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Discussion Starter · #1 ·
I recently started hearing a "tock" like sound from the front left side of the car when under load (either accelerating or decelerating). Is this the dreaded "Axle Ping"? Here is more information that may help to diagnose.<p>1. Car has 10,500 miles on it.<br>2. The "tock" does not always occur during acceleration/deceleration. It is intermittent.<br>3. I hear the exact same sound when I have the brake applied and shift into reverse (from drive). It makes the sound when reverse engages. I hear it all the time when I back into my garage.<br>4. Sound is pretty loud. I can hear it over the radio... Very annoying.<br>5. Sound started within the past few weeks, just after 10,000 turned over on the odometer. <p>If it's not necessarily axle ping, then what else could it be? Motor or tranny mounts? Something else?<p>I have an appointment with the local dealer to diagnose, but I thought I would throw it up hear and see what you guys think is most likely the problem.<p>Thanks in advance everyone,<p>Jeff <IMG NAME="icon" SRC="http://********************/smile/emcocktl.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0">
 

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Re: Axle Ping or something else? (jclough)

axle ping all the way (and get the XC90 bolts instead of the glue):<p><I>TNN77-08-2004-03-25 Title: Front Axle Ping Noise <br>When performing garage shifts (Drive to Reverse / Reverse to Drive), the hub axle interface may make a ping type noise. This noise may also be heard while cruising and changing from acceleration to deceleration. Note: For those who have had no luck with the metal adhesive fix should request the axle bolt specified in the XC90’s TNN77- 09.</I><p>
 

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Re: Axle Ping or something else? (jclough)

Get that checked out. I had the same issue, upgraded my trans mount and the "tock" noise still continued. Especially when engaging the trans from Park to Reverse. The dealer couldn't figure it out.<p>I then flushed my transmission and found that my tranny fluid was a little low. Once the fluid was flushed and topped off, it completely stopped. Hope that helps. Good luck
 

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Re: Axle Ping or something else? (Rwinjr249)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Rwinjr249</b> »</i></TD></TR><TR><TD CLASS="quote">Get that checked out. I had the same issue, upgraded my trans mount and the "tock" noise still continued. Especially when engaging the trans from Park to Reverse. The dealer couldn't figure it out.<p>I then flushed my transmission and found that my tranny fluid was a little low. Once the fluid was flushed and topped off, it completely stopped. Hope that helps. Good luck</TD></TR></TABLE><p>Any idea how to check the tranny fluid level? ..i've read the manual and it only references the transmission oil capacity, not how to check it. I see you have a GT. I have an MT but it's making a similar "tock" noise with similar symptoms...I may replace the axle bolts with the XC90 ones, but want to try your suggestion first.
 

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Discussion Starter · #5 ·
Re: Axle Ping or something else? (MagoonR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>MagoonR</b> »</i></TD></TR><TR><TD CLASS="quote">axle ping all the way (and get the XC90 bolts instead of the glue):<p><I>TNN77-08-2004-03-25 Title: Front Axle Ping Noise <br>When performing garage shifts (Drive to Reverse / Reverse to Drive), the hub axle interface may make a ping type noise. This noise may also be heard while cruising and changing from acceleration to deceleration. Note: For those who have had no luck with the metal adhesive fix should request the axle bolt specified in the XC90’s TNN77- 09.</I><p></TD></TR></TABLE><p>Thanks MagoonR. I kind of thought it might be axle ping. My appointment is on Monday, so I'll find out for sure.<p>So, if I didn't have axle ping for the first 10k miles, but now I do, what changed? I understand that axle ping is caused by lateral movement of the axle splines, but why are they moving now, and not before?<p>I'll see if my dealer will go for the XC90 bolt fix and skip the messing around with the loctite.<p>
 

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Discussion Starter · #6 ·
Re: Axle Ping or something else? (Rwinjr249)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Rwinjr249</b> »</i></TD></TR><TR><TD CLASS="quote">Get that checked out. I had the same issue, upgraded my trans mount and the "tock" noise still continued. Especially when engaging the trans from Park to Reverse. The dealer couldn't figure it out.<p>I then flushed my transmission and found that my tranny fluid was a little low. Once the fluid was flushed and topped off, it completely stopped. Hope that helps. Good luck</TD></TR></TABLE><p>I'll have them check the tranny fluid level as well. Thanks!
 

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Discussion Starter · #7 ·
Re: Axle Ping or something else? (jclough)

** Update **<p>Dealer diagnosed as axle ping (no suprise) and applied the loctite as per the TNN. It sat for 6 hrs on the lift to dry and has worked perfectly since that time. I'm not sure how long it will last, but the dealer said this was the required first step and if it doesn't hold, they would be open to the XC90 bolt solution.
 

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Re: Axle Ping or something else? (jclough)

Silly dealers.<p>At least they acknowledged that the XC90 bolts are a valid option. Thats surprising in itself and will be nice, when you return in a week.
 

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Re: Axle Ping or something else? (imageomega)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>imageomega</b> »</i></TD></TR><TR><TD CLASS="quote">Silly dealers.<p>At least they acknowledged that the XC90 bolts are a valid option. Thats surprising in itself and will be nice, when you return in a week.</TD></TR></TABLE><p>yeah, I think it has a lot to do with following protocol for warranty work in order to get paid vy VCNA. The dealership here in Edmonton is pretty darn good and has improved since it's under new ownership. All things considered, I'm quite pleased with them.
 
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