Diagnostics & Troubleshooting Problems
957 problems reported across 10+ industries
Industries Reporting Diagnostics & Troubleshooting Problems
Top App Ideas for Diagnostics & Troubleshooting
View allLeakSense Pro
HVAC Leak Finder for Hard-to-Detect Leaks
Misfire Detective
Intermittent Misfire Diagnosis App
PipeSense Diagnostics
Diagnostic app for plumbing leaks & blockages
AlignSmart DIY
Precision DIY Wheel Alignment App
HVAC Diagnose Pro
Wireless HVAC Diagnostic Assistant
DiagPath HVAC
Step-by-step HVAC diagnostic assistant
Diagnostics & Troubleshooting Problems(page 30 of 48)
TransConnect Parts Verifier
Unsure if the TCM part number installed in a 2026 VW Taos is correct after an accident, causing no-start and communication faults; need to verify correct part and diagnose internal TCM failure.
AirbagDiag Pro
Unable to diagnose a 1994 Mercury Grand Marquis airbag light because standard OBD1 tools and methods (paperclip trick, flash pattern, OBD1 scanner) cannot communicate with the airbag diagnostic module.
ValveTrain Insight Pro
Engine has extremely low compression across all cylinders, but compression normalizes when intake rockers are removed, indicating a valvetrain or timing issue that persists despite standard diagnostics.
BoostLeak Finder Pro
Cannot diagnose persistent high fuel trim at idle despite DIY smoke tests and throttle body checks.
PartCheck Diagnostic Assistant
New fuel pump did not fix low fuel pressure and lean bog on throttle in a 1998 Mercedes A160.
FocusLock AI
Camera autofocus fails to track fast-moving animals like flying birds and dogs catching frisbees, resulting in many unfocused photos.
ArcSniffer Pro
Intermittent arc faults are difficult to diagnose because they fail to trigger during testing, leading to repeated callbacks and wasted time.
HVAC FaultFinder Pro
Diagnosing an intermittent Mitsubishi split system E9 error code that persists after replacing the outdoor control board, with limited diagnostic tool access.
VVTDiag Pro
Diagnosing intermittent stalling on startup in a low-mileage 2010 Aveo with no check engine light, where standard tests (injector leak down, fuel pressure, vacuum leaks, VVT solenoid swap) have not identified the root cause.
ReliefGuard Monitor
Intermittent water heater relief valve discharge at night causing water damage to neighbor's unit, with suspected building pressure spikes that cannot be diagnosed due to restricted access to common mechanical areas.
DiagAssist HVAC
Junior HVAC technician struggles with diagnostic uncertainty, lacks confidence in troubleshooting refrigeration circuits due to inconsistent measurements and inadequate field training.
SmartDiag Pro
Car stuck in limp mode with persistent electrical fault codes after alternator replacement, unable to diagnose root cause between ECU failure and wiring harness issue.
GeoLoop Air Purge Pro
A geothermal heat pump repeatedly trips on high head pressure due to suspected air in the loop or insufficient water volume, causing return calls and diagnostic challenges.
Transformer Health Monitor
An electrical worker needs to diagnose an unusually hot and loud transformer but lacks a systematic way to determine the cause and appropriate action.
SlabPipe Scope
House built on slab has 1.25 inch copper drain pipe that may be crushed or undersized, causing washer and dishwasher to back up into sink, and no camera can navigate the tight 90-degree turns to inspect.
CoolantLeak Detective
Coolant system builds pressure and leaks through the reservoir relief valve only at highway speeds, despite normal coolant temperature, and the root cause is unknown.
HVAC DiagnosisAI
HVAC technician is struggling to diagnose a systematic freezing issue that recurs at night, despite replacing parts and consulting multiple companies.
BrakeBypass Pro
Scan tool fails to properly retract electronic parking brake calipers and leaves the Mercedes in diagnostic mode with no clear way to exit.
Transmission Detective
Car jerks harshly when shifting from 1st to 2nd gear, causing transmission to enter limp mode, and repairs (clutch packs, seals, solenoids) have not resolved the issue.
ClutchLink Diagnostic
Car tries to move forward when in neutral with clutch released, indicating a binding issue in the R154 transmission or clutch assembly.