πŸ› οΈ HandsOnCoach ← Back to All Categories
mechanics.howto.support

Automotive & Mechanics Guides Directory

Browse 55 interactive, camera-guided tutorials with real-time AI step verification.

Beginner 15-25 minutes

How to Change a Bicycle Inner Tube

Remove the bicycle wheel, dismount the tire bead using tire levers, inspect the casing for debris, replace the inner tube, reseat the tire, and reinflate to target pressure.

6 Steps View Guide β†’
Beginner 5-10 minutes

How to Temporarily Fix a Flat Tire with Sealant

Quickly seal and reinflate a punctured car tire using an emergency aerosol sealant canister to safely drive to a repair shop.

5 Steps View Guide β†’
Intermediate 1 to 2 hours

How to Plastic Weld a Broken Car Bumper

Master the wire mesh and heat-fusion method to permanently repair cracked car bumper plastics without buying an expensive specialty welding kit.

6 Steps View Guide β†’
Beginner 15-25 minutes

How to Remove Snow Without Scratching Your Car

Clear heavy snow and thick ice from your vehicle's paint, windows, and roof safely using soft foam tools and thermal layering without marring the clear coat.

6 Steps View Guide β†’
Intermediate 30-45 minutes

How to Fix a Car Dent with a Puller Kit

Repair shallow car body dents without damaging factory paint using a bridge dent puller kit, specialized hot glue tabs, and a plastic knockdown tool.

5 Steps View Guide β†’
Intermediate 5 to 7 hours

How to Deep Clean and Detail Your Car

Transform your vehicle inside and out using a deep-cleaning multi-stage detail process that eliminates embedded dirt, restores trim, and seals the clear coat.

7 Steps View Guide β†’
Intermediate 1 - 2 hours

How to Install a Hidden Kill Switch in a Vehicle

Protect your vehicle by wiring a hidden toggle switch inline with the fuel pump power wire, preventing unauthorized engine starts without expensive alarms.

6 Steps View Guide β†’
Intermediate 2 to 4 hours

How to Diagnose and Fix a Car That Won't Start

Systematically diagnose and revive a non-running budget car by testing the battery, starter, ignition spark, fuel delivery, and engine air intake to get it idling.

6 Steps View Guide β†’
Beginner 1.5 to 2.5 hours

How to Deep Clean a Car Interior

Deep clean every plastic, vinyl, and glass surface in your vehicle cabin to restore a factory-fresh, streak-free finish using a systematic multi-step wipe-down.

6 Steps View Guide β†’
Intermediate 3 to 5 hours (plus 24h cure time)

How to Repair Peeling Automotive Clear Coat

Restore peeling, scratched, or oxidized automotive clear coat using wet-sanding, 2K aerosol blending, and machine polishing for a seamless factory-level finish.

6 Steps View Guide β†’
Beginner 20-30 minutes

How to Plug a Flat Tire

Learn how to locate a tread puncture, ream the hole, insert a vulcanized rubber plug, and safely reinflate your tire without removing the wheel from the vehicle.

6 Steps View Guide β†’
Beginner 15-25 minutes

How to Pop Out a Shallow Car Dent with Hot Water

Restore shallow plastic bumper or sheet metal dents quickly using hot water thermal softening and a controlled suction pull without damaging vehicle paint.

5 Steps View Guide β†’
Intermediate 2 to 4 hours

How to Install an Aftermarket Exhaust System

Learn how to safely remove an old factory exhaust and install a new aftermarket cat-back system with proper hanger placement, flange sealing, and tip alignment.

6 Steps View Guide β†’
Intermediate 4 - 6 hours

How to Repair a Rust Hole in a Car Body

Grind away rot to bare shiny metal, apply rust inhibitor, bridge the void with fiberglass reinforcement, and smooth with body filler for a lasting repair.

6 Steps View Guide β†’
Intermediate 2 to 4 hours

How to Fix a Deep Car Paint Scratch

Repair deep automotive paint scratches down to primer or metal using OEM touch-up paint, wet sanding blocks, and multi-stage polishing to restore a seamless clear coat.

6 Steps View Guide β†’
Intermediate 45-75 minutes

How to Rebuild a Vintage Moped Carburetor

Disassemble, deep clean, replace worn gaskets and jets, and recalibrate a vintage moped carburetor to restore smooth fuel delivery and crisp throttle response.

6 Steps View Guide β†’
Intermediate 2 to 3 hours

How to Repair Wheel Curb Rash and Scratches

Restore scuffed, scratched alloy wheels using metal putty, progressive wet-sanding, primer, and color-matched paint for a factory-smooth finish.

