trouble codes

Engine Coolant Temperature (ECT) Sensor Location

Engine Coolant Temperature (ECT) Sensor: Failure Signs: Testing

09/23/2024

The engine coolant temperature (ECT) sensors function, is to monitor the temperature of the engine’s coolant. So, most engine coolant temperature (ECT) sensors operate, using electrical resistance to measure the temperature of the coolant. The […]

Exhaust Gas Recirculation: Types, Failure, Cleaning, Replacement

08/21/2024

The exhaust gas recirculation (EGR) valve, does exactly what the name implies. It circulates, exhaust gas, for a second time. So, exhaust gas recirculation (EGR) valves, do not normally require maintenance. But, they can become […]

(EGR) Valve: Common Problems And Troubleshooting Procedures

08/20/2024

The (EGR) valve system, is designed to help minimize, harmful oxides of nitrogen in the air we breath. To help do this, the (EGR) valve allows, a calibrated amount of exhaust gas, to reenter the […]

Loose Gas Cap: Most Common Cause For A Check Engine Light

08/14/2024

So, a loose gas cap is among the many causes, for a (CEL) check engine light to come on. In fact, a loose gas cap, is actually the most common cause, of a (CEL) check […]

Crankshaft Position Sensor Being Unplugged

Crankshaft Position Sensor – (CKP) – Testing And Replacement

08/07/2024

Crankshaft position sensors (CKP) read ignition timing, the (RPM) signal, and determine engine speed. But, when the crankshaft position sensor (CKP) fails, it stops transmitting the readings. Consequently, the crankshaft position sensors (CKP) readings, contain […]

Oxygen Sensor (O2) Mounted on Exhaust Manifold

Oxygen Sensor (O2) – Rich Or Lean Engine Codes, What To Check

07/15/2024

Replacement of a good Oxygen Sensor, is a common mistake made by (DIY) mechanics all the time. So, before replacing any Oxygen Sensor, you must find the real problem first. First, the Oxygen Sensor is […]

Crankshaft Position Sensor Mounted on Front of Engine

Crankshaft Position Sensor: Tracks Position and RPM of the Crank

06/22/2024

There are a number of symptoms, that can point to your Crankshaft Position Sensor (CKP) failing. But, can also be confused with the same symptoms, caused by issues with, your Ignition or Fuel Injection System. […]

(O2) Oxygen Sensors: Function, Failure Symptoms, and Testing

03/22/2024

Every vehicle built since the 1980’s has one or more (o2) Oxygen sensors integrated into the exhaust system. So, (O2) oxygen sensors, confirm, that the proper air/fuel ratio, is actually reaching the engine. Consequently, measuring […]

(ECT) Engine Coolant Temperature Sensor – What Can Go Wrong

03/02/2024

The (ECT) sensor, is an engine management system sensor. And, is used to monitor, the temperature of the engine’s coolant. The tip of the (ECT) sensor, protrudes into one of the cooling system passages, and […]

Mass Air Flow Sensor (MAF): Measuring Volume, Density, Temperature

02/20/2024

Almost all newer vehicles on the road today, use a mass air flow sensor (MAF). The mass air flow sensor, measures the volume and density, of the air entering the engine. In addition, it also […]