Home / Engine Related Issues

Engine Related Issues

When Your Engine Car Won’t Start Or Crank, What Would You Do

When Your Engine Car Won't Start Or Crank, What Would You Do

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 …

Read More »

Dashboard Lights Show Engine Temperature Warning Light On

Dashboard Lights Show Engine Temperature Warning Light On

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. …

Read More »

Spark Knock (Detonation): Engine Knock Under Acceleration

Engine Pings or Knocks When Accelerating or Lugging | Spark Knock (Detonation)

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 …

Read More »

Car Overheating

Car Overheating

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 …

Read More »

Oil Pressure Sensor: Low Oil Pressure Warning Light Comes On And Off

Oil Pressure Sensor-Low Oil Pressure Warning Light Comes On And Off

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 …

Read More »

Engine Hesitation Problem: Car Hesitates When Accelerating

Engine Hesitation Problem Car Hesitates When Accelerating

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 …

Read More »

Failed Emission Test Codes: Most Common Trouble Codes

P0300 - Engine Misfire Detected (random Misfire)

Based on Illinois Environmental Protection Agency data test, the most common trouble codes that cause an OBD II plug-in emissions test failed on many vehicles and make the Check Engine light on would be fouled or a worn out catalytic converter. More common trouble codes that cause vehicles fail on emissions test and make the Check Engine light coming on can found below. Description Percentage Trouble Code Coolant Thermostat 3.1% P0128 Oxygen (O2) Sensor Slow Response Bank 1, Sensor 1 …

Read More »

Diagnose Engine Misfire (Part 3):Ignition And Compression Misfires

Diagnose Engine Misfire (Part 3)

Read Diagnose Engine Misfire (Part 2) IGNITION AND COMPRESSION MISFIRES Once you remove the spark plug, in case you also have isolated it to a single cylinder and have a misfire, the cause will be obvious. If the insulator of the plug is broken or cracked, then you have found the issue. Check for plug boots and wire damage, if the plug is wet but appears to be OK. End to end, using ohmmeter to measure the resistance of plug …

Read More »

Diagnose Engine Misfire (Part 2): Steady Misfire

Steady Misfire

Read previous Diagnose Engine Misfire (Part 1) FINDING THE CAUSE OF A STEADY OR CONTINUOUS MISFIRE The first step to do in diagnosing the steady misfire problem is to isolate the misfiring cylinder. While the engine is idle, one at a time disconnect each of the spark plug wires temporarily, this is an old-fashioned way to find a weak cylinder, although this is an old-fashioned way but sometimes it working. The weak cylinder has been pinpointed if there is no …

Read More »

Diagnose Fuel Pump (Part 3): Fuel System Scan Tool

Corvette Measuring Fuel Pump Pressure

Read Diagnose Fuel Pump (Part 2) : Fuel Pressure Test Fuel System Scan Tool Checks Look on a fuel pressure PID, if your scan tool can display OBD system data. Compare the specifications against the fuel pressure reading if it’s within range or not. To see if the result is the same, also compare the actual reading on the vehicle with a gauge with the scan tool pressure reading. Fuel pressure sensor is bad if the gauge reads higher. The …

Read More »