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01-29-2015, 11:35 AM | #1 |
Drives: yaris now 1.0 12v Join Date: Apr 2014
Location: Italy
Posts: 10
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Super strange Transmission noise
Hello Folk! Sorry to bother you, but i'm experiencing a super-strange problem with my late 2010 Toyota Yaris 1KR-FE with 5 gears manual (yep, i'm european).
It's super hard to explain, that's why i will upload a video ASAP if requested. That's what's happening: when i reach an high number of revs (over 3500-4000 rpm) i hear a strange "cartoony" noise that disappears all by itself ( around 3-5s). Sometimes i hear it when i change gear but, most of the time, it's on the high revs. It doesn't happen all the times, but it's worrying! Personally i suspect a gearbox\transmission issue. My Toyota has 54 000 km (about 37 000 miles), it happens with ALL the gears except the 4th and 5th. I have NO problem inserting the gears, it's all fluid as usual. The problem started around december when i changed my brake fluid, coul be related? Hope you will help me sorting this out, Andrew |
01-29-2015, 06:03 PM | #2 |
Drives: yaris now 1.0 12v Join Date: Apr 2014
Location: Italy
Posts: 10
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https://www.youtube.com/watch?v=eo94ID3kKnI
here's the video, you can hear it (it's not quite easy unfortunately) between 0:09 and 0:11.. it sounds like this https://www.youtube.com/watch?v=fan15rky1pg please guys help me, i'm going nuts!!! |
01-29-2015, 06:33 PM | #3 |
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It does sound odd. Are you sure it is the transmission and not the exhaust that is making the noise?
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01-29-2015, 06:42 PM | #4 |
Drives: yaris now 1.0 12v Join Date: Apr 2014
Location: Italy
Posts: 10
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mmmh i've never thought about it! How can i verify if it's my exhaust? It isn't a rattling sound by the way.....
Last edited by virgilio992; 01-29-2015 at 06:52 PM. |
01-29-2015, 06:57 PM | #5 |
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Rev the engine in neutral to see if you still hear the noise.
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01-29-2015, 07:03 PM | #6 |
Drives: yaris now 1.0 12v Join Date: Apr 2014
Location: Italy
Posts: 10
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it doesn't i noticed that i can hear the noise after a 20-30 mins driving it's hard to hear it before that amount of time! PS: can't go to a toyota dealership, it's more than an 100 miles away!
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01-29-2015, 07:16 PM | #7 |
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It might not happen until it heats up. Once you start hearing the sound, then try the revving in neutral.
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01-29-2015, 07:22 PM | #8 |
Drives: yaris now 1.0 12v Join Date: Apr 2014
Location: Italy
Posts: 10
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i'll try tomorrow morning! (GMT +1 ! ) if it does the noise revving in neutral, what could be the solution? :\
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01-29-2015, 07:27 PM | #9 |
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If it does it in neutral it could be a crack in the manifold or bad gasket between the manifold and exhaust.
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01-31-2015, 06:06 PM | #10 |
Drives: yaris now 1.0 12v Join Date: Apr 2014
Location: Italy
Posts: 10
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Ok i checked out and it DOES the noise revving in neutral! What can i do to fix this out? At least i think we can exclude a gearbox problem!
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01-31-2015, 06:30 PM | #11 |
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That's good that it is not the gearbox. It is likely exhaust related, so now it is a matter of figuring out where it leaks when hot. You can try shining a light while someone else revs the car (once it is hot) or you can bring it to a shop where they can put it up on a lift to look from under.
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01-31-2015, 06:44 PM | #12 |
Drives: yaris now 1.0 12v Join Date: Apr 2014
Location: Italy
Posts: 10
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Thank you so much! I will try to shine a light with the help of a buddy of mine... unfortunately in italy it costs 50$ just to lift up your car..... i hope that the it would be cheap to solve it out
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01-31-2015, 08:30 PM | #13 | |
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Quote:
Out of curiosity, in what part of Italy are you located?
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02-01-2015, 06:26 AM | #14 |
Drives: yaris now 1.0 12v Join Date: Apr 2014
Location: Italy
Posts: 10
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02-01-2015, 07:21 AM | #15 |
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Ah, very good. I have never been that far south on the eastern side of Italy, except passing by there on a cruise ship.
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02-01-2015, 09:22 AM | #16 |
Drives: yaris now 1.0 12v Join Date: Apr 2014
Location: Italy
Posts: 10
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you should, the place is beautiful except for people's bad actitude
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