Why is my muffler making noise?
Why is my muffler making noise?
A muffler that is suddenly noisy is often caused by the driver hitting something while on the road, damaging the exhaust system. Rust can also be a culprit of holes in the muffler, resulting in a noisy muffler which gets progressively worse as the holes get bigger.
What happens when muffler goes bad?
When the muffler is damaged or has a hole in it, this causes the pre-muffled exhaust to leak, increasing the sound that comes out of the exhaust system. Although it is possible that exhaust leaks can occur before the muffler, in most cases, loud exhaust is caused by a leak in the muffler itself.
Why does my engine make a knocking noise when I start up?
The knocking on acceleration is most likely a worn crankshaft bearing, and the smoke is probably worn piston rings or valve guide seals. Valve guide seals will usually cause smoke on start up and then will disappear after driving for a few minutes; worn piston rings will smoke all the time.
What makes a Chevy Silverado make a knocking noise?
For the first 30 to 60 seconds after a cold start, the short-skirted pistons rock inside the cylinders and slap against the cylinder walls, sounding rather like a diesel engine. The knocking can be heard around the top of the engine, but is much louder if you listen in the front wheel wells or beneath the truck.
Why does my motorbike make a clunking noise?
Worn big-end shells and collapsed bearings can and will seize your engine if they expire as you’re riding along. As soon as you hear anything metallically clunky coming from the motor, hit the kill switch, come to a safe stop, and prepare for serious investigation. And probably a serious repair bill.
Where can you hear the knocking of the engine?
The knocking can be heard around the top of the engine, but is much louder if you listen in the front wheel wells or beneath the truck. After a few minutes, engine heat closes the piston/cylinder tolerances and the knock goes away.
For the first 30 to 60 seconds after a cold start, the short-skirted pistons rock inside the cylinders and slap against the cylinder walls, sounding rather like a diesel engine. The knocking can be heard around the top of the engine, but is much louder if you listen in the front wheel wells or beneath the truck.
The knocking can be heard around the top of the engine, but is much louder if you listen in the front wheel wells or beneath the truck. After a few minutes, engine heat closes the piston/cylinder tolerances and the knock goes away.
What causes the idler pulley to make a noise?
This noise is typically caused by a mechanical problem, either a worn auto-tensioner or idler pulley. The Vortec 4.8, 5.3, and 6.0 liter engines have a main accessory drive belt for the water pump, power steering, and alternator. The main belt has a GM auto-tensioner…
