Tips and Tricks

Diagnosing Common Engine Accelerating Noises: The Top Tips

For most of you, your car is not just a mode of transport, but an extremely valuable possession. You keep it squeaky clean and updated, send it to get serviced regularly and all the available software updates are made as soon as possible.

However, while you ensure that your baby is well taken care of, there is no denying that your car is undergoing regular wear and tear and apart from that its components may develop some faults as well.

Many of us wonder why the car’s engine is making that dreaded noise when you’re accelerating. The answer to this could be many. There might be a minor flaw or a major problem. Let’s have a look at some of the common noises and the reasons behind this issue:

Diagnosing Common Engine Accelerating Noises

  1. A roaring noise that increases with acceleration:

Generally, the first thing that people do when they notice this problem is checking the exhaust system of the car. It could get damaged due to numerous reasons like the usual wear and tear, the moisture causing it to rust or other such problems. In such a case have the exhaust system replaced to take care of the problem.

Another cause could be the transmission issues. If you drive an automatic, you will notice how the vehicle is not easy switching gears, or, in the case of a manual model, the slipping of the clutch points out to transmission problems that could be the reason for that annoying noise on accelerating.

  1. A squealing or chirping noise:

Although this problem is rampant in the colder regions, the squealing or chirping noise on acceleration could be because of the belts.

The car will squeal if the belts are worn or even loose when turned on you will need to check the belt timing when the fan belts come into the picture. In other words, it is time for you to replace the belts.

  1. Pre-ignition or pre-detonation:

Many people complain that they hear a rattling or a pinging noise when they accelerate the car and one of the reasons could be because of the air-fuel mixture getting prematurely ignited due to the compression heat as the piston moves up the compression stroke.

Pre-ignition or pre-dentation occurs if the ignition happens before the piston can reach the compression stroke’s top. If this happens, it can damage the piston, connecting rods and the valves.

The pre-mature ignition creates pressure waves in the cylinder and collides with its upward movement. That is why you hear the noise and the aforementioned damaging occurs.

  1. Whirring noise:

It is common for drivers to complain that the whirring noise just gets worse as they accelerate and this could be because of the low fluid level conditions in the power steering.

Generally, lower levels of the fluid point out to a possible leakage. Little fluid levels in the pump create a whirring noise that gets stronger with the engine speed.

It could the O-ring seals or even the lines. You need to get a trained mechanic to do necessary repairs.

  1. Crankshaft Bearing Noise:

If there is a low oil pressure, then you run the risk of having the bearing surface as well as the crankshaft damaged. This is also why you hear that rumbling or thumping noise in your car as you speed up. If this is the case, don’t put the engine in the ignition. Instead, first remove the oil pan and inspect the crankshaft bearings.

These problems can be fixed by a mechanic and you can save your engine from all the damages.

Since the crankshaft rotates the bearing shells within, be prepared for a major engine failure if you continue using the engine when the problem persists. Such repairs can burn a big hole in your pocket as well.

Bottom line:

The engine noise could be due to various faults and problems. The model and make of your car also have an important role to play. There is not one fixed answer to this problem. The best advice would be for you to get it examined by an expert.

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