Rattling noise coming from the driver's side front end

drivers side
well it can be ignored
start with anything driven by the serp belt

a tensioner bearing or idler bearing is a probable cause of the noise

how do you see anything in that engine bay

Sounds like the flywheel might be loose or broken.

have the front suspension checked out
most likely a failed suspension arm rubber has failed
check fro failed engine mounts

Check to see if one of your brackets holding the exhaust pipe has come loose. That'll make a rattling sound - especially if it towards the end by the tailpipe. When you're accelerating - more air is forced thru your exhaust at a faster rate, so it's not moving as much as when you're sitting still and the truck is just at an idle with less air/exhaust moving thru the tailpipe. If it's only making the noise while the truck is stationary & the noise stops one the truck is moving - that pretty much rules out anything to do withe the drive-train or suspension. You are sure the noise is from the back & not coming from under the hood? If under the hood - check your oil level ASAP.

if the noise is coming from the bottom end of the motor then you have either bad connecting rod bearings or bad crank bearings.if when you snap the throttle you hear a double knock then its connecting rod bearing if not then its crank bearing.a collapsed piston can sound low in the engine and its usually a dull knock noise.if you have the engine running and the noise is there and you pull off one plug wire at a time(and reconnect it after checking) and the noise goes away or mostly goes away with the wire unhooked then the cylinder that the noise changed is the cylinder that has a bad piston.

Hi R,
If I understand correctly the sound you're describing could be something known as 'pinking' It occurs when the ignition timing is too far advanced and can damage the engine. Make sure that you're using the correct octane rated fuel in your vehicle and thereafter take it for a tune. Whoever does it, should set the timing at 10 degrees BTDC. To set the timing correctly, open the diagnostic socket in the engine compartment which when standing facing the front of the car will be on your right and the vehicles left. Open up the cover and bridge between T and E1 (A small directory is inside the same cover, which will help you find the correct connections) Only when the bridge is connected can the ignition timing be set correctly. This should be carried out with a strobe timing light with the engine running.
Regards Johngee10

The rattle is likely a loose shield or a bad catalytic converter. As for the loud banging, Have you checked the front U-joints behind the brake rotors. As for the Reverse noise? Auto or stick shift?

lots of parts, alternator, water pump, a/c compressor lower area . many of them are on the serpentine belt. the pulleys and tensioner can make rattles. you need to confirm which part has the rattle or vibration, use a stick or screw driver. touch one end on the part and the other near your temple...any noise/vibration coming through?

fiind which one it is. lower noise on the crank can also sound like its coming from up front and that's a deep rattle.

That noise sounds to me like a Ball Joint problem. I would check to see if you have fittings to grease the front suspention.

Good luck, Allen

Hello! If the humming noise is speed related(gets louder as vehicle speed increases)check front wheel bearings. If the noise goes away when turning one way or the other then it will most likely be in the front wheel bearing. If you turn the wheel(while moving)to the right and the noise goes away it is on the right side. If you turn the wheel to the left and the noise goes away its on the left side. Hope this information helps!