Author: Jason Miller

Jason Miller is an automotive enthusiast specializing in jump starters, car batteries, roadside emergency tools, and vehicle maintenance products. At Tech9AutoRepair, he provides practical guides and product insights to help drivers choose reliable automotive tools and stay prepared for unexpected roadside emergencies.

Jason Miller Quick Answer: A small aluminum AC line leak can often be repaired with a specialized epoxy patch or a properly done braze after the system is safely emptied of refrigerant. Larger cracks, corroded sections, or fittings near the compressor usually need a shop’s recovery machine, a replacement line, and a full evacuation and recharge rather than a patch. If your car’s air conditioning suddenly stopped blowing cold air and you can see an oily residue near a metal line under the hood, there is a good chance you are dealing with a small aluminum refrigerant line leak. Learning…

Read More

Jason Miller Quick Answer: To remove a broken bolt, apply penetrating oil, add heat if possible, then use a screw extractor, left-hand drill bit, or vice grips on any exposed stub. Go slowly, keep the hole centered, and stop if the extractor binds — forcing it often snaps the tool inside the hole too. A broken bolt can turn a ten-minute job into a weekend project, especially when it snaps flush with the surface or hides inside a housing you can’t easily reach. The good news is that most broken bolts come out with patience, the right sequence of steps,…

Read More

Jason Miller Quick Answer: To properly use a car jack, park on flat ground, chock the opposite wheels, place the jack on a reinforced jack point, raise the vehicle slowly, and support it with jack stands before working underneath. Never rely on the jack alone. A car jack looks simple, but small mistakes with jack placement, ground stability, or lifting speed are a common cause of slips, dropped vehicles, and driveway injuries. This guide walks through how to properly use a car jack from start to finish, including jack point selection, safe lifting technique, and when a jack alone is…

Read More

Jason Miller Quick Answer: Here is how to organize garage tool storage. Empty the space, sort tools by how often you use them, group them into zones, mount daily tools on the wall, keep heavy items low, and give your jump starter a dry, easy-reach spot. Label everything and review the layout each season. A crowded garage wastes time, hides tools, and makes roadside prep harder than it should be. When a battery dies on a cold morning, you should not have to dig through three boxes to find a jump starter. In my routine experience, a simple zone-based system…

Read More

Jason Miller Quick Answer: To organize a garage with metal cabinets, measure your space, anchor tall cabinets to wall studs, sort items into zones, and keep heavy tools low. Give jump starters, cables, and batteries a dry, room-temperature shelf away from fuel and paint, and keep clamps clear of bare metal. A cluttered garage slows you down when a battery dies or a tire goes flat. This guide shows how to organize a garage with metal cabinets so your tools, cables, and jump starter are easy to reach and stored safely. Metal cabinets Garage zones Jump starter storage Battery safety…

Read More

Jason Miller Quick Answer: Measure the inside diameter of the hose end with a digital caliper, or measure the outside diameter of the metal neck it slides over. Take two readings at clean, undamaged spots, record millimeters and inches, then match the result to a fuel-rated filler hose. A fuel filler hose that is only a few millimeters off can leak fuel, let vapors escape, or slip off under a clamp. Knowing how to measure fuel filler hose diameter takes about ten minutes and a cheap caliper. This guide walks you through the process, the safety rules, and the mistakes…

Read More

Jason Miller Quick Answer: Here is how to install a 1 1/2 bushing. Lift and support the vehicle, remove the part, press the old bushing out, clean the bore, lubricate the new one, press it in straight, then reinstall and torque at ride height using your service manual’s specs. A worn bushing can cause clunks, vague steering, and uneven tire wear. This guide shows you how to install a 1 1/2 bushing (about 38 mm across) in a control arm or similar suspension part, with clear safety checks at every stage. Suspension Bushings DIY Install Press-In Method Safety First Torque…

Read More

Jason Miller Quick Answer: To learn how to grease bearings safely, lift and support the vehicle, remove the hub, clean the old grease off, inspect the bearing, then pack fresh high-temperature wheel bearing grease through the rollers. Install a new seal, set preload per the service manual, and secure the nut. Sealed hub assemblies are replaced, not greased. A dry or dirty wheel bearing can turn a quiet wheel into a hot, noisy, unsafe one. This guide to greasing bearings covers tapered roller hubs on older rear-drive cars, trucks, 4×4 front hubs, and trailers, using basic tools and careful safety…

Read More

Jason Miller Quick Answer: To degrease an engine safely, work on a cