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Failure mode - Ford 7.3L Power Stroke (T444E)

IPR valve failure / o-ring degradation

Reliability tier: aggregated - verify before ordering, see /disclosure/

Symptoms

Root cause

The IPR regulates HPOP output; its o-rings harden and the screen clogs with debris. Cheaper and more common than the pump itself - always rule in/out before HPOP replacement.

Diagnosis

Fixes

IPR o-ring kit / replacement IPR valve (fit new screen) ()

Prevalence

common

Affected configurations (50)