I have a 1993 Lexus SC300 V6, 2JZGE engine. Just R&R another engine with about 70k miles. Upon starting enigne from cold start, the engine starts right up but has a sort of rattling sound and then it goes away. After it warms up, the engine idles perfectly, and runs well although I do get a slight "pinging" noise upon hard acceleration. Can you tell me what causes the high idle and rattle and is this connected to the "pinging" noise? I just replaced my CAT converter thinking that was the problem but both of these issues persist.
Wednesday, March 23rd, 2011 AT 9:02 PM