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Natural Vacuum Leak Detection Switch (4.7L)

WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

For Natural Vacuum Leak Detection (NVLD) pressure switch testing, perform the following diagnostic test, perform DTC P0452: NVLD PRESSURE SWITCH STUCK CLOSED or DTC P0453: NVLD PRESSURE SWITCH STUCK OPEN under DIAGNOSTIC TEST in SELF-DIAGNOSTICS - DAKOTA - 4.7L article.

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