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Chevrolet Trailblazer Ext P0471 Engine Error Code

When you check Chevrolet Trailblazer Ext car engine light came on code P0471 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Chevrolet manufacturer may have a different definition for the P0471 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0471 Chevrolet Trailblazer Ext Code Clear

To solve P0471 Chevrolet Trailblazer Ext problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

P0471 Code Reason

Chevrolet Trailblazer Ext P0471 OBD-II Diagnostic Powertrain (P) Trouble Code Description

Chevrolet Trailblazer Ext car P0471 OBD-II Trouble Code The Exhaust Back Pressure (EBP) sensor is a variable capacitance sensor that, when supplied with a 5-volt reference signal from the Engine Control Module (

Reason For Chevrolet Trailblazer Ext P0471 Code

The reason of Chevrolet Trailblazer Ext P0471 OBD-II Engine Error Code is P0471 Exhaust Pressure Sensor Range/Performance.

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. P0471 Chevrolet Trailblazer Ext code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.

Chevrolet Trailblazer Ext P0471 Possible Solution :

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