Loading IAR content
Use speed, braking, acceleration, road surface, and steering input to separate wheel/tire, brake, hub, axle, suspension, and steering causes.
intermediateUse load, speed, engine rpm, gear, and steering input to separate axle, CV-joint, driveshaft, mount, wheel/tire, transmission, and engine-performance causes.
intermediateUse steering angle, speed, throttle, braking, and road surface to separate tire, wheel, hub, bearing, CV-joint, suspension, steering, and driveline causes.
intermediateUse scan data and operating patterns to separate ignition, mixture, air, fuel, mechanical, mount, and control concerns.
intermediateClassify an unfamiliar vehicle noise by location, timing, speed, load, and safety evidence before choosing a system-specific inspection path.
intermediateSeparate true transmission slip or shift flare from engine power loss, traction-control intervention, clutch concerns, and normal ratio changes before condemning a transmission.
professional recommendedSeparate an intermittent radio or screen reset from a complete power loss by recording what else resets, then test supply, ground, protection, network, and heat evidence before blaming the head unit.
intermediateUse when and where the vibration is felt to separate brake torque variation from wheel, hub, tire, steering, and suspension causes.
intermediateThe brake system converts motion into heat and controls wheel deceleration. Noise, vibration, pull, warning lamps, and pedal changes require inspection of the whole system rather than one assumed axle or part.
System guideThe steering system changes wheel direction and returns road forces to the driver. Pull, vibration, looseness, and heavy steering should be separated from tire, brake, suspension, alignment, and road-surface effects.
System guideThe tire is the vehicle's contact with the road. Pressure warnings, vibration, pull, noise, and wear patterns must be interpreted with the vehicle placard, tire condition, wheel mounting, and chassis condition.
System guideAWD and 4WD systems distribute torque among driven wheels. Binding, noise, warning messages, and fluid leaks can involve tire mismatch, joints, bearings, clutches, gears, controls, or incorrect operating mode.
System guideAI guidance is separate from verified IAR sources.
Feedback stays on this device and isn’t sent to IAR. Vehicle identifiers are redacted before saving.