It can be unnerving to hear a rattling noise in a car when accelerating or driving in general. Such an unusual noise indicates a malfunctioning car part which hinders a smooth ride. In such cases, it is important to probe into the main issue and get timely assistance.
To cater to this, we have listed some of the potential causes of why a car rattles when accelerating and how it can be prevented.
CAR RATTLES WHEN ACCELERATING – COMMON CAUSES AND HOW TO FIX THEM
Here are the potential causes of why a car rattles when accelerating. We have also provided solutions for timely repair. These solutions will help to overcome any major problems which is crucial since it is prohibited to drive a noisy car in the UAE which exceeds 95 decibels.
LOOSE EXHAUST PARTS
When accelerating, rattling noise in the car usually stems from problems within the car exhaust system. Common culprits include loose or broken exhaust hangers, damaged pipes, or exhaust manifold leaks. Although all of these parts are bolted together, they can become loose and worn out over time, creating a rattling noise in the car when accelerating. It also leads to a rattling noise in the car muffler.
HOW TO FIX IT
Rattling noises during acceleration can be caused by problems within the exhaust system. Inspect the system for symptoms of a failing exhaust manifold, loose or broken exhaust hangers, or damaged catalytic converters.
Depending on the specific issue, one may need to replace or repair the faulty components. A professional inspection is recommended to diagnose and address exhaust system problems.
DAMAGED CATALYTIC CONVERTER
When a catalytic converter becomes damaged or deteriorated, the internal honeycomb structure breaks apart or becomes loose. As a result, the broken pieces rattle and vibrate as exhaust gases pass through the converter. This rattling noise in car when accelerating becomes more noticeable during acceleration when the exhaust flow and pressure increase.
HOW TO FIX IT
Ensure the new catalytic converter is compatible with the vehicle’s make, model, and engine specifications. Slide the new converter into place, aligning it with the exhaust pipes. Tighten the clamps or bolts securely to hold the converter in position.
DAMAGED/LOOSE HEAT SHIELD
An exhaust heat shield is bolted to the exhaust system to absorb the heat coming from the parts such as the muffler or exhaust manifold. They are located under the car to protect sensitive components from excessive heat.
Over time, they can become loose or damaged. When they interact with parts of the exhaust system, one notices a rattling noise in the car when accelerating.
HOW TO FIX IT
Heat shields are metal plates located under the car that protect sensitive components from excessive heat. Over time, they can become loose or damaged, causing rattling noises. Reattaching or replacing the loose or damaged heat shields can eliminate the rattling sound.
WORN-OUT ENGINE PARTS
In some cases, a rattling noise may indicate a more severe problem with the engine itself. When combustion chamber components, such as pistons, valves, or timing chains, become worn or damaged, they result in unusual noises. That said, a bad bearing or a collapsed lifter are some common causes of why a car rattles when accelerating.
HOW TO FIX IT
Engine mounts are designed to secure the engine in place and dampen vibrations. If they are worn out or damaged, they allow excessive engine movement, leading to rattling noises. Replacing the worn-out engine mounts should solve the problem. Consult a mechanic for proper diagnosis and replacement.
LOW OIL LEVEL/LOW OIL PRESSURE
There are many causes of low engine oil pressure which cause unusual noises in a car. When the oil pressure drops, a rattling noise is observed from the crankshaft bearings. As a result, it damages the engine. Moreover, if the engine oil drops from a certain level, it hinders the working of the metal parts.
HOW TO FIX IT
Check the oil level and install a new filter if needed. Moreover, if the oil level remains low, it may be due to a hidden leak. It could also happen due to a blown head gasket.
DAMAGED SUSPENSION PARTS
A car suspension system is responsible for providing a smooth and stable ride by absorbing shocks and vibrations from the road. When suspension components such as struts and suspension springs become worn, loose, or damaged, they produce rattling sounds.
HOW TO FIX IT
To fix this issue, it is important to opt for an inspection service. There are several car care inspection and service companies in the UAE. One can also opt for dubizzle inspection services for cars to get detailed information about their car’s condition.
FAULTY DRIVING BELTS
Drive belts, such as the serpentine belt, can become worn, cracked, or stretched over time. A loose or damaged drive belt can produce rattling noise in the car when accelerating.
HOW TO FIX IT
A loose or damaged drive belt can produce rattling sounds when accelerating. Inspect the drive belts for signs of wear and replace any that are worn out. Follow the manufacturer’s specifications for the correct replacement procedure.
FAULTY IGNITION SYSTEM
If the rattling noise is accompanied by a decrease in engine performance or misfiring, the problem may lie within the ignition system. Faulty spark plugs, ignition coils, or ignition timing cause engine vibrations due to which the car rattles when accelerating.
HOW TO FIX IT
If the rattling noise is accompanied by a decrease in engine performance or car engine misfiring, the problem may lie within the ignition system. Faulty spark plugs, ignition coils, or ignition timing cause engine vibrations and rattling noises which should be replaced promptly.
All in all, these are the common causes of why a car rattles when accelerating. We have also provided solutions to solve these problems. Therefore, if you are facing such problems frequently, it is a viable option to change your car. Go through these used cars for sale in the UAE to purchase your next ride.
Stay connected to dubizzle’s auto blog for more on car problems and their solutions.
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