7 Steps View Guide β†’
Beginner 10-15 minutes

How to Remove a Blind Bearing with Wet Paper

Extract a stubborn blind-hole bearing safely using hydraulic pressure created with wet paper wads, a snug bolt, and hammer strikes.

5 Steps View Guide β†’
Beginner 45-60 minutes

How to Deep Clean Car Wheels

Deep clean and decontaminate automotive wheels, tires, and wheel barrels using dedicated brushes, iron remover, and protective sealant.

6 Steps View Guide β†’
Advanced 4-6 hours

How to Clean a Contaminated Fuel System

Drain, flush, and clean the entire automotive fuel systemβ€”from tank to injectorsβ€”to remove sugar, sediment, or bad gas and restore engine performance.

6 Steps View Guide β†’
Intermediate 60-90 minutes

How to Repair a Bumper with a Plastic Welder

Master nitrogen/air plastic welding on cracked automotive bumper covers. Learn V-grooving, backside mesh reinforcement, and rod fusion for a permanent structural bond.

5 Steps View Guide β†’
Beginner 1 to 2 hours

How to Deep Clean Cloth and Leather Car Seats

Deep clean and restore car seats by extracting ground-in grime from fabric upholstery and safely scrubbing, wiping, and conditioning leather surfaces.

6 Steps View Guide β†’
Intermediate 2 to 4 hours

How to Install an Amp and Subwoofer in a Car

Step-by-step automotive audio installation guide: routing heavy gauge power wire, making clean grounds, running signal cables, and tuning the amp safely.

7 Steps View Guide β†’
Intermediate 45-90 minutes

How to Remove Dents from a Car

Restore dented auto body panels using a paintless dent repair glue puller kit, tap-down tool, and isopropyl alcohol to pull out dings without damaging paint.

6 Steps View Guide β†’
Intermediate 1.5 to 2.5 hours

How to Fix a Rough Engine Idle

Diagnose and resolve rough engine idling by reading error codes, cleaning the MAF sensor, clearing throttle body carbon build-up, and checking spark plugs.

6 Steps View Guide β†’
Intermediate 1 to 2 hours

How to Install Truck Bed LED Lights

Wire and mount waterproof 12V LED strip lights under pickup truck bed rails with an inline fuse and dedicated rocker switch for bright cargo lighting.

6 Steps View Guide β†’
Intermediate 3-5 hours

How to Install Coilovers in Your Car

Upgrade your car's suspension by replacing factory struts and springs with adjustable coilovers to achieve custom ride height, better handling, and proper alignment.

7 Steps View Guide β†’
Intermediate 1 to 2 hours

How to Fix a Broken Mechanical Odometer

Restore a stopped mechanical odometer by removing the instrument cluster, opening the speedometer housing, and replacing stripped plastic drive gears.

6 Steps View Guide β†’
Intermediate 45-60 minutes

How to Restore Foggy Headlights

Restore yellowed, oxidized Honda Civic headlight lenses to crystal clarity using progressive wet-sanding, rotary compounding, and UV clear coating.

5 Steps View Guide β†’
Intermediate 45-60 minutes

How to Install a Battery Kill Switch

Wire and mount a master battery cutoff switch to the negative circuit to prevent parasitic drain, secure your vehicle, and enable safe electrical servicing.

6 Steps View Guide β†’
Beginner 25-30 minutes

How to Clean and Lube a Motorcycle Chain

Safely degrease, scrub, wipe clean, and lubricate a motorcycle drive chain on a paddock stand without contaminating tires or brake discs.

6 Steps View Guide β†’
Intermediate 1.5 to 3 hours

How to Replace a Catalytic Converter

Safely lift the vehicle, unbolt the rusted exhaust flanges, remove the faulty catalytic converter, and install a direct-fit replacement with fresh gaskets.

7 Steps View Guide β†’
Intermediate 30-45 minutes

How to Rebuild a Fuel Injector

Service a gasoline fuel injector by extracting clogged microfilters, replacing worn O-rings and pintle caps, and flushing internal solenoids clean.

5 Steps View Guide β†’
Beginner 2 hours

How to clean and detail a car interior

Deep clean and restore vehicle interior surfaces using systematic vacuuming, agitating cleaners with soft brushes, and applying UV dressing.

6 Steps View Guide β†’
Intermediate 1 to 2 hours

How to Install an Aftermarket Car Stereo

Learn to replace a factory car radio with an aftermarket single or double DIN stereo, including harness wiring, dash kit assembly, and testing.

6 Steps View Guide β†’
Beginner 15-25 minutes

How to Plug a Flat Tire

Locate punctures in the tire tread, ream the hole, insert a vulcanizing rubber plug, and re-inflate to proper PSI for a quick emergency roadside repair.

