Skid steer loader engine cuts off when returning to idle despite replacing fuel system components and confirming fuel pressure.

Existing diagnostic methods rely on visual inspection of fuel lines and pressure checks without integrated sensor data or guided troubleshooting.

Severity

4High

Willingness to Pay

implied

Added

May 1, 2026

Workarounds Described

Installed clear hose to visually inspect fuel for air bubbles
Replaced lift pump twice based on pressure observation

Implied Software Gaps

Software that logs fuel pressure data over time and correlates with engine speed to automatically detect fuel starvation events
Guided troubleshooting tool that integrates model-specific known issues like filter housing and lift pump failures

App Concept

DieselDoc Pro

A mobile diagnostic app for diesel equipment that guides mechanics through systematic troubleshooting steps and uses OBD-II and fuel pressure sensor data to pinpoint root causes. Replaces guesswork with algorithmic diagnostics and shared community case studies.

Key Features

Step-by-step troubleshooting workflow based on symptoms and vehicle model
Integration with Bluetooth fuel pressure and OBD-II sensors
Community-submitted case library with resolution rates
Parts and service manual lookup integration

Target Users: Heavy equipment owners and mechanics in construction and agriculture with fleet sizes of 1-10 machines

Revenue Model: $29/month per user subscription or $199/year

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