Question about 2007 Toyota Corolla 1.6
Loud knock when engine started oil is fine
Bad crank bearings. Have you had your oil pressure tested lately. Could be a rod bearing or wrist pin, but take it easy on your vehicle till you find out what\'s going on. Timing chain may have jumped and your motor is too retarded. Retarded timing will cause lower end to knock also.
Posted on Jan 16, 2013
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Posted on Jan 02, 2017
SOURCE: Engine knock
The idle issue is normal. The idle is controlled by the ECU. There are no adjustments for the idle. Regarding the knocking noise, that could be several things, and I am hesitant to comment without hearing it. Take it to a Toyota Dealer & have a tech listen to it. We are very good at identifying noises on the service drive.
Posted on Sep 09, 2008
If the knocking is a 'tinging' sound...valves are shot. The Paseo has an issue with the head getting warped and leaking oil through the gasket, if the oil has been low too often for lengths of time the head heats and warps.
Open the oil cap and feel around inside with your finger (ensure engine is off and cooled first) rub your fingers together to feel for grit which would most likely be valve shavings. This should be easy to find since it's recently had an oil change.
Worse case scenario would be a rod broken but that would be a LOUD knocking/bonking sound and definitely expensive.
Posted on Jun 10, 2009
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