Question about 2001 Toyota Corolla
The timing of the motor is wrong.ie.the spark timing in relation to the pistons.With the knocking,this usually relates to the timing being to far advanced.As the only real adjustment that can be made is the timing,get it retarded slightly.A very simple job with a timing light.The marks on the crankshaft pulley are easier to see with a bit of white chalk on them.Whilst doing this,check the timing auto advance by bringing the revs up and you should see the marks on the pulley move.If so.All is correct.(when you set the timing,the vacuum advance hose has to be removed so as not to give a false reading)I hope this is of help
Posted on Sep 27, 2009
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Posted on Jan 02, 2017
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