Need the right number, not a vague answer? This section covers the car specs drivers look up most often, including oil capacity, tire pressure, lug nut torque, battery size, wiper blade size, and other everyday reference data. The goal is simple: fast, clear, model-focused information you can actually use.
Where jack points sit and how they are marked, what federal rules require of the jack itself, how to confirm a lift before going underneath, and what to do when the sill has rusted through.
Published brake caliper torque figures from manufacturer recalls and service bulletins, why guide pin and bracket bolts differ by an order of magnitude, what piston size actually controls, and which caliper hardware is single-use.
Published VVT solenoid values from manufacturer service documents: coil and circuit resistance, supply and control signal, oil control valve test values, pinouts, torque figures and seal part numbers, each tied to the engine it applies to.
How throttle-by-wire (electronic throttle control) replaces the accelerator cable with sensors, the ECM, and a motorized throttle body, what the Toyota unintended acceleration study found, and what goes wrong.
Learn how brake-by-wire works, how electro-hydraulic EHB differs from fully dry EMB, which cars and suppliers use it, and what warnings or service issues can appear.
How a steer-by-wire system replaces the steering shaft with sensors, an ECU, and an actuator motor, which 2026 cars have it (Cybertruck, Lexus RZ, Toyota bZ4X), why the US blocks some versions, and what can go wrong.
Jumper cable gauge chart by vehicle type: what AWG you actually need for cars, trucks, and diesels, why the number on the box is often a lie, and how copper-clad aluminum and length cut real capacity.
How ADAS diagnostic trouble codes work: the 5-character SAE J2012 format, why driver-assist faults are mostly C and U codes, generic versus manufacturer-specific, and why clearing them often needs recalibration.
R-134a vs R-1234yf: the chemistry, GWP, flammability, cost, and service-fitting differences, why cars switched, and how to tell which refrigerant your car needs.
The I-CAR OEM Calibration Requirements Search covers static, dynamic, and scan-only ADAS procedures by make, model, and repair event for 2016 and newer vehicles.
