so ive notice a slight tick coming from my drivers side lower end. i checked the flage on the exaust and couldnt notice any leaks. the tick sounds like its directly above it. i can hear it in the cab and gets louder with acceleration. im sure ppl hear it when i drive by to. the oils good. along with everything else. the tick happens hot and cold. i can hear it at idle to. any ideas what this is? ive heard exhaust manifold but not to sure. i dont wanna take that off at all. has anyone else had this happpen. any imput is appreciated. thankyou