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Lexus RX 400h Engine Problems

52 messages,  Last post on Feb 05, 2009 at 6:59 AM

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What is this discussion about? Lexus RX 400h, Engine, SUV

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#10 of 52 Re: Stuttering/Missing [lexus400] by gagrice Jun 12, 2006 (4:15 pm)
Replying to: lexus400 (Jun 12, 2006 1:26 pm) I am being shaken to pieces between 37-42 mph   That sounds bad. Most of our surface streets are 35-40 MPH. Does your state have a Lemon Law. If you have all the dates you were at the dealer I would try to invoke the law. They may be trying to jack you around till the warranty expires. I would get a signed statement each time you take it in, stating they are working on the problem. Keep us posted. Replies to this message: lexus400 (Jun 12, 2006 5:23 pm)
#11 of 52 Re: Stuttering/Missing [gagrice] by lexus400 Jun 12, 2006 (5:23 pm)
Replying to: gagrice (Jun 12, 2006 4:15 pm) Thanks, I even told them that I was going to come into the service center every week. The manager asked why I would do that-I said that there was some law called a lemon law where I had to be in for something like 3 visits with them unable to fix the car. He flat out told me that I could tell them that and that they would just say that they couldn't duplicate the problem. I really fell like they are playing cat and mouse with me. My husband was ready to buy a new Lexus, and that has certainly been put on hold or maybe even out of the question. Thanks for the advice. I am trying to move on with the National Center for disputes but the guy that is supposed to return a call within 24 hours won't respond either. Guess next time I should buy a hunk of junk then I will expect a hunk of junk.   Thanks for your response and I will keep you all posted.
#12 of 52 Re: Stuttering/Missing [lexus400] by doneby2010 Jun 16, 2006 (12:03 pm)
Replying to: lexus400 (Jun 12, 2006 1:26 pm) Have had 400h for 6 months (and 5000 miles) and don't have this problem. The car has a smooth ride and has no vibrations similar to what you described.   sorry... Replies to this message: lexus400 (Jun 21, 2006 9:51 pm) lxpatel (Jul 08, 2006 8:53 pm)
#13 of 52 Re: Stuttering/Missing [doneby2010] by lexus400 Jun 21, 2006 (9:51 pm)
Replying to: doneby2010 (Jun 16, 2006 12:03 pm) Consider yourself one of the lucky ones. My dealer told me 2 weeks ago that he has 6 of them with this issue and that mine is the worst one that he has. Hope that they will address this issue and resolve it soon. I love the hybrid idea but need to be able to drive between 37-42 without nibbles/vibrations. Replies to this message: lxpatel (Jul 08, 2006 8:53 pm)
#14 of 52 Re: Stuttering/Missing [lexus400] by lxpatel Jul 08, 2006 (8:53 pm)
Replying to: lexus400 (Jun 21, 2006 9:51 pm) I haven't had any problems with it either, 8k miles and 8 mos in service. Great gas mileage on highway, got 27 on trip from LA to San Diego and back, 80+ all the way.
#15 of 52 Just want to know by jordanf Jul 16, 2006 (7:35 pm)
Could someone tell me the difference between an interference and non-interference engine Replies to this message: pf_flyer (Jul 17, 2006 8:49 am)
#16 of 52 400 H nibble by lexus400 Jul 17, 2006 (5:49 am)
Well, the car still nibbles with 10,000 miles. They said the computer fix would be here July 4th week, it is the 17th and now they are saying it takes 30 days to get it from Japan-but I will be one of the first to get it.   My father drove the car after taking up to the airport, and he said that he thought that he was going to get sick from the rocking/pulsing that was going on around 40 mph.   I have called an arbitrator to start process and if they don't have a soulution very soon, I guess that is the next step. I should have given them the car back the first time because it was within the 30 day, but I believed them when they told me they were working on a fix. I thought that it would not be the right thing to do to give them the car back and demand my money back although at that point I had the legal right to do that. I thought that I was standing by my word to buy the car and that they would stand by their word to deliver a car worthy of the $55,000 price tag and Lexus name. Guess they are trying to prove me wrong and a fool! Replies to this message: katzjamr (Jul 22, 2006 3:34 pm)
#17 of 52 Re: Just want to know [jordanf] by pf_flyer HOST Jul 17, 2006 (8:49 am)
Replying to: jordanf (Jul 16, 2006 7:35 pm) In an interference engine, the valves open far enough into the cylinders that they "interfere" with the piston's space. The interference design actually improves the efficiency of the engine due to the wider opening valves, but if you run into a problem and the timing is off, the valves can actually strike the pistons, which is NOT a good thing at all.
#18 of 52 Computer replaced and My "Nibbles" are GONE! by dcaenen Jul 21, 2006 (1:41 pm)
Had my Hybrid computer replaced with the new one yesterday, and the Nibbles are completely gone. If this bothers you too, I highly recommend you check it out. I guess there is no Service Bulletin.... my dealer didn't know about it, but the Toyota "Field Mechanical Specialist" did... Took 2 Days to get the new computer though... It was worth it.   Cheers. Replies to this message: wth18359 (Jul 27, 2006 7:22 am)
#19 of 52 1998 Dodge ram 1500- 5.2 liter by swift725 Jul 21, 2006 (3:42 pm)
I love this truck but now when i start it in the morning even if its warm outside or cold, it runs real rough the first 5 minuets or so and hesitates. Replaced coil, plugs, rotor, throttle positioning valve, idle air sensor, and had injectors sent out and cleaned with new seals and screens. ALSO when truck is parked after runing to work or the store, i get back in it in about an hour and its hard starting. But if it sits all night it will start great just run rough for a bit. Or if I start it after its been hot or ran it before 45 minuets to an hour it will not be hard starting.... Please Help?? THX

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