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Showing posts with the label engine warning light

Other Warning Light(s) On

Troubleshoot Other Warning Light(s) On Car Control Panel Temp Warning Light On Your engine is overheating. Stop driving immediately and turn the engine off. Continuing to drive risks causing expensive engine damage such as a blown head gasket, or cracked or warped cylinder head. Low oil pressure or loss of oil pressure can be caused by a low oil level in the crankcase, a worn or damaged oil pump, or worn engine bearings. Allow the engine to cool down for several hours before you attempt any further diagnosis. A hot engine can be very dangerous because of steam pressure inside the radiator and coolant reservoir. Do NOT attempt to add coolant until the engine has cooled down and the radiator cap or reservoir cap can be safely opened. Overheating can be caused by a low coolant level (check the radiator, water pump, and hoses for leaks), coolant leaks inside the engine (leaky head gasket or cracks in the head or block), a stuck thermostat, or a cooling fan that isn't worki...

Check Engine Light is On

Engine Warning Light Is On Today’s cars are controlled by a Powertrain Control Module (PCM), your engine’s computer. If you want to repair or modify your car’s performance, you need a scantool to communicate with the PCM. Symptoms: Check Engine Light on Poor Acceleration Poor Fuel Economy Rough Idle Probable Cause(s): Oxygen Sensors Codes (P0130 to P0167) EVAP Code (P0445) That pesky Check Engine Light, the “Malfunction Indicator Lamp” or “MIL” for short, is on because your vehicle’s computer self diagnosed a fault that could cause your vehicle’s emissions to increase. It doesn’t necessarily mean your vehicle is polluting – or has a serious problem – but it might. So the light is on to let you know something is amiss that needs your attention. Trouble is, you don’t know WHAT the trouble might be. It might be something and could lead to a break-down or cause expensive engine damage, or it might be something minor like a loose gas cap (yes, the on-board diagnostics o...

How to Troubleshoot a Check Engine Light

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Check Engine Light Safety Tip:  Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Start your vehicle. 2 Locate your check engine light and monitor its status.  3 Verify that the check engine light is on while the engine is running. 4 For 1996 and later vehicles, connect the scanner to the data link connector(DLC) under the driver side dash.  5 Follow the Diagnostic Scanner's instructions to retrieve diagnostic trouble code(s). 6 Troubleshoot all possible symptoms that relate to the diagnostic trouble code(s). Ex: P0300 - Random/Multiple Cylinder Misfire Detected. This code indicates that the vehicle's onboard computer has detected that not all of the engine's cylinders are firing properly. The last 2 digits of the code represent the detected cylinder. In this case 00 is a random cylinder misfire code. A P0301 would...