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Toyota Highlander Transmission Problems

230 messages,  Last post on Dec 01, 2009 at 9:52 AM

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What is this discussion about? Toyota Highlander, Transmission, SUV

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#154 of 230 Re: transmission [wwest] by rpanait Jul 28, 2009 (9:52 am)
Replying to: wwest (Mar 03, 2006 5:18 pm) Hi, I have a 2002 V6 Highlander, 3.0L and for the last 6 months I have a strange problem with my SUV. When decelerating from over 60Km\h to ~10Km\h, around 20Km\h I feel a shift shock. It seems to happen when it tries to downshift from 2nd gear to the first one. But this happens only when driving over 60Km\h and it's not all the time. We checked the brakes, calipers, but it wasn't that. Reading this thread someone was mentioning about a TSB mentioning a re-programing of the ECM.   Before taking my Highlander to the nearest dealer I test drove it again and came up with these conclusions: - it happens only when I am over 60Km\h, in the 4th gear; - it does not happen every single time I decelerate; - if am in the 4th gear and I kill the over-drive before or when starting to slow down, so I manually force the transmission into the 3rd gear it won't give me this shift shock when reaching 20Km\h (when downshifting from 2nd to 1st gear); - it does not happen if I put in Neutral any time before reaching 20Km\h.   Yesterday I took the car to Toyota dealer and I told them about the issue and that re-programing the ECM might fix the problem. They could not reproduce the noise and at the end they scanned the Engine Control Module and the Transmission Control Module. They reprogrammed the ECM only and, weird, the service manager told me "it takes one week for the computer to relearn what it has to do". If I program a computer, I teach the computer what to do. I did not understand his explanation. Can anyone confirm these words to me, please?   Since yesterday I had 4 milder shift shocks so I am not sure if reprogramming the ECM helped or not. Any previous experience? Replies to this message: pacoc (Jul 28, 2009 6:57 pm)
#155 of 230 Re: Mine runs great [karen18] by tcp2 Jul 28, 2009 (11:09 am)
Replying to: karen18 (Apr 08, 2006 11:09 am) I have a 2005 Sienna with the same drivetrain. This engine/transmission combo does do the hesitation, but driving "style" can mitigate the problem a great deal. Try rolling on and off of the throttle instead of stabbing it to the level you want it to be at. A smooth application of throttle works better than quick changes. Also, if you know a hesitation is occuring, hold the throttle steady for a second and let the transmission's brain catch up. It's not perfect, but honestly, I have zero problems with the engine and transmission. I must be trained to drive in this manner and it's not an issue for me.
#156 of 230 Re: transmission [rpanait] by pacoc Jul 28, 2009 (6:57 pm)
Replying to: rpanait (Jul 28, 2009 9:52 am) My HL is the same model as yours, it had the same simptoms but with some diferent causes. Mine was due to an overheating in the tranny. After taking it three times to the Toyota dealer I took it to an independent shop. We discovered that the ATF was blackened, with no viscosity. I replaced the ATF with Valvoline semi sinth ATF and the over heating and all their simptoms dissapeared. Now I have a VSC alarm and is what I´m working on. As soon as I have the solution, I will share with you all.   Oscar
#157 of 230 2002 HL Tranny by laps71 Aug 16, 2009 (5:36 pm)
I also have an 2002 HL. I have however a major problem now. Besides the black ATF, I now have grinding in the tranny. I am down completely. Replies to this message: pacoc (Aug 17, 2009 9:16 am)
#158 of 230 Re: 2002 HL Tranny [laps71] by pacoc Aug 17, 2009 (9:16 am)
Replying to: laps71 (Aug 16, 2009 5:36 pm) Sorry to hear that, it seem as if you didn´t have an alarm on the dashboard and the tranny wrecked herself. Why don´t you make a flushing on the oil and replaced that with a new and clean one. Maybe is still posibble to have it running again?   Regards   Oscar
#159 of 230 trans by laps71 Aug 17, 2009 (8:03 pm)
sounds like the gears are not where they should be, 1st gear.
#160 of 230 2002 Highlander 4 x 4 Propellor Shaft by rteixeira Aug 23, 2009 (5:31 pm)
I have 170,000 kilometers, aka about 100,000 miles.   Had transmission fluid flushed, cleaner and additives at dealer. They heard noise and indicate its bearings noisy when in reverse. recommend replace propellor shaft. In Canadian dollars its estimates as approx. $2000 for parts and labor plus tax installed.   I only hear it in reverse once and while. Could keep driving until its a real issue.   not very mechanical savy. Looking for advice if I plan on keeping car till I run it into ground is it worth replacing now? What is impact of waiting till it wears more. Is it going to cause other damage.
#161 of 230 05 Highlander Tranny Bearings by mcpax Aug 25, 2009 (7:44 am)
How difficult is it to replace the tranny bearings on a 05 Highlander. The Dealer wants to charge me 2800.00. The car just makes a small growling noise, how long could I go without changing them?
#162 of 230 Transmission cooler by alotawatts Aug 26, 2009 (11:47 pm)
Anyone know if Highlanders (6cyl) with a transmission cooler / tow package are less likely to have transmission problems ? Alot of folks have not indicated if theirs is FWD or AWD. Sounds like both have problems (except the tranfer case leaks)correct ? Also besides the tranfer case leak issues Sounds like both F & AWD have problems correct ? Mine = FWD with tow package is at 59k miles and seems fine. Replies to this message: wwest (Sep 23, 2009 7:37 am)
#163 of 230 Transmission Trouble? by paul143 Sep 22, 2009 (4:13 pm)
I have an 09 Highlander (4WD) w/towing package, 2 weeks old. When accelerating and speed gets to about 35 (RPM 1500) the car begins to shutter slightly. This continues to about 55 MPH, but only when accelerating on a hill or on the level. It is a 5 speed automatic. Is this normal? Any ideas? Thanks. Replies to this message: casandraw (Oct 11, 2009 8:01 am) minnesnowta1 (Oct 12, 2009 5:03 pm) wwest (Oct 12, 2009 8:07 pm) fixrixsix (Oct 13, 2009 7:18 am) wwest (Oct 13, 2009 9:20 am) and 3 more... minnesnowta1 (Oct 15, 2009 7:00 am) and 2 more... minnesnowta1 (Oct 21, 2009 5:49 am) fixrixsix (Oct 24, 2009 3:24 pm) stevied5 (Oct 25, 2009 11:52 am) minnesnowta1 (Oct 27, 2009 2:41 pm) vttaco (Oct 28, 2009 8:30 am) and 7 more...

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