Toyota Motor Corporation Lexus and Toyota Hybrids

2010 Prius severe knocking and shaking at startup

  #1  
Old 04-18-2019, 11:09 AM
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Default 2010 Prius severe knocking and shaking at startup

I have a 2010 Prius that will randomly shake and knocking for a few seconds upon starting then seems to smooth out after a few seconds. Anyone else experience that?
 
  #2  
Old 04-18-2019, 11:21 AM
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Posts: 3,042
Default Re: 2010 Prius severe knocking and shaking at startup

In no particular order:

Plugs
Coils
Dirty throttle body
dirty MAF sensor
bad gas

Plugs and coils will usually show P030X (x=0, 1, 2, 3, 4 in any combination) codes and/or a flashing CEL.
 
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