Why does my exhaust rattle when I stop?
Why does my exhaust rattle when I stop?
What Causes a Muffler to Rattle? A loose bracket, rubber hanger or connector, or one that is badly corroded, can allow a muffler to rattle as the exhaust pipe bangs against another part of your vehicle when you accelerate or drive on bumpy roads, or even when you first start the car and it’s stationary and idling.
What are the symptoms of catalytic converter failure?
Driving with a Bad Catalytic Converter (and other Bad Catalytic Converter Symptoms)
- Your Check Engine Light is On.
- A Rattling Noise In the Engine.
- You’re Getting Fewer Miles Per Gallon.
- Your Car Jerks Forward, Loses Fuel During Acceleration, Or Stalls Out.
- Engine Misfires.
Why does my car rattle when it idles?
There are several causes for the engine to rattle while idling. With your car, the heat shield or an under engine shield is most likely. The other causes are the AC compressor clutch, idler pulley, or belt tensioner. When the heat shields become loose, they can make a flapping noise when the vehicle is moving.
What causes exhaust gurgle?
Blown Head Gasket: A blown head gasket can allow exhaust gases to enter the coolant, which becomes trapped in the system and can cause a bubbling or gurgling sound during operation. Again, this creates air pockets in your system, which cause the gurgling sound.
Can a clogged catalytic converter cause rough idle?
A clogged converter can cause rough idle, engine hesitation upon acceleration, weakened power, hard-starting and, in some cases, a no-start condition. This symptom can be diagnosed by using a vacuum gauge on the intake manifold, or an exhaust back-pressure pressure gauge before and after the converter.
What is a Decat?
A Decat / De-Cat or Decat Pipe is simply a straight piece of tube that is used to replace a catalytic converter. Modern engines have a sensor positioned after the catalytic converter which sends information back to the ECU instructing the ECU how to control the fuel/air mixture.
Why does my car sound like it’s running when I run water?
The sloshing sound you hear, when your vehicle starts, most likely is air trapped in the heater core. The solution to this problem is to have the coolant system flushed. There is the possibility, the AC system refrigerant is low. This could be result of a leaking AC compressor.
Why is my car making a rattling noise when idling?
One common problem that will cause a rattle at idle is a failing hydraulic valve lifter. The lifters are small parts that open and close the engine valves, activated by oil (hydraulic) pressure. If you hear a “clack-clack” kind of rattle when you start your car’s engine, it could be a sign of piston slap.
