DIY Repair Guides

The serpentine belt (also called drive belt or accessory belt) transfers power from the engine crankshaft to the alternator, power steering pump, water pump, air conditioning compressor, and other accessories. When it wears out and breaks, most of these systems stop working – and if it takes out the water pump on some engines, you […]

Ignition coils convert the battery’s 12 volts into the tens of thousands of volts needed to jump the spark plug gap. When a coil fails, you get misfires, a check engine light with cylinder-specific codes (P0301 through P0308), rough idle, and reduced power. Replacement on modern coil-on-plug systems is typically one of the simpler engine […]

Bleeding brakes removes air and old fluid from the hydraulic brake system. Air compresses (fluid does not), so any air in the lines gives you a spongy pedal that travels further than it should. Bleeding is required after any brake work that opens the hydraulic system – replacing pads is not, but replacing calipers, master […]

Wheel bearings support the weight of the vehicle and allow the wheels to spin freely with minimal friction. They wear slowly over time, but when they start to fail the symptoms are hard to ignore: growling or humming noises that change with speed, vibration through the steering wheel, and in severe cases wheel play that […]

Shock absorbers (or struts on most modern vehicles) damp suspension oscillation – they prevent the springs from continuing to bounce after hitting a bump. When they wear out, ride quality deteriorates, handling becomes vague and unpredictable, tyres wear unevenly, and braking distances increase significantly. Replacement is a moderate DIY job that pays back in better […]

Fuel injectors deliver precisely measured amounts of fuel into the engine for combustion. Over time they can clog, leak, or fail electrically, causing rough running, misfires, and poor fuel economy. Replacement is a moderate DIY job on most port-injected engines but considerably more involved on direct-injection engines where the injectors sit inside the cylinder head. […]

CV axles (constant velocity axles, also called drive shafts or half shafts) transmit power from the transmission to the wheels in front-wheel-drive and all-wheel-drive vehicles. They have CV joints at each end that allow the axle to flex with suspension and steering movement. When CV joints fail, you get a distinct clicking sound when turning. […]

Shock absorbers (or struts on most modern vehicles) damp the up-and-down motion of the suspension to keep tyres in contact with the road. They wear out gradually so the deterioration is hard to notice from the driver’s seat – many vehicles have shocks well past their useful life still on the road. Replacement is a […]

A broken tail light or brake light is a traffic ticket waiting to happen and a serious safety issue – vehicles behind cannot tell when you are slowing down. Replacement is one of the simplest electrical jobs you can do, though access varies significantly between vehicles. This guide walks through diagnosis, replacement, and what to […]

Door hinges, lock mechanisms, boot latches, bonnet latches, and various pivots throughout the vehicle all need periodic lubrication. Squeaky doors are the most obvious symptom, but worn latches that fail to secure properly are a serious safety issue – a boot or bonnet that pops open at speed is dangerous. Annual lubrication takes 15 minutes, […]

The fuel pump relay is a small but critical component that controls power to the in-tank electric fuel pump. When you turn the key to ignition, the ECM (or in older vehicles, the ignition switch directly) energises the relay coil, which closes the relay contacts and sends 12V power to the pump. When it fails, […]

Sway bar links (also called stabiliser links or end links) connect the sway bar to the suspension control arms or struts. They transfer force from one side of the suspension to the other, helping the sway bar reduce body roll in corners. When they wear out, you get clunking noises over bumps and reduced cornering […]