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GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Acceleration problem

Old Mar 2, 2018 | 03:15 PM
  #1  
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Default Acceleration problem

hey guys so I’m having a problem with my 99 gs300 that I just can’t seem to figure out. When Accelerate from a complete stop it just drives normal but if I’m just slowing down and try to speed up again it will struggle and it sounds like the engine shakes a little,(from what I can hear from the exhaust). I have no cel and I’ve just been replacing parts in hopes that something helps but I’ve had no luck, if anyone else has experienced this problem please let me know what fixed it
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Old Mar 2, 2018 | 03:29 PM
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try cleaning the MAF sensor. This worked for me
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Old Mar 2, 2018 | 06:08 PM
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I already tried that and it still doing the same thing
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Old Mar 2, 2018 | 06:17 PM
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How old is your air filter? You'd be surprised what a dirty filter can do to performance.
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Old Mar 2, 2018 | 06:38 PM
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That’s next on my list to replace along with an oil change but I just wanted to see if it was something that I may have not thought about
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Old Mar 4, 2018 | 11:13 AM
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You probably need a new MAF.

https://www.clublexus.com/forums/gs-...blem-help.html
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Old Mar 4, 2018 | 01:08 PM
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Is it not downshifting? Or the converter is staying locked up?
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Old Mar 5, 2018 | 03:25 AM
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check your fuel system
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