gryphix Posted February 14, 2008 Share Posted February 14, 2008 The noise and clunk I get during the transition from electric to gas seems to be getting worse. It's noticeable during both hard and light acceleration. I drove a friend's 600h recently and there was zero noise. It was silky smooth and the transition was hardly noticeable. Now, I realize that it's double the price, however, isn't it essentially the same system? Shouldn't my vehicle be as smooth and as quiet? I made an appointment with the dealer next week. My service advisor said that it seemed normal, but they would take a look at it, of course. I'd like to hear from other 400h owners about this since I have no basis for comparison. Is it normal? Am I being paranoid? Quote Link to comment Share on other sites More sharing options...
thelazydogsback Posted February 14, 2008 Share Posted February 14, 2008 I don't notice ICE transition at at when under speed -- if you can feel it then, I'd say something is amiss. At a standstill when the ICE comes on to keep things warm, sometimes there is a small jolt, when can be disconcerting if my foot is only lightly on the brake (just enough to stop the car from rolling on a flat surface, but not fully depressed) as the car can jump. Although it's only a few mm, it's disconcerting nonetheless. On a related note, I've noticed that unless I fully depress the break, the energy indicator shows the it's running the front elec motor from the batts, even though the car isn't moving - fully depressing the brake will stop this process. mike The noise and clunk I get during the transition from electric to gas seems to be getting worse. It's noticeable during both hard and light acceleration. I drove a friend's 600h recently and there was zero noise. It was silky smooth and the transition was hardly noticeable. Now, I realize that it's double the price, however, isn't it essentially the same system? Shouldn't my vehicle be as smooth and as quiet? I made an appointment with the dealer next week. My service advisor said that it seemed normal, but they would take a look at it, of course. I'd like to hear from other 400h owners about this since I have no basis for comparison. Is it normal? Am I being paranoid? Quote Link to comment Share on other sites More sharing options...
gryphix Posted February 14, 2008 Author Share Posted February 14, 2008 Under speed, I don't notice it much at all. I feel it most when accelerating from a complete stop. What about yours? Do you experience a smooth transition when you take off from a light, or can you feel it kick in? I don't notice ICE transition at at when under speed -- if you can feel it then, I'd say something is amiss.At a standstill when the ICE comes on to keep things warm, sometimes there is a small jolt, when can be disconcerting if my foot is only lightly on the brake (just enough to stop the car from rolling on a flat surface, but not fully depressed) as the car can jump. Although it's only a few mm, it's disconcerting nonetheless. On a related note, I've noticed that unless I fully depress the break, the energy indicator shows the it's running the front elec motor from the batts, even though the car isn't moving - fully depressing the brake will stop this process. mike Quote Link to comment Share on other sites More sharing options...
Jim Clark Posted February 15, 2008 Share Posted February 15, 2008 I feel ours kick in but there's no significant "clunk". Quote Link to comment Share on other sites More sharing options...
richard4u Posted February 16, 2008 Share Posted February 16, 2008 i have a 2007 rx400h i rareley am aware of the ice going on or off if it is a cold start i sometimes feel a very slight clunk almost never aware of it when driving slow or fast i think the dealer should let you test drive another one same as yours must be something that can be fixed Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.