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acummings83
New User
Feb 8, 2016, 9:01 AM
Post #1 of 8
(2027 views)
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5-Speed Failure Cause
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I have had my 2006 Toyota Tacoma for 9 years. I’ve never had any major mechanical issues with it, until now. It has about 145k miles on it. It has a 5-speed manual transmission. This past September, I noticed that the clutch was slipping and thought I might need it replaced. I brought it to a local mechanic, who agreed that the clutch needed to be replaced, and made the repairs. Upon picking my truck up from the mechanic, I noticed a slight whine, but thought nothing of it. However, about a month after the clutch was replaced, I noticed that third gear was having difficulty engaging. It seemed to either not engage fully, or “over- engage”, where it would shift too far forward, resulting in gear grinding in both scenarios. At first, this would only happen after an extended period of highway driving. I brought it back to the mechanic who installed my new clutch. The technicians there said they drove my truck around, but they could not find any issues with third gear. They did observe the persistent whine, as I had before. However, the issue with third gear progressively worsened, to the point where the gear was nearly un-useable. Then, about two weeks ago, I was driving on the highway in fifth gear, when I suddenly heard a different whine of increasing pitch for about ten seconds, followed immediately by the sound of something breaking, a burning smell, and very rough driving. I pulled over, not sure of what had just happened, and after a brief inspection of the exterior of the truck, tried to get moving again. But the transmission would not engage in any gear; the engine seemed to be fine, but the transmission wasn’t. I had to have my truck towed back to the mechanic that installed the clutch a few months prior. The mechanic has evaluated the damage, and now has an expensive list of parts that need to be replaced. The transmission is being rebuilt. The mechanic’s theory about why the transmission malfunctioned is that there was a fluid leak. But there has never been any fluid in the ground anywhere I park my truck. Also, the transmission had fluid in it when it was disassembled after the incident, although it was noted to be “a little low”. Can anyone provide their opinion on what could have caused my transmission to fail? Thank you very much.
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Discretesignals
Ultimate Carjunky
/ Moderator
Feb 8, 2016, 2:25 PM
Post #2 of 8
(2014 views)
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Re: 5-Speed Failure Cause
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What was broken inside the transmission?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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acummings83
New User
Feb 8, 2016, 4:15 PM
Post #3 of 8
(2008 views)
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Re: 5-Speed Failure Cause
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I'm still waiting on the full list, but the mechanic has given me a generalized idea. All the bearings, all the synchronizers, the input gear, and the cluster gear are the only parts I know for sure. I imagine third gear will need replacing as well, and he mentioned something about fourth gear.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Feb 9, 2016, 1:09 AM
Post #4 of 8
(1994 views)
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Re: 5-Speed Failure Cause
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Quote">> Upon picking my truck up from the mechanic, I noticed a slight whine, but thought nothing of it.<<"
There's a real problem right there without being mechanical about this at all.
Not my specialty ever but was fully part of training and doing them. Clutches would do and seems this is where trouble started or was it just noticed then?
Transmission really isn't involved in a worn out clutch job except that it must have everything attached to it removed and put back properly when clutch is done + check its gear oil level just because and some can leak out removing driveshaft also noting if clutch was soaked with oil and some other common things.
Seem quickly this shifting issue and extra travel going into a gear - third you said.
This just didn't go back together right, something broke that was about to and now somehow a list of parts needed seems known?
That I don't get. An oil leak blamed? It's just been since September - it could have sprung a leak but from what and why?
Not here to judge anyone as it's open to lots of possible reasons IMO. At a glance I'd be looking for a good *core (used) to work with and a shop that deals with and does transmissions routinely - most do not around me and never did rather a specialty of its own if just for time, space, tools a shop wouldn't be using enough for one, once in a while.
Site has a trans specialist who I hope stops by. My point is just that something went wrong that was ignored, broke or plain done wrong with the clutch job now a big problem.
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Note: Around me for decades not just recently trans work has been on its own even for new vehicle dealers for vehicles under warranty even! Not because techs couldn't but it would be impractical for most as said plus hold up space for ongoing routine work folks would expect be one day or two turn around.
*By that I would let a trans shop choose the core to work on as the saw fit,
T
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Discretesignals
Ultimate Carjunky
/ Moderator
Feb 9, 2016, 5:40 AM
Post #5 of 8
(1988 views)
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Re: 5-Speed Failure Cause
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Is this 4wd? engine size?
It just seems funny that you go in for a clutch job and not long after end up with a failed transmission. They should have determined why there was a whine going on instead of letting you take off in it. That probably would have saved the transmission and lot of money and heartache.
I believe the key is finding out what actually broke and then determining why. Toyota 5 speeds are not known for grenading unless they are abused, someone forgets to put fluid in it, or the fluid had leaked out.
Wouldn't finding a good low mileage 5 speed in the salvage yard be a lot cheap that the cost of overhauling? Price gets really high when you start replacing gear clusters. The cost of overhauling and replace hard parts probably exceeds the cost of a good used one.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Feb 9, 2016, 5:51 AM)
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Feb 9, 2016, 6:40 AM
Post #6 of 8
(1980 views)
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Re: 5-Speed Failure Cause
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Agree with DS on this. Why did they give it back to you with the whine? I would test out a job to make sure it's 100% perfect or state there's more wrong.
It happened somehow and high bet this trans is plain junk - you did just keep driving it. 4X4 or not will matter IMO for a good used one just harder to find perhaps? I'd be looking that route........
T
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acummings83
New User
Feb 9, 2016, 8:36 AM
Post #7 of 8
(1971 views)
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Re: 5-Speed Failure Cause
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The mechanic says he could only find two used transmissions in the entire region, and they both had over 120k miles on them. That's why it seemed like a rebuild was a better option.
Is there any course of action I can take to try to place some of the responsibility for the transmission breaking down on the mechanic? Currently, they are saying it was essentially an unpredictable accident.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Feb 9, 2016, 9:24 AM
Post #8 of 8
(1969 views)
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Re: 5-Speed Failure Cause
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I plead IDK for some of what's available for you for this. I'm used to junkyards being in total contact with other yards even if quite far away. Some trans jobs can't be rebuilt (assorted) without a core which is thought to be fixable or ready to go IF CERTAIN PARTS are damaged might not be available new or worth it.
As far as assigning any blame for this it simply isn't the point of the site and impossible without knowing the scene and then still hard. You could ask and hope?
I have no way of knowing if a problem was there before the clutch job at all either.
What bugs me most is how or why the travel of the shifter could do that? I plain don't know if there a shim, spacer or what could pick on just one gear but sounds like some part broke and the bits went on to cause more harm yet unknown or I don't believe it's been torn down (taken apart) enough to know yet for sure?
T
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