Engine Knocking problem on Lexus Cygnus

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Engine Knocking problem on Lexus Cygnus

Postby MasudRM » Sun Aug 14, 2016 4:48 am

Hi gyz, this is a Lexus Cygnus 2003/2004, having engine knocking issue, no check engine lamp, no fault codes. We have already done a continuity check for every relative wiring to ecu. And also the engine has no mechanical problem.
Its been 4 weeks the car is in our workshop and the car owner is not happy with us, so I'm seeking for help..
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Re: Engine Knocking problem on Lexus Cygnus

Postby STC » Mon Aug 15, 2016 10:45 pm

I suspect something is lost in translation here. !

Is this a Diesel or Benzine
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Re: Engine Knocking problem on Lexus Cygnus

Postby MasudRM » Thu Aug 18, 2016 6:49 pm

Well it's Benzine
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Re: Engine Knocking problem on Lexus Cygnus

Postby STC » Tue Aug 23, 2016 8:50 pm

Lets be clear on this, you have a knocking noise, there are no mechanical defects and no fault codes (on your scanner).

Is it knocking or pinking ?

Does it do it stood still or when driving, going over bumps ??? (I have driven on Indian roads - Bangladeshi roads will be the same) :D :D
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