TORQDEX // DIAGNOSTIC SYSTEM

Automotive Diagnostics

Start with the symptom. Narrow the possibilities. Test before replacing parts.

SEARCH DIAGNOSTICS

01 // SELECT SYSTEM

Where is the problem?

Choose the system that best matches the vehicle symptom.

SYS-01

Starting & Charging

No-crank, slow-crank, dead battery, starter, alternator, and charging-system problems.

VIEW SYSTEM → SYS-02

Electrical

Battery drains, voltage drop, wiring faults, relays, fuses, and electrical testing.

VIEW SYSTEM → SYS-03

Engine Performance

Misfires, rough idle, hesitation, stalling, fuel delivery, ignition, and compression.

VIEW SYSTEM → SYS-04

Cooling System

Overheating, cooling-fan faults, thermostat issues, and coolant-flow problems.

VIEW SYSTEM → SYS-05

Brakes

Pulsation, vibration, pulling, noise, pedal problems, and brake-system diagnosis.

VIEW SYSTEM → SYS-06

Drivability

Highway vibration, acceleration problems, poor response, and abnormal driving behavior.

VIEW SYSTEM →

SYS-01

Starting & Charging

Diagnose battery, starter, alternator, cable, and starting-control problems.

01 Car Cranks But Won't Start 02 Car Clicks Once But Won't Start 03 Car Clicks Repeatedly But Won't Start 04 No Crank, No Start 05 Engine Cranks Slowly 06 Car Only Starts With a Jump

SYS-02

Electrical

Work through electrical faults using measurements instead of guesswork.

01 Battery Keeps Dying Overnight 02 Alternator Tests Good But Battery Dies 03 Voltage Drop Testing 04 Parasitic Draw Testing

SYS-03

Engine Performance

Diagnose fuel, ignition, air, compression, and engine-management problems.

01 Engine Misfires at Idle 02 Engine Misfires Under Load 03 Rough Idle When Cold 04 Rough Idle When Warm 05 Engine Stalls When Stopping 06 Car Hesitates Under Acceleration

SYS-04

Cooling System

Diagnose overheating and cooling-system faults logically before replacing parts.

01 Car Overheats at Idle But Not Driving 02 Car Overheats While Driving 03 Cooling Fan Not Turning On

SYS-05

Brakes

Identify common brake-system symptoms and likely mechanical causes.

01 Brake Pedal Pulsates When Braking

SYS-06

Drivability

Diagnose vibrations and abnormal vehicle behavior.

01 Car Shakes at Highway Speed