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Lexus RX 300 Transmission Problems

306 messages,  Last post on Nov 28, 2009 at 8:40 AM

You are in the Lexus RX 300/330/350 Forum. Your Hosts are steve_ & tidester

What is this discussion about? Lexus RX 300, Transmission, SUV


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#265 of 306
Re: One More Transmission Gone [avery1] by la4mead
Jul 07, 2009 (9:27 am)
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Replying to: avery1 (Jul 07, 2009 8:58 am)

157,000 is pretty good... "New" transmission? Exchange rebuilt transmission? Rebuild your transmission?
 
Just as a "flush" is not quite the same as transmission "service" (changing the filter and checking the debris in the pan) there is a difference. I was lucky. The dealer replaced mine with a genuinely new (from the Kyushu plant) transmission after trying two rebuilt (exchange) transmissions off the local shelf, all under warrantee at 70,000 miles.
 
I would shop around. There are transmission shops (maybe even another dealer) who would love to have your business. Look for a reputable one that will rebuild yours with the modernized Lexus spec parts, rather than one off-the-shelf, if it's not a genuinely new transmission.
 
The new transmission (four years ago) in mine doesn't exhibit any of the mis-designed or under-designed traits that (presumably) led to durability issues like the original had. The original was clearly flawed. With the new one, there is no hesitation upshifting or down, no rough shifts, and no burning of the fluid like the original from 5/98 (early '99 model).
 
Good luck. I hope you let us know what transpires.
#266 of 306
Re: One More Transmission Gone [la4mead] by avery1
Jul 07, 2009 (10:04 am)
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Replying to: la4mead (Jul 07, 2009 9:27 am)

The first Lexus dealer quoted the $5700 and he said it was a new OEM transmission. I called another Lexus dealer who quoted me $4337 for a factory remanufactured and said that there were no "new" transmissions only remanufactured. Was yours really new? What is the name of your dealer and where are they? At least I could call them. They are only quoting me 1 year unlimited miles on the warranty for the remanufactured unit.
 
I did have a complete transmission service done including the flush.
#267 of 306
Re: One More Transmission Gone [avery1] by ka1cvy
Jul 07, 2009 (10:11 am)
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Replying to: avery1 (Jul 07, 2009 8:58 am)

don't waste your money on a new transmission. you can get a rebuilt with a 1 year warranty for around $3,500. The transmisison guy that rebuilt mine recommended changing the transmission fluid every 30K miles or so which is standard for any transmisison. I had changed mine at 47K which is not bad, but the nature of these light duty trannies makes them go early more times than not. You did very good getting over 150K out of yours, especially since you didn't do any service to it until very recently.
Ron Ka1cvy
#268 of 306
Re: One More Transmission Gone [ka1cvy] by avery1
Jul 07, 2009 (10:59 am)
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Replying to: ka1cvy (Jul 07, 2009 10:11 am)

I've gotten a quote from a different Lexus dealer for $4300 for the same part. (I checked back with the original dealer and he confirmed he was using a remanufactured part.) I did get a quote from the local Toyota dealer for $4050 but I would still have to pay $300 for the diagnosis and get the car towed to Toyota so I agreed to $4500 at the first Lexus dealer including the diagnosis. I also have their 2010 RX 350 until the work is done so all in all I feel I did as good as possible under the circumstances. Amazing that a few phone calls saved me $1267 at the same dealer.
#269 of 306
Re: One More Transmission Gone [avery1] by wwest
Jul 07, 2009 (6:56 pm)
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Replying to: avery1 (Jul 07, 2009 10:59 am)

http://cgi.ebay.com/ebaymotors/1998-2003-LEXUS-RX300-U140F-FWD-TRANSMISSION_W0QQ- cmdZViewItemQQ_trksidZp3286Q2em20Q2el1116QQhashZitem3ef64f6b6aQQitemZ27042037233- 0QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
#270 of 306
Re: One More Transmission Gone [wwest] by avery1
Jul 07, 2009 (7:03 pm)
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Replying to: wwest (Jul 07, 2009 6:56 pm)

