Could be from many sources. You will have to do some detective work to locate the source. Some possibilities could be, a loose heat shield on the exhaust system, bad tensioner or idler pulleys, bad water pump, bad alternator, worn valve train parts,
The rattling and whistling on the 94 Explorer sounds like an exhaust problem. Check the exhaust for any leaks or loose connections.
There is a baby under the hood.
Inspect the catalytic converter heat shield.
The most common cause of the whistling in a 2003 Impala is a vacuum leak. Any of the lines under the hood could be causing the noise.
the muffler rattling? the muffler rattling? the muffler rattling?
Many exhaust systems have a hanger located near or on the transmission, climb under there and sheke some things to see if you can replicate the noise, it could even be the heat shield for the catalytic converter coming loose.
Loose bearings is what I had in my '88 Silverado. Made the same rattling noise; bearings in the front were loose. Your timeing may be to far advanced. the favourite thing normally is a loose or broken heat shield that can be repaired fairly simply.
I had this same problem so I opened the hood and come to find out there was migit materbating under it
The sway bar end links could be damaged on a vehicle that is making that noise. Also, check the dust shields on the front brake assembly.Ê
It could just be the heat shield on the under side of the catalytic converter.
Rattling noise is probably just a loose muffler, muffler pipe, or a loose heat shield that is hitting chasey or something else.
If the whistling noise is coming from under the hood its your belt, that's what's wrong with my Sequoia. If its not coming from under the hood its probably a crack in the seem of your window.