A device called the heat riser has stuck or the heat riser hose has fallen off.
could this loose part cause a metal raddling when you start to excelerate?
An exhaust restiction, like a clogged catalytic convertor
There is a strong possibility that you have either a blown head gasket or cracked cylinder head.
Probably a rotted exhaust pipe has broken off. Take the car to a muffler shop for repair.
cause so times if you crash in a rock or a tree . then the oil comes out of the pipe
If you nicked the oil pan it could cause it to smoke from engine area. Is the smoke coming from the exhaust or engine bay? If exhaust, then I highly doubt it was caused by the curb incident.
There are several things that can cause a clanging noise on your 2004 Toyota. A loose exhaust pipe is the most common cause.
The engine may backfire excessively. You may also smell a strong exhaust odor in the riding position. In worst cases, it can cause the engine to run lean.
Be sure there isn't a fuel leak that you may be mistaken for it coming out the exhaust pipe. Is it there when the car is off? IF it is still there, It may burning exceptionally rich (which I doubt), or there may be a misfire and the fuel in a couple cylinders are not burning at all. http://www.autozone.com/servlet/UiBroker?UseCase=S001&UserAction=viewSimpleDiagInfo&Parameters=info
I have an after market fuel pump on my van the you can hear from inside and outside.
Internal engine antifreeze leak what else could cause besides headgasket? there is no antifreeze in the oil it is clean
Ur exhaust....
Yep.