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Tsikot Member
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- Sep 2011
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September 15th, 2011 03:52 PM #1In December 2009 I got my Mitsubishi Montero 2010. In the last week of January 2010 I traveled to Angeles City. Nothing serious, went through Angeles traffic, visited a satellite office, parked in the basement, etc. Going back to Manila on NLEX I could not go beyond 60kph because I was hearing metal to metal grinding in the rear. Obviously this was a rear assembly problem. Diamond Motors confirmed that the differentials have failed. A month old but NEW car with a differential problem sounds crazy and extraordinary. It calls for a replacement.
So they fixed it. The problem was there was a lot of performance issues, clicking/tucking sound beneath (loose U-joint), shift shocks etc. after it was done. A lot of business days wasted going to and from the dealer. No loaner car given. It looks like they nailed it last month when the Montero that I drive everyday seems to be running smoothly except for the shift shock abnormality from time to time. It is always good if you know that Mitsubishi plant engineers (the chief and senior ones) do the work - a little quality there.
But one thing they never fixed was the annoying humming sound at 75kph to 90kph. It stops at 90. The sound is high pitched, high frequency so you can hear it with stereos on. It only goes when you press the pedal. I've been waiting for Mitsubishi Thailand responses because they "referred" it to them but still NO action. All research tells us that it is still a rear axle/differntial problem from the pinion to the rear wheels. The car is going to be 2 yrs old in 3 months.
Anybody having this problem? Advice?
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September 15th, 2011 07:50 PM #2
looks like you got a lemon unit. a differential failure is major for a one month old monty
best to have demanded a change of unit and not just a fix that did not solve your problems
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Tsikot Member
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- Sep 2011
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September 16th, 2011 10:32 AM #3Yep, really major. I gave them a chance after a demand letter from my attorney. Obviously, MMPC would say that it is "under warranty" and will be fixed by Mitsubishi. No lemon car law here in Phil. Soon, probably we should lobby for one to protect the rights of customers specially if defects like this are considered major i.e. "differential failure", "sudden acceleration", "surging" etc.
There is also a case that I know who had the same problem. So it is not just me.
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Tsikoteer
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July 26th, 2013 09:52 AM #4Yung sa amin din may humming when running at 80kph on 4th gear.
Below and above that, wala naman. Also changed the diff fluid nung 30k PMS. We are now at 52500 and no problems naman.
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Verified Tsikot Member
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October 1st, 2013 08:47 AM #5Sir babynos01 did you change the type of fluid? Or same specs lang?
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Verified Tsikot Member
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- May 2012
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January 29th, 2014 03:05 PM #6
sorry for bringing up this old thread. would just like to get an update ano na nangyari?
transmission fluid lang ba pinalitan?
may humming sound din sa amin when running 80kph.
lalabas yung sound when you step on the gas pedal and maintain 80kph pero if you tried to step further to increase the speed, nawawala.
under warranty pa yung Montero, any one na naka experience pa ng ganito?
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Tsikoteer
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January 29th, 2014 10:51 PM #7^ganyan din amin haha.
Magincrease or mag slow down ka lang ng kaunti, nawawala siya.
Ordinary gear oil lang ginamit ko, yung sa Total. Now at 62k and hindi ko pa siya pinalitan uli. Sa 80k nalang haha.
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Verified Tsikot Member
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January 30th, 2014 11:45 AM #8
sa 80 kph lumalabas yung tipong nakaapak ka lang konti sa gas pedal para ma maintain yung 80kph, andun yung humming sound.
pero step to increase, nawawala.
sir, gear oil lang pinalitan mo, yung oil mismo sa differential?
ask ko na din po ilang liters?
hindi na po umulit yung humming sound?
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Tsikoteer
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January 30th, 2014 11:58 PM #9
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Verified Tsikot Member
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January 31st, 2014 01:11 AM #10MT at 2WD po ba mga units nyo?
MT 4WD lang kasi ang equipped with flexible flyweel na kagaya nito
http://www.valeoservice.com/data/mas...75.pdf?rnd=463
Sa MT kapag 4th gear wherein the engine and differential are basically directly coupled possible mag cross ang natural frequencies nila at magkaroon ng high frequency vibration.
Inherent na yan sa anything that spin fast. Maski jet engine ng airplane nga meron certain rpm na sobrang ingay.
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