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When to clean the EGR valve for GM code p1406?

When to clean the EGR valve for GM code p1406?

When the light comes on, a code is sent out, which you can read using a scan tool. When code P1406 appears, the Exhaust Gas Recirculation (EGR) valve has failed. Cleaning the EGR valve can sometimes clear the code. It’s best to clean the valve before replacing the entire unit.

What are the fault codes for the EGR?

The EGR valve is stuck open or is jamming (due to carbon build up or possibly a bent shaft). Mechanical fault. Solenoid circuit malfunction. ECU reads voltage low at EGR solenoid. Solenoid circuit malfunction. ECU reads voltage high at EGR solenoid. The position sensor for the solenoid is malfunctioning.

What does the p1406 code mean on a Chevrolet?

The P1406 code means that the EGR valve is 10% of the expected position by the Powertrain Control Module (PCM), usually caused by carbon built up n the EGR valve. Start by cleaning the EGR valve. What is the cost to diagnose the P1406 CHEVROLET code Labor: 1.0

What does it mean when the EGR valve is stuck open?

The EGR pintle position was ±10% of the expected position. P1406 CHEVROLET Possible Symptoms. P1406 CHEVROLET Meaning. The Powertrain Control Module (PCM) determines that the EGR valve is stuck open if the actual Exhaust Gas Recirculation (EGR) position and the learned closed EGR position vary by more than a predetermined value.

When the light comes on, a code is sent out, which you can read using a scan tool. When code P1406 appears, the Exhaust Gas Recirculation (EGR) valve has failed. Cleaning the EGR valve can sometimes clear the code. It’s best to clean the valve before replacing the entire unit.

The EGR pintle position was ±10% of the expected position. P1406 CHEVROLET Possible Symptoms. P1406 CHEVROLET Meaning. The Powertrain Control Module (PCM) determines that the EGR valve is stuck open if the actual Exhaust Gas Recirculation (EGR) position and the learned closed EGR position vary by more than a predetermined value.

The P1406 code means that the EGR valve is 10% of the expected position by the Powertrain Control Module (PCM), usually caused by carbon built up n the EGR valve. Start by cleaning the EGR valve. What is the cost to diagnose the P1406 CHEVROLET code Labor: 1.0

When to clean exhaust gas recirculation ( EGR ) valve?

When code P1406 appears, the Exhaust Gas Recirculation (EGR) valve has failed. Cleaning the EGR valve can sometimes clear the code. It’s best to clean the valve before replacing the entire unit.

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Ruth Doyle