Car Diagnostic

When the car makes pinging noise while driving , the noise usually indicates a problem related to the engine. However, there are other causes like the use of cheap low octane gasoline or may also cause by driving the car in high altitude areas. Reasons why engine makes pinging noise while driving (1) Use of low octane gasoline (2) Driving at high altitude area (3) Engine related problem Use of low octane gasoline Low grade or "cheap" gas is generally considered to be gas with an octane rating of 88 or below. The bad thing about low-grade gas is that it burns too easily. Put another way, low-grade gas is too combustible. You see, the gas that burns too easily will, under certain conditions, self-ignite before the piston reaches the top of the combustion chamber... this is known as pre-ignition. When pre-ignition occurs, you'll hear a pinging sound. Generally, pre-ignition only occurs under conditions such as when the engine is under stress and/or really hot. Whe...

When a car is shaking while idle, it means that the engine is misfiring in one or more cylinders. Engine Cylinder Reasons why the car is shaking while idle

When temperature gauge reads hot during traffic it means that there is something wrong with the fan. This particular problem suggests that there is something wrong with the fan. You see the main purpose of the fan is to keep the engine cool when the vehicle either moving slowly or stop such as in prolonged slow traffic. The reason why temperature gauge reads hot during the traffic

If the temperature reads hot after the engine is started the possible reason is a lack of coolant, collapse radiator hose, bad water pump, or a bad thermostat. Possible reasons why temperature reads hot after engine start

The brakes produce squealing noise during braking this is because of two possible reasons, first is the noise comes from the brake pad wear indicator and the second is because of the high-frequency vibration. Possible cause of squealing noise on brakes 1) Squealing noise comes from brake pad wear sensor Besides squealing noise that you heard observe also if the brake pedal is fairly low when the pedal is depressed. If this is the case then the squealing noise is produced by the brake pad wear sensor. When the brake pedal is fairly low it also means that the brake pad is also low. Brake pads consist of a thin piece metal that is connected to the pad called the wear sensor. If the pad is getting low the wear sensor will start to make contact with the brake disc and this will produce squealing noise that you probably have heard to warn you that the pads are extremely low and needed to be replaced with a new one. 2) High-frequency vibration of brake pads causes the squealing...

While the engine is running, the engine produced high pitch squeal. This possible reason is because of a worn drive belt, faulty alternator, or bad steering pump.   Possible cause of high pitch Squeal from engine Worn Drive Belt The drive belt is the one that drives various engine accessories. When the drive belt worn out or otherwise damaged it will produce a high pitched squeal sound while the engine is running. Faulty Alternator Another possible cause of high pitch squeal sound coming from the engine compartment is the faulty alternator. Usually, the bearing inside the alternator is worn out if the bearing is worn out it will produce squealing noise especially when the alternator spins. Bad Steering Pump The bad steering pump is also a possible cause of high pitched squealing when the steering pump fails it will produce sound especially when turning at low speed. However, the possibilities of the steering pump as the cause of high pitch squeal are very rare. The first thi...