Car can not accelerate, cause and how to fix?

1. Insufficient fuel supply to the combustion chamber

The first error is due to insufficient fuel supplied to the combustion chamber, causing the vehicle to be sluggish, accelerate slowly and not be able to go fast. The reasons for insufficient fuel supplied to the combustion chamber are:

Clogged fuel filter or fuel tank strainer.Fix:Renewed.

Weak fuel pump, not enough fuel to the carburetor or injector when the engine accelerates. The reason is usually because the pump is broken, not working.Fix:Check the fuel pump, if the pressure is not up to standard, replace the pump.

Insufficient fuel supply to the combustion chamber

A clogged fuel line is also a cause of the car not being able to go fast when accelerating. So, check the fuel line from the gas tank to the engine to see if there is a leak? If not, there may be a blockage inside, clean this line with an air compressor or replace it with a new fuel line.

2. Exhaust gas cannot escape

The next error that causes the car to not accelerate is due to the exhaust gas not being able to escape, causing the exhaust gas to be pushed back into the combustion chamber, affecting the engine's power.

The cause of the blockage is usually due to the catalyst overheating, leading to internal melting, reducing the ability of exhaust gases to flow through the catalyst.Fix:Remove the exhaust pipe and see if the engine is running properly. If the engine is running properly, the fault is with this part, replace it.

Exhaust gas cannot escape.

The exhaust pipe is deformed or dented due to external impact, or clogged due to dirt inside the exhaust pipe not being able to escape.Fix:Check, replace if necessary.