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Engine knocking during acceleration when hot

Tiny
IQBAL1
  • MEMBER
  • 2009 SUZUKI LIANA
  • 4 CYL
  • FWD
  • MANUAL
  • 35,000 MILES
Knocking sound coming during acceleration but only in hot.
1. Cold engine is running fine and
2. With Hi octane running fine even in hot condition.

Possible causes?
Monday, December 6th, 2010 AT 5:48 PM

2 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Without understanding the type and source of the noise, it is not possible to provide any comments.

Is it consistent with engine speed?
Does it occur at a constant rate?
Does it change with abrupt or constant throttle opening?
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Monday, December 6th, 2010 AT 9:03 PM
Tiny
USMAN900191
  • MEMBER
  • 1 POST
I have the same problem. It is consistent with the engine speed as well as if I accelerate it in nuetral. Moreover, I have also get it fueled with hi octane, the knocking becomes less but its still there.

Kindly guide me what to do.
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Monday, December 21st, 2015 AT 10:57 AM

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