Thanks for the link. I've already committed to Lexus doing the work. Too bad. Do you know what the labor is to remove and install one of these?
#271 of 306
Re: One More Transmission Gone [avery1] by minorsalazar
Jul 12, 2009 (10:50 pm)
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Replying to: avery1 (Jul 07, 2009 7:03 pm)

Wow....I am getting cold feet my wife and I were on our way tomorrow to look at a couple of used 2001 rx300's with the intent of buying one of them. They both have aprox 85,000 miles and are one owner cars. I foung this thread and now am very nervous about buying one.
I did not have time to read the entire thread. Was the 01' less prone to failure than the 99 and 00? Was the 330 better than the 300's.
Thanks for the input.
I do not want to purchase one of these and worry and wait for the tranny to go out.
#272 of 306
Re: One More Transmission Gone [minorsalazar] by la4mead
Jul 12, 2009 (11:15 pm)
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Replying to: minorsalazar (Jul 12, 2009 10:50 pm)

see also the RX300 forum, and search for more like this one: link title
 
Although more common with first year models (1999, including those built in 1998), the transmissions have not always been unusually troublesome. Many people report mileage approaching 200,000 miles without trouble. But there is enough concern that you should be cautious of any SUV style vehicle's transmission.
 
Some report hesitation, burned fluid (indicating wear) and failures much earlier. But these concerns don't lead to a hard and fast rule, across the board. My friend's AWD 2000 model is doing great at 200,000 miles. Mine was replaced under warrantee.
 
The first model year for the RX330 was 2004. Use a keen eye on those like you would any first-year model since the drivetrain was changed.
 
The moral is: I'd be suspicious of any used car I'm considering. But that doesn't mean you won't find what you're looking for (a great car with lots of life left). Knowing what to look for is helpful. Look for signs of city mileage, which tends to be hard on a car. Roadtest the transmission thoroughly under widely varying conditions. Pull the dipstick and wipe it on a paper towel. Check for a burned smell, indicating wear. New fluid is a cherry-pink color, with the smell of a petroleum based product, absent of burned odor and brownish tint.
 
Check RX's like you would any used car. There are good ones. An early model that had the transmission replaced under warrantee might also be worth considering. Private party or dealer, one with complete service records including tranny service (which is not incl in regular maint "packages") is your best bet.
 
Please report back what you find. Good luck!
#273 of 306
Re: One More Transmission Gone [minorsalazar] by wwest
Jul 13, 2009 (9:01 am)
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Replying to: minorsalazar (Jul 12, 2009 10:50 pm)

My '01 F/awd RX300 had the ATF drained and refilled twice at about 40,000 miles because the ATF was looking dirty and smelled burned. I am now at ~75,000 miles and am checking the ATF condition on a regular basis, each oil/filer change. I have mentally prepared myself for a DIY transaxle overhaul before it reaches 100K.
 
If that happens then it will also get converted to R/awd at the same time. I may also design a circuit that will automatically hold the tranasaxle in the current gear, prevent an upshift, for 10 seconds or so even if/when the gas pedal is fully released. Obviously the new circuit would need to be disabled if the OAT declines to or close to freezing.
 
The RX330 and later RX models use DBW to "protect the drive train" but that "fix" came with yet another set of short-comings, the inability to accelerate immediately after, 1-2 seconds, a brief period of coastdown.
#274 of 306
Re: One More Transmission Gone [la4mead] by wwest
Jul 13, 2009 (9:26 am)
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Replying to: la4mead (Jul 12, 2009 11:15 pm)

Beginning with the RX330 Lexus used DBW to prevent the engine from rising in RPM until a previously engine/transaxle control ECU "commanded" transaxle downshift ran to completion.
 
Since the earlier RX300 used a mechanical coupling between the gas pedal and throttle plate the same technique could not be used.
 
On the other hand my '01's TC, Traction Control, dethrottles the engine via EFI fuel starvation control. Why couldn't Lexus use this same technique to "hold off" rising engine RPM/Torque for downshift delays...??
 
The throttle plate would still open, just as it does/is with TC activation, but the only harm in that is the engine ROARING to life once the downshift is completed. On the other hand there are circumstances with my RX300 wherein VSC activates and I am forced to completely release and the re-apply pressure to the gas pedal before the engine will respond at all.

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