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Helical gears present an axial load, usually addressed with thrust
bearings. Failing ball bearings can make a whirring sound, so a ball
bearing that handles the axial thrust could be the culprit. I'm
guessing that the axial load would be greater in higher gears so
that's where it's noticeable. Your deeper dive into noise analysis
may reveal fainter noise in the lower gears. Again, mostly a guess,
but I used to replace bearings on one of my 3-cylinder Saabs quite
regularly because of noise. <br>
<br>
The good news, I suppose, is that it seems unlikely that such a
condition could have been the fault of the repair shop. I don't know
how you could cause that damage from the outside.<br>
<br>
My solution would be to hunt for a salvage yard transmission. And
help her with the labor.<br>
<div class="moz-signature"><br>
<img src="cid:part1.Ts9IET3M.FAHMZQ19@snet.net" border="0"></div>
<div class="moz-cite-prefix">On 5/25/2025 12:52 PM, Pat Horne wrote:<br>
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cite="mid:B56A764D-6DB0-41AF-9543-F40DFB961D5F@icloud.com">
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Also, try up hill & down.
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</div>
<div><br id="lineBreakAtBeginningOfSignature">
<div dir="ltr">Pat Horne
<div>We support Habitat for Humanity</div>
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On May 25, 2025, at 10:51 AM, Moose <a class="moz-txt-link-rfc2396E" href="mailto:eric@megageek.com"><eric@megageek.com></a>
wrote:<br>
<br>
</div>
<div dir="ltr"><font size="2" face="sans-serif">Jeff, this is a
good idea. Will do.</font>
<br>
<br>
<font size="2" face="sans-serif">The reason I'm really
confused is that
the noise is only when you give it ANY throttle. So even if
you are
not accelerating (i.e. Not under load.), but just have the
pedal down a
little, you hear the noise.</font>
<br>
<br>
<font size="2" face="sans-serif">Wouldn't both the </font><font
size="3">differential
and drive shafts make noise all the time, or at least under
load?</font>
<br>
<br>
<font size="2" face="sans-serif">But I plan to do a much
deeper dive.</font>
<br>
<br>
<font size="2" face="sans-serif">Thanks again to everyone with
this.</font>
<br>
<br>
<font size="2" face="sans-serif">Moose</font>
<br>
<br>
<br>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">From:
</font><font size="1" face="sans-serif">Jeff Scarbrough
<a class="moz-txt-link-rfc2396E" href="mailto:fishplate@gmail.com"><fishplate@gmail.com></a></font>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">To:
</font><font size="1" face="sans-serif">Moose
<a class="moz-txt-link-rfc2396E" href="mailto:eric@megageek.com"><eric@megageek.com></a></font>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">Cc:
</font><font size="1" face="sans-serif"><a class="moz-txt-link-rfc2396E" href="mailto:shop-talk@autox.team.net">"shop-talk@autox.team.net"</a>
<a class="moz-txt-link-rfc2396E" href="mailto:Shop-talk@autox.team.net"><Shop-talk@autox.team.net></a></font>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">Date:
</font><font size="1" face="sans-serif">05/25/2025 11:03</font>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">Subject:
</font><font size="1" face="sans-serif">Re: [Shop-talk]
Manual transmission issue???</font>
<br>
<hr noshade="noshade">
<br>
<br>
<br>
<font size="3">Have you checked the differential(s) and drive
shafts?
My TR6 had an annoying transmission noise that, after a
rebuild, turned
out to be in the diff. </font>
<br>
<br>
<font size="3">Noises in a car are notoriously hard to track
down by
sitting inside.</font>
<br>
<br>
<font size="3">On Sun, May 25, 2025, 08:47 Moose <</font><a
href="mailto:eric@megageek.com" moz-do-not-send="true"><font
size="3" color="blue"><u>eric@megageek.com</u></font></a><font
size="3">>
wrote:</font>
<br>
<font size="2" face="sans-serif">Braintrust,</font><font
size="3"> <br>
</font><font size="2" face="sans-serif"><br>
I don't mess with transmissions at all, so I'm in the dark
here.
Hopefully someone has the answer and it's an easy fix.</font><font
size="3">
<br>
</font><font size="2" face="sans-serif"><br>
The issue, 2017 Jeep Patriot with a 5 speed manual
transmission
makes a 'whirring' sound when driving in 3rd gear or higher.</font><font
size="3">
<br>
</font><font size="2" face="sans-serif"><br>
Started about a year ago, when car was picked up from a
franchise mechanic
shop. (owner of car is a single woman without much money.)
</font><font size="3"><br>
</font><font size="2" face="sans-serif"><br>
When she called them back they where like, "Well, we would
have to
charge you to look at it." So since she already suspected
they
caused the issues, she didn't want to give them more money.</font><font
size="3">
<br>
</font><font size="2" face="sans-serif"><br>
She brought it to another shop and they said, "You need a
new transmission."
That will more than likely exceed the valve of the Jeep. So
they
just did a fluid change, and that was it. Note, in their
carfax report,
they listed that they "installed a new transmission" in
addition
to the fluid change, so I don't trust them either.</font><font
size="3">
<br>
</font><font size="2" face="sans-serif"><br>
It's a manual 5 speed. I checked the fluid level and it is
exactly
where it should be. So I did a road test.</font><font
size="3"> <br>
</font><font size="2" face="sans-serif"><br>
Here is the crazy part.</font><font size="3"> </font><font
size="2" face="sans-serif"><br>
There is NOTHING that I can feel that would indicate any
transmission problems.
No slipping, no chucking, it shifts smooth and pulls
strong. No vibrations.
The only thing is that noise, and that ONLY happens when you
give it throttle.</font><font size="3">
<br>
</font><font size="2" face="sans-serif"><br>
So if you are going down the street at 50, and take your
foot off the gas
pedal, noise goes away. If you just give it a little gas,
noise returns.</font><font size="3">
<br>
</font><font size="2" face="sans-serif"><br>
If you have it in neutral coasting, no noise. If you are
engine braking,
no noise. The noise is ONLY if you have your foot on the gas
in the slightest.</font><font size="3">
<br>
</font><font size="2" face="sans-serif"><br>
Note, there is also no noticeable noise in 1st or 2nd gear.</font><font
size="3">
<br>
</font><font size="2" face="sans-serif"><br>
I am thinking that the original shop did something to the
car to make it
start this noise, knowing she would take it back there to
get it fixed
and that it's a simple fix.</font><font size="3"> <br>
</font><font size="2" face="sans-serif"><br>
I would love to be able to fix this as it is a hard working
girl that doesn't
have much money and really takes care of her car. She is
also a good
friend of my fiancee, so it would be bonus points for me.
8>)</font><font size="3">
<br>
</font><font size="2" face="sans-serif"><br>
Thanks and I hope everyone takes a moment to think about all
the Soldier's
that gave their lives to protect our freedoms, (no matter
what country
you are from.)</font><font size="3"> <br>
</font><font size="2" face="sans-serif"><br>
Have a great weekend!</font><font size="3"> <br>
</font><font size="2" face="sans-serif"><br>
Moose</font><font size="3">_______________________________________________<br>
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