Belt slip noise in manual mode shifting >5.5k rpm?
#61
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Location: Australia
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Hi, am having the same issue on my Nov 2013 with 5,000km; of course the monkeys at the dealership don't believe its an issue and as such doesn't need addressing.
any chance someone can post a link to the relevant TSB.
many thanks
any chance someone can post a link to the relevant TSB.
many thanks
#62
Lexus Fanatic


#63

Thanks, I need to do this
#64

Had this addressed today. OEM parts were $174 shipped from eBay, install was $80 at my independent shop. Zero noise on shifts now and shifting seems crisper (though that could be my imagination).
#65
Lexus Fanatic

I feel the same way. Another happy F owner !!
You can either buy oem parts from Sewell online and have them installed or buy them cheaper from ebay or rock auto ( i think . I would ask lobux) and have them installed. The non oem parts are the same but sold at a HUGE discount Since I was having the parts installed at the dealer I brought them oem parts so they wouldn't ***** and complain . It makes a difference in how the car feel when it shifts , plus the loss of the slip noise just makes the car seem like its operating normally as it should
#66
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I agree with you in practice it would be possibly easier to do it myself, but these cars sell here for $130k USD here, and well, its an issue that they (Lexus dealers) need to take responsibility for.
#67

My 2011 is at dealer getting this fixed

#70
Lexus Fanatic

just a follow up post. I heard the noise today but very very slightly and only in first gear. It used to happen 1st through 3rd.Just wondering if the tensioner pulley can be adjusted or the dealership can spray something on the belt to totally eliminate the noise. I have a feeling this is a minor design flaw in the ISF. The motor shifts too hard and fast for the pulley and belt. New OEM parts installed at the dealer and still has an very small slip
#73
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Join Date: Jul 2013
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I'm pretty sure mine does too. i was wondering what it was. thank for the info guys
#74

The random ticking noise that went away with the new tensioner and belt has returned on mine. I have a feeling it's related to the alternator drive, but no hard evidence to say with certainty this is the issue. I think we are back to "they all do this" and there really isn't a permanent fix for it.
#75
Lexus Fanatic

The random ticking noise that went away with the new tensioner and belt has returned on mine. I have a feeling it's related to the alternator drive, but no hard evidence to say with certainty this is the issue. I think we are back to "they all do this" and there really isn't a permanent fix for it.

I guess, it is what it is . Im just surprised that the issue was only resolved for a few months. It has reduced it by quite a bit but not 100%.