I am posting this query on behalf of a co-worker. He purchased a 2005 model Xli a few months ago. The car seemed allright and ran fine until its started making a weird clunking noise when its hot. Yes as soon as the reaches its optimal temperature engine starts making a "Shuk shuk" and "khatak Khatak", its like metal touching with metal.... A bit of horrible noise it is.
Thats the best i can explain. Kindly help me out!
The car does not reduce engine oil and does not over heat.
Experts opinion required, thanks in advance!