engine cranking

[DARK AGE 53]

Originally Posted by wafic

I change oil at the toyota dealer and I guess they use 10w-30 lexus oil.
as for the noise im sure it comes from the engine it only makes the noise after driving long distance in traffic and i guess it sounds like cracking as if the oil is getting thinner. plz advise

I don't think it's the oil, my Yaris uses 5w-30 but 10w-30 would be fine also. As for the the cranking noise does it sound like the starter is trying to engage, seems like someone here had that problem ( there Yaris had the manual tranny )? Here's a few idea's, serpentine belt, idler pulley.