Question about 2003 Lexus ES 300

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Hesitation, surging forward and it feels like it

Hesitation, surging forward and it feels like the car changes gears on me while coasting along at a speed of about 30 miles per hour. It sometimes feels like I've been hit from behind. I've had the problem since I purchased the car and the Lexus dealership basically promised that a fix was coming until I was out of warranty. Of course it never did. I 've contacted customer satisfaction a couple of times, and more recently again about two weeks ago. I was told that they'd be getting back with me in 24 hours. They haven't. I was told that it's a smart car and if someone else drives it, It may not perform for me. That the computer program has an issue. They've run the so called fix for it, but the car only performed worse that before. I'm afraid to sell it because of liability to me. I don't think it would meet anyones approval anyway.

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In California we have a lemon law, hopefully where you live. Look into it

Posted on Feb 04, 2010

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The surging and shifting up and down could be from a few engine management problems, from a vacuum leak to a mass airflow sensor, the throttle position sensor, cam or crank sensor... and the list goes on, i guess to start, is the check engine light on? of it is, have someone run the codes to check the basics,
Good luck with the lexus dealership, do you have anything documented? if not you may be stuck. also check to see if there are any TSB's (tehchnical service bullitens) there may be one in there that covers a computer problem or a driveability problem. if you dont have any luck there, check with different parts places in town, they sell to the shops in your area, ask them who they would reccomend then go talk to the mechanic and tell him your woe's.
As far as the "smart car" statement, uuuh no. I dont think so. they have (Dual Variable Valve Timing with Intelligence) on some models. which is a fancy way of saying that on a cold day it starts up better because the computer adjusts the valve timing. this is not artificial intelligence that learns the drivers habits, DNA, or how heavy their foot is.
if you sell it sell it "as is" and you wont/cant be held liable. you may not get all of what it is worth though

Posted on Feb 04, 2010

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