Intermittent power loss and stalling in Ford F59 stepvans with no diagnostic trouble codes, making it impossible to replicate or repair.

Standard OBD2 scanners cannot capture intermittent faults that don't set codes, leaving fleet managers without data to diagnose the root cause.

Severity

4High

Willingness to Pay

implied

Added

May 13, 2026

Workarounds Described

waits 15-20 minutes then restarts
scans for codes that don't appear

Implied Software Gaps

Continuous vehicle data recorder that captures intermittent faults without DTCs
Remote diagnostic monitoring for commercial fleet vehicles

App Concept

FleetVitals Intermittent Fault Tracker

A connected vehicle diagnostic device and cloud platform that continuously records sensor data before, during, and after intermittent faults. When the wrench light appears or stalling occurs, the device saves a high-resolution data log of engine parameters and sends an alert. Fleet managers can review the timeline later, even if no DTC is stored, enabling data-driven repairs.

Key Features

Continuous data logging of engine speed, fuel pressure, throttle position, and other key parameters
Event-triggered recording when wrench light illuminates or engine stalls
Cloud-based dashboard with replayable fault timelines
Alerts to fleet manager's phone when a fault occurs

Target Users: Fleet managers of commercial delivery stepvans (e.g., Ford F59) at logistics companies with 5-200 vehicles

Revenue Model: $29/month per vehicle subscription, with a $149 hardware dongle one-time purchase

Existing Solutions Mentioned

OBD2 scanner (no codes found)

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