Rod knock or Main bearing knock? - Toyota Yaris Forums

yaris2010RS · 12-17-2010, 02:02 AM

my winning vote is still something to do with something touching the engine. basically unless the car is hot and at its lowest possible idle is when it only makes the sound right? that is when the engine is the roughest. check the heat sheild, i think that would also be a really good place to start.

maybe someone who knows more about this can correct me, but i would also check the flexy thingy on the exhaust pipe. maybe one of the rubber bushings for the exhaust went bad. had there been any prior work done to the car within the last 3 months?

how many km on ur car? and when was the tranny fluid done recently?

12-17-2010, 02:02 AM	#17
yaris2010RS View User's Garage Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009 Location: Angus, Ontario Posts: 1,891	my winning vote is still something to do with something touching the engine. basically unless the car is hot and at its lowest possible idle is when it only makes the sound right? that is when the engine is the roughest. check the heat sheild, i think that would also be a really good place to start. maybe someone who knows more about this can correct me, but i would also check the flexy thingy on the exhaust pipe. maybe one of the rubber bushings for the exhaust went bad. had there been any prior work done to the car within the last 3 months? how many km on ur car? and when was the tranny fluid done recently? __________________ If it has boobs or wheels sooner or later your gonna have problems with it

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