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When an engine mixes the air and fuel needed for combustion, there is a chance that the mixture has too much air. When that happens, the mixture is called lean mixture and the powertrain control module (PCM) will set fault codes. In Ford vehicles, there are two codes for this occurrence, which are Ford P0171 for cylinder bank 1, and P0174 for cylinder bank 2. A code reader or scan tool can be connected into the vehicle diagnostic connector. When …

EVAP, which is a shortened name for Evaporative Emission Control System, is a mechanism used in an engine to prevent the leaking of gasoline vapors from the fuel system and fuel tank into the atmosphere. The EVAP system is built in a way that it doesn’t need constant maintenance, but occasional damages can happen and turn the check engine light on. There is also a possibility of a vehicle failing in an OBD II plug-in emission test. On vehicles that …

Four basic every engine need to start: good compression, sufficient cranking speed, fuel and adequate ignition voltage. Now, you know if an engine fails to start, assuming one of requires essential ingredients is missing. The difficult part is to judge which one that missing. You need to analyze more to find the source the problem. Probably you are dealing with a battery or starter problem when the engine won’t crank. Assuming starter is the source of the issue, check if …

What should do when the Temperature Warning Light is ON Your engine could be damaged when you insist on driving the vehicle when the temperature warning light is on. When the warning is is on, it tells the engine is running too hot (overheating). If the cooling system is working normally and it filled properly, the engine should not overheat. So, stop the driving and pull over then shut off the vehicle and wait for the engine to cool down. …

Spark Knock is a pinging noise, rattling or knocking which might be heard while the engine is working hard under load (passing on the highway, towing a trailer, driving up a mountain, etc.) or is accelerating. When the fuel is detonating it called spark knock. Detonation is when the fuel explodes rather than burning. It happens when there is compression and to much heat in the combustion chamber. It’s comparable to preignition, but preignition is when the fuel ignites before …

Typically service of life (car battery life) for wet cell lead-acid car batteries about 4 to 5 years, and in hot climate area sometimes have less limited service life about 3 years. When end of life service life of battery has been reached, in some case on cold weather the battery won’t provide enough cranking amps to start the engine, or it won’t hold or accept a charge anymore. When battery has 5 to 7 years old, most of them …

Have you ever experienced with an car overheating (engine overheating)? 195 to 220 degrees Fahrenheit (90 to 104 degrees Celsius) is a “normal” temperature range where the most engine operates. To get proper emissions control, good economy and fuel performance, it is important to have a relatively constant operating temperature. However the engine will overheating when the engine to run hotter than normal and it will causing a problems. Water and ethylene glycol antifreeze is a mixture content (with a …

When the engine losing oil pressure, it will caused the indicator light of engine oil pressure warning is on. If engine losing oil pressure, it can causing the engine severely damaged, so stop driving and turn off the engine. How The Low Oil Pressure Light Comes On And Off There many factors that most likely caused the oil pressure gauge, low oil pressure warning light comes on and off, defective sending unit of oil pressure, warning light switch, or low …

Hesitation is when the engine stumbles, misfire or when you step on the throttle or you accelerate it lacks of power. The issue occurs most generally due the air/fuel mixture is going lean or isn’t being enriched properly. Or when the air/fuel mixture going to lean or the engine comes under load, the ignition system is weak and misfiring. There more air will be suctioned by the engine when you step down on the accelerator and the throttle opens. The …

When your car battery dead, your engine won’t crank. If you want your engine start, you need to recharge the battery until it fully charged or you need someone to give a jump start. Unfortunately, the same problem happen again on next day. The engine won’t crank due the battery has run down. Why A Car Battery Runs Down Below some reasons that caused the battery run down. Check Battery Voltage And State Of Charge The alternator (output of the …