 2.5T AWD; 2002 Silver/Off black leather V70XC
      Past: 1999 Tropic Blue/Green/Oak leather V70 (NAa); Mom traded 1975 Maroon/Maroon leather 164E

    4. #3
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      Here’s ipd’s take on it, but I agree with Zzzzzzz - go with XC90 axle bolts. I don’t know that I’d trust used, though - they’re under a fair amount of stress and the threads do stretch over time so they may not eliminate the sound. Unless you get lucky at the jy and see evidence that the bolts are new, like a nice shiny hub, I’d go with new. But it certainly would be a cheaper start with little downside to try ones from a jy.

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      Senior Member Wayne T5's Avatar
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      I've had axle ping on the two P2R's I've owned and on the P3 XC70 I just bought. It's really just a clicking sound you can hear from the front as the driveline loads and unloads. On my P2R's I got the anti ping bolts which fixed the issue and on the newer XC70 it was a matter of re-torquing the axle bolts. I could tell that one of the axles was replaced at some point and apparently it was not torqued correctly. That removed probably 99% of the noise.
      Past: '94 854, '99 S70 T5 SE, '99 S70 GLT, '04 S60R M, '12 S60 T5, '13 S60 T5, '15 S60 RD, '05 V70R GT
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      Whoa, like when you load the drivetrain it feels like it takes a millisecond for the power to get to the wheels and it like, catches kind of? I usually just go easy when putting power on, I didn't know there was a fix!!

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      Me: 2007 VR gt Slicktop Titanium Grey/Nordkap Wife: 2015 XC60 T6 AWD Ocean Race
      Past: 2006 V70 2.5T Willow Green/Oak, 2005 S60 2.5T Silver/Black, 1991 745 White auto, 1982 244 Silver 4spd w/od

    8. #6
      Senior Member Wayne T5's Avatar
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      Quote Originally Posted by tabormeister View Post
      Whoa, like when you load the drivetrain it feels like it takes a millisecond for the power to get to the wheels and it like, catches kind of? I usually just go easy when putting power on, I didn't know there was a fix!!

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      That's not that. It's just a slight clicking when putting the car in reverse or in drive.
      Past: '94 854, '99 S70 T5 SE, '99 S70 GLT, '04 S60R M, '12 S60 T5, '13 S60 T5, '15 S60 RD, '05 V70R GT
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    9. #7
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      Right, sort of like the sound of a torque wrench click.
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    10. #8
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      Quote Originally Posted by tabormeister View Post
      Whoa, like when you load the drivetrain it feels like it takes a millisecond for the power to get to the wheels and it like, catches kind of? I usually just go easy when putting power on, I didn't know there was a fix!!

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      I get that samething too.

      But my prompt for this thread is that I get a definite sound upon unloading, not so much when loading. I can even hear it at highway speeds. But I get it at low speed as well. I don't think it's bad mounts. Definitely drivetrain...

      If XC bolts are cheaper, what about just getting brand new XC bolts with cones? Should still be cheaper than iPD I'd think...

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    11. #9
      Senior Member Wayne T5's Avatar
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      I think I read somewhere that Volvo no longer produces the bolts with the rubber cones.
      Past: '94 854, '99 S70 T5 SE, '99 S70 GLT, '04 S60R M, '12 S60 T5, '13 S60 T5, '15 S60 RD, '05 V70R GT
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    12. #10
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      Quote Originally Posted by Phixion View Post
      I get that samething too.

      But my prompt for this thread is that I get a definite sound upon unloading, not so much when loading. I can even hear it at highway speeds. But I get it at low speed as well. I don't think it's bad mounts. Definitely drivetrain...

      If XC bolts are cheaper, what about just getting brand new XC bolts with cones? Should still be cheaper than iPD I'd think...

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      I had that noise also. I thought axle ping but knowing that no harm is done by ignoring it,I let it go. The 2nd time I replaced my LCA's with originals, it was completely gone.Both times I did the control arms,I used a torque wrench on the axle bolts.

