Valve spring recall done... Got a few questions... - Lexus IS Forum
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post #1 of 34 (permalink) Old 09-15-2010, 08:40 AM Thread Starter
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Valve spring recall done... Got a few questions...

Hey Guys, been lurking for awhile now but you all have convinced me to purchase my first Lexus IS350. I love it!!! However, I just took it in to get the recall done and now have a few questions. Is there a break-in time or period? Is there a warranty on Lexus' recall work if something was to still happen? Also the car seems alot more sluggish all around. Will everything loosen up and break in over time to give me back some of my robbed power that I feel like is missing? Sorry guys but none of these questions were answered for me at the dealership so I am hoping you guys can help me...

Thanks
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post #2 of 34 (permalink) Old 09-15-2010, 09:01 PM
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I was also wondering that same thing. Seems like I lost power after they replaced the valve spring
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post #3 of 34 (permalink) Old 09-16-2010, 09:49 AM Thread Starter
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It is very noticable!!! I wonder what exactly is going on. Are the parts just new and "tight" maybe they just need to be broken in. At least that is what im hoping haha

Can anyone else chime in on this?
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post #4 of 34 (permalink) Old 09-16-2010, 11:17 AM
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i just got my car back from the recall yesterday. i didnt notice the loss of power as much or even the sluggish-ness. the only thing i did notice was a slight vibration in the accelertor pedal going up over 80mph. maybe because i bought the car only 2 weeks ago and havent really gotten a feel for it yet? i live in philly and as soon as i got my car back i had to drive 2 hours to harrisburg and it seemed fairly normal.
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post #5 of 34 (permalink) Old 09-16-2010, 05:00 PM
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I noticed a difference when i got my recall done about 8 months ago. If anything it felt smoother at high rpms. I didn't notice any loss of power the car is still fast as hell. Warranty is 12 months for recall work. I think the loss of power is probably in your head.
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post #6 of 34 (permalink) Old 09-16-2010, 05:20 PM
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Originally Posted by my95tsi View Post
I noticed a difference when i got my recall done about 8 months ago. If anything it felt smoother at high rpms. I didn't notice any loss of power the car is still fast as hell. Warranty is 12 months for recall work. I think the loss of power is probably in your head.
Uh... the valve spring recall didn't exist 8 months ago... are you maybe thinking of something else you had done?
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post #7 of 34 (permalink) Old 09-17-2010, 07:39 AM
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you have what they call placebo effect.

2002 AR IS300 E-Shift
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post #8 of 34 (permalink) Old 09-18-2010, 11:14 AM Thread Starter
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I really don't think so. Could it be possible that they are having other issues and are remapping the ECU's?
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post #9 of 34 (permalink) Old 09-18-2010, 02:59 PM
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I really don't think so. Could it be possible that they are having other issues and are remapping the ECU's?
No, but they would have disconnected the battery during the work, which resets the ECU to stock parameters (rather than the ones they would have learned based on your driving behavior over time).
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post #10 of 34 (permalink) Old 09-19-2010, 01:38 AM
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how long is the service take. will they give you a loaner car to drive home
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post #11 of 34 (permalink) Old 09-19-2010, 09:49 AM
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Took 5 hours for mine and yes they do give you a loaner
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post #12 of 34 (permalink) Old 09-20-2010, 08:41 AM Thread Starter
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If they disconnect the battery are radio stations lost or do our head units remember them? Reason being is mine were not earased.... and if they reset that would eliminate the driving habits suggestion
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post #13 of 34 (permalink) Old 09-20-2010, 09:49 AM
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Second gen IS do not lose radio station presets.

MOLON LABE
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post #14 of 34 (permalink) Old 09-20-2010, 01:56 PM Thread Starter
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hmm then thats ruled out. Let's say it did reset... But would that really effect the way the car pulls and feels? I wouldn't think so, but if it did how long does it normally take the ECU to remember habits, etc.?
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post #15 of 34 (permalink) Old 09-20-2010, 03:30 PM
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It learns your patterns of speed, gas and brake inputs, etc... and it adjusts to them...

This is why folks who drive fairly passively and get the ECU reset magically think their car got faster (since the slowish driving style it had learned was reset)

It's possible you're experiencing this in the opposite direction.

Generally 200-300 miles minimum for the learning to have much impact... at 500 it should have a decent clue what you drive like.

But the car is always learning.... if the slowish driver had, instead of resetting the ECU, started driving aggressively, it'd learn that pattern of behavior after a while.
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