6 Steps View Guide β†’
Intermediate 2 to 3 hours

How to Fix a Blown Head Gasket with Sealer

Learn to chemically seal a minor blown head gasket using a professional pour-in treatment, system flush, and controlled heat cycle without engine teardown.

6 Steps View Guide β†’
Intermediate 45-60 minutes

How to clean a throttle body

Safely remove, deep-clean, and reinstall an electronic throttle body to eliminate rough idling, restore throttle response, and protect delicate internal motor seals.

6 Steps View Guide β†’
Intermediate 30-45 minutes

How to Fix a Small Engine That Won't Start

Systematically diagnose and repair a no-start small engine by troubleshooting fuel quality, spark delivery, air flow, and carburetor jet clogs.

6 Steps View Guide β†’
Intermediate 1 to 2 hours

How to Clean an Oxygen Sensor

Safely remove, chemically soak, and clean a fouled automotive oxygen sensor to restore proper engine air-fuel ratio readings.

6 Steps View Guide β†’
Intermediate 2 to 4 hours

How to Install an Off-Road Snorkel

Mount an off-road intake snorkel to your 4x4 fender, cut clearance holes in sheet metal, and seal the ducting watertight to the factory airbox.

7 Steps View Guide β†’
Intermediate 45-90 minutes

How to Fix a Stuck Power Car Window

Diagnose and replace a failed power window regulator and motor assembly, safely securing the door glass and restoring smooth window operation.

7 Steps View Guide β†’
Beginner 15-20 minutes

How to Clean and Lube a Bicycle Chain

Degrease, deep clean, and lubricate a bicycle chain using a clip-on chain scrubber tool to restore smooth shifting and prolong drivetrain life.

6 Steps View Guide β†’
Beginner 20-30 minutes

How to Change a Car Battery

Safely remove an old vehicle battery and install a new one by disconnecting terminals in the proper order, securing hold-down hardware, and preventing electrical shorts.

7 Steps View Guide β†’
Beginner 20-30 minutes

How to Replace and Install a Car Battery

Safely remove an old automotive battery and install a new one, ensuring correct terminal order, secure hold-down clamping, and corrosion-free electrical contacts.

7 Steps View Guide β†’
Intermediate 2 to 4 hours

How to Install a Car Amplifier

Learn to safely wire and mount a car amplifier, including power routing through the firewall, solid chassis grounding, and running signal cables without interference.

5 Steps View Guide β†’
Beginner 30-45 minutes

How to Fix a Car Horn

Diagnose and fix a non-working car horn step-by-step by testing the fuse, swapping the relay, checking wiring for power, and cleaning or replacing the horn unit.

6 Steps View Guide β†’
Beginner 30-45 minutes

How to Clean and Oil a Foam Motorcycle Air Filter

Thoroughly clean dirt and old tacky oil from a foam motorcycle or ATV air filter, dry it safely, and re-oil the element for maximum engine protection.

6 Steps View Guide β†’
Beginner 10-15 minutes

How to Install Graco SnugRide 35 Lite with LATCH

Learn how to safely install a Graco SnugRide 35 Lite/LX infant car seat base and carrier into your vehicle using the built-in lower LATCH anchor connectors.

6 Steps View Guide β†’
Intermediate 60-90 minutes

How to Clean a Motorcycle Carburetor

Disassemble, clear clogged fuel jets, flush internal passages, and reassemble a motorcycle carburetor to restore smooth engine idle and throttle response.

6 Steps View Guide β†’
Beginner 20-30 minutes

How to Clean Rubber Car Floor Mats

Deep clean and restore rubber car floor mats by loosening heavy dirt, agitating grime out of deep channels with a stiff brush, rinsing clean, and applying a non-slip protectant.

7 Steps View Guide β†’
Beginner 15-20 minutes

How to Replace Windshield Wiper Blades

Swap out worn windshield wiper blades with fresh J-hook or pin-style replacements to restore streak-free visibility and prevent glass damage.

6 Steps View Guide β†’
Beginner 25-40 minutes

How to Change a Flat Tire

Safely replace a flat vehicle tire with a temporary spare using roadside safety protocols, designated pinch-weld jack points, and criss-cross torque sequences.

7 Steps View Guide β†’
Beginner 30 to 45 minutes

How to Change Your Car's Oil

Safely elevate vehicle on jack stands, drain old motor oil, replace the crush washer and filter, refill with fresh oil, verify level, and recycle fluid.

8 Steps View Guide β†’
Beginner 15-20 minutes

How to Jump Start a Car

Safely revive a dead vehicle battery using jumper cables and a donor car. Master the strict 4-point connection sequence, grounding rules, and battery inspection.

8 Steps View Guide β†’