    13. #11
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      Quote Originally Posted by chefricky View Post
      I had that noise also. I thought axle ping but knowing that no harm is done by ignoring it,I let it go. The 2nd time I replaced my LCA's with originals, it was completely gone.Both times I did the control arms,I used a torque wrench on the axle bolts.
      Hmm... I am on OEM replacement LCAs that I changed out almost exactly a year ago, and used brand new axle bolts as well with everything torqued down to spec with a torque wrench. I'm pretty anal when it comes to that part, lol. I do have a set of new bolts though that I could always out on and try out. I mean never hurts, right? Thanks for this idea Rick!

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    14. #12
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      My car definitely has that metallic torque-wrench style “ping” when you shift into drive or reverse, nice to know it’s most likely this issue.

      Phixion, I’ll be interested to see if you eliminate the sound with some new bolts, I can’t see how it would hurt to put new ones in on my car if it solves the noise.

    15. #13
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      Definitely putting this on the list

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      Me: 2007 VR gt Slicktop Titanium Grey/Nordkap Wife: 2015 XC60 T6 AWD Ocean Race
      Past: 2006 V70 2.5T Willow Green/Oak, 2005 S60 2.5T Silver/Black, 1991 745 White auto, 1982 244 Silver 4spd w/od

    16. #14
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      Quote Originally Posted by Phixion View Post
      Hmm... I am on OEM replacement LCAs that I changed out almost exactly a year ago, and used brand new axle bolts as well with everything torqued down to spec with a torque wrench. I'm pretty anal when it comes to that part, lol. I do have a set of new bolts though that I could always out on and try out. I mean never hurts, right? Thanks for this idea Rick!

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      I didn't replace the horizontal bolts because you have to unbolt the motor mounts and jack up the engine. I did replace the vertical bolts. I don't think it will solve your issue though Matt. Take a close look at the rear bushings with the front end off of the ground. The rubber tends to separate from the cup they are pressed into. What kind of OEM LCA's are you using? I did a lot of homework on this and the general opinion is they are all no good. The only good ones are original Volvo.Pretty sure your control arms are made of alumininum. Power flex poly bushings are available for them and they won't fail. But it costs more than buying originals.

    17. #15
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      I have seen the poly flex bushings, always a consideration. I used the Lemforder LCAs matched to Lemforder ball joints and was actually able to replace 3 of the 4 horizontal bolts as one of them will never come out without raising up the motor, but the other bolt on that same side can be done with some finagling. The key with bushings is final torquing them in their resting position as to not have excessive pull on them in extreme opposite positions. With the LCAs I used a jack placed under them to push them up to resting position before final torquing the bolts. I think that should make a difference in longevity. When all else fails, I bought them from FCP so I'll just grab some new ones for free when the bushings are done, lol!

      In the scheme of this thread, I can try some new axle bolts, I'm kind of thinking more and more that it could be the front and rear motor mounts quite possibly... Not sure what if any noise they make when needing replacement. But I'm only hearing noise and feeling feedback of it when unloading the throttle.

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    18. #16
      Junior Member metalbender's Avatar
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      Huh, what I've got going on sounds more like a clunk than a click... but it seem's like it's in the same neighborhood. I'll get to it eventually. Probably when I re-do my brakes, since when the car sat for nearly an entire month when the pandemic started, the pads glued themselves to the rotors, I've got that awesome wump-wump-wump braking thing going on
      2002 V70 2.4 N/A. 261k miles. Totaled for the second time November 16, 2016, RIP. - "Elin"
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    19. #17
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      So I'm concluding (without having yet replaced the axle bolts) that it's either lower motor mounts, or a loose upper bar poly torque mount. I have an iPD poly upper poly bushing and noticed the other day that I can spin it. Not sure if that's normal or if it should be tight... In any event when I turned it, the initial noise I was hearing seemed to have gone away and turned into more of a squeaky clunk when letting off the throttle...

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