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Home >> Jeep >> 2005 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 488 (Powertrain Diagnostic Procedures - Gas) >> Diagnostic Information And Procedures >> DRIVEABILITY - NGC - Diagnostic Tests >> P0452-NVLD Pressure Switch Stuck Closed >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

GOOD TRIP EQUAL TO ZERO

VEHICLE HISTORY AND SERVICE BULLETIN INVESTIGATION

EVAP PURGE SOLENOID LEAKS/STUCK OPEN

EVAP PURGE SOL CONTROL CIRCUIT SHORTED TO GROUND

NVLD SWITCH OPERATION

NVLD ASSEMBLY

NVLD SWITCH SIGNAL CIRCUIT SHORTED TO GROUND

PCM

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