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You are in the Lexus RX 300/330/350
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Lexus RX 330
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#451 of 1867 Update on my RX issues
Apr 20, 2004 (10:16 am)
In posts numbers 273 and 274 I listed the issues I've had with my 2004 RX 330 AWD with nav. I recently went in for my 5,000 mile service and here are the responses I received from local Lexus service:
1. "Ticking sound" from the engine--The service rep told me this is "normal" although louder on this vehicle than others. He did say that Lexus is trying to see if they can develop a solution for this. (I think someone may have reported this effort earlier).
2. Transmission "clunking": I think the issue I have experienced is different than what most have reported along these lines. My only problem was that the tranny "jumps" a little when accelerating again after decelerating in roughly the 15-30 MPH range. The service rep said the ECM update had already been performed on my vehicle, which was built in Japan and on which I took delivery in November.
3. Rear wiper contact problem--They told me there is a new wiper blade out for this and that they would have it in in a couple of days. I haven't gone back to have it installed yet, but I wonder if this means they've developed a fix or are just replacing it with a part of identical design. I'll let you know if it works.
4. Dash rattles--They told me up front that they should be able to fix this (and there is a TSB on at least one form of rattle), and so far (knock on wood) they seem to have taken care of this one.
5. Outside temperature gauge--I may be the only one reporting how unreliable this gauge is on my RX, and the dealer said there was nothing they could do. Fortunately it's not a key item--there's always the old reliable "stick your head out the window" method.
6. Disappointing gas mileage--I was getting 16-17 in about half local/half highway driving. Pure highway trips were in the 2o-21 range. Since the weather warmed up and the vehicle is better broken in, I'm getting more consistent 17 MPG in mixed driving and got close to 23 on a recent all-Interstate trip. I'm still disappointed not to be at the bottom end of the EPA range (18-24) in mixed driving, but not much to complain about. The service rep said the nearly 23 MPG I got on the one highway trip was "the best I've heard of."
Bottom line--I'm grateful to have the %$# dash rattle apparently fixed. It would be nice if Lexus really did figure out a way to muffle the engine ticking, but I'm not holding my breath. All in all I'm fairly pleased with the vehicle thus far. Hope the rear window wiper replacement works, and as I said I'll let you know.
Thanks again to all the helpful posters here.
#452 of 1867 Re: Update on my RX issues [dsindm #451]
Apr 20, 2004 (12:00 pm)
Good to hear that you have most of problems fixed. Yes, please keep us update on ticking sound and rear wiper contact problem.
#453 of 1867 dsindm
Apr 20, 2004 (1:25 pm)
I suspect, strongly, that when the engine/transmission ecu(s) detect a coasting circumstance the transmission automatically "upshifts" or even possibly into neutral. There are two positive aspects to this, increasing the fuel economy by reducing engine braking, and increased safety with reduced engine braking to the front wheels if the roadbed happens to be slippery, ice or packed snow.
But the negative aspect as you indicate is "clunking" due to a sudden need to downshift back into "driving" range when you reapply the throttle at a slightly aggressive rate.
I moved the OAT sensor on my 01 RX300 to the driver's side front bumper area so it wouldn't be affected by the radiant heat of the radiator and A/C condensor.
#454 of 1867 Re: open moon roof.... sounds like a helicopter [katherine6 #435]
Apr 20, 2004 (2:12 pm)
I only experienced the loud helicopter noise when either or both of the back windows are open. If I close them (while still having the moonroof open) the helicopter noise goes away. Initially, I couldn't figure out where/what the noise was and what was causing it. I thought I had a blown tire or that something broke loose from under my vehicle. The noise is deafening!
Apr 21, 2004 (5:24 am)
I found the OPPOSITE is true in this and every other vehicle that I have had. If I roll down the back windows slightly (2 inches or so) the noise goes away.
It is interesting that yours is not apparent when all of the windows are up and is apparent when the rear ones are down. The whole physics of this is caused by wind rushing in through the moonroof and not having anywhere to go. It then "buffets" back through the vehicle trying to get back out of the sunroof.
What Lexus needs to do is design a larger wind deflector so that the wind does not rush in the sunroof.
Has anyone tried one of the exterior wind deflectors? I can't stand the way they look but it should definitely help the problem.
#456 of 1867 Re: Paint chips [02whttrib #413] [rx330owner #428]
Apr 21, 2004 (5:16 pm)
Just returned from a 1,000 mile trip on I-75 and found about 3-4 new stone chips on the top of the hood, front of the hood, and bumper of my 2.5 month old RX330 with 3,000 miles. I don't follow closely to trucks or anything else that might kick up stones yet this is a mess. I agree that the paint quality seems poor. My older cars have far more miles and fewer chips.
Has anyone else noticed that when you get a stone chip it takes out a huge amount of paint...both in surface area and depth? It doesn't seem right. What can we do? Any suggestions? At this rate I'll have no paint left on the hood in about 3 years.
#457 of 1867 Paint chips and other issues
Apr 22, 2004 (5:41 am)
I was cleaning my Flint Mica RX330 last week and I noticed several paint chips and scrapes, some of which were probably cause by gravel or other road debris. Others that are on the tip of the driver's side rearview mirror and the passenger side rear door appear to have been cause by scrapes, but I have never seen so much damage to paint in a new car, so it seems that this paint is prone to chipping and scraping. I have just over 3000 miles. I have not yet made any attempt to touch up the marks.
One thing I have not seen posted is a rattle that comes from the trunk. It is loud enough that I can hear it with the radio on. I havent been able to pinpoint the problem, but it may be related to the cover, which I generally leave opened. I am not convinced that this is the source because I cannot always hear it when it is in the opened position. I will continue investigating, and any input would be appreciated.
As to other messages posted, I have heard, inconsistently, the whining noise in 4th gear while coasting. However, when it is present I must turn the radio off and concentrate on listening in order to be able to discern it. Also, my rear wiper leaves a large streak across the top of the rear window. Both of this issues are minor to me, and I hope that the whining noise does not indicate serious damage to any part of the drivetrain.
I took delivery of my RX in November 2003 from Japan. My gas mileage with premium fuel had been dismal at first (14 to 16 mpg), but has been increasing. Lately I have been able to achieve consistenly over 18 mpg according to the trip computer. However, most of my driving is local, with few short highway trips.
#458 of 1867 Re: dsindm [wwest #453]
Apr 22, 2004 (6:52 am)
I think your theory about the "clunking" noise is a good try but no cigar! I have the Performance Package on my RX330 and I use the sequential manual shift all the time and the noise is still there. I believe the noise has to do with the "oil cooler tube sub-assembly" as the TSIB indicates, that the insulation is faulty and causes movement when braking or accelerating.
#459 of 1867 Manual shift.....
Apr 22, 2004 (7:35 am)
And why would you believe the transmission would remain in the gear you selected even when the engine is developing no forward driving torque??
If you intentionally downshift to use engine braking and still feel the clunk then I understand.
#460 of 1867 Re: Paint chips [02whttrib #413] [rx330owner #428] [wjboswell #456]
Apr 22, 2004 (2:19 pm)
Dealership finally repaired the chips after a lot of complaining on my side. They did a great job repairing the chips. They called it environmental damage, not a problem with the paint! I have ordered a full bra (I really hate them) but as you said what will it look like in three years without using one. I have never had another vehicle do this, I believe they have a serious problem with their paint and do not want to admit to it. Has anyone every used the invisible bra? If so how much did cost?