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Results are grouped by useful content—not by paid placement or guessed parts. Describe the symptom naturally; IAR recognizes common alternate wording while keeping exact codes and vehicle details precise.
Select a vehicle when you want more relevant guidance. AI guidance stays separate from verified IAR source records.
Helps locate certain intake or EVAP leaks when used at an approved pressure and connection point.
Diagnostic toolsEvaluates battery performance using a defined method after state of charge is considered.
Diagnostic toolsCompares cranking pressure under controlled conditions; interpretation depends on engine and test setup.
Diagnostic toolsApplies controlled pressure to a cool system for leak inspection. Never exceed the specified test pressure.
Specialty toolsClassify smoke or a burning smell by location, color, timing, and nearby systems before attempting another drive or touching a hot component.
intermediateA wheel that locks, a brake that stays applied, or a vehicle that pulls with heat or odor can become a control and fire hazard. Stop driving and separate friction, hydraulic, parking-brake, mechanical, and control evidence with the exact vehicle procedure.
professional recommendedSeparate state of charge, battery condition, and connection problems before blaming the starter or alternator.
Test-first procedureCheck whether the vehicle is replenishing electrical energy under its intended operating strategy instead of applying one universal voltage rule.
Test-first procedureSeparate start-request, interlock, cable, ground, solenoid, and starter-motor evidence before bypassing the circuit or replacing the starter.
Test-first procedureSeparate missing ignition, fuel delivery, control, synchronization, and mechanical evidence after the engine is confirmed to crank.
Test-first procedureUse controlled pressure on a cool system to investigate leaks without opening a hot, pressurized cooling circuit.
Test-first procedureIAR does not passively record this search. Save feedback only if you want a local note that you can export later for editorial planning. VIN-like vehicle identifiers are redacted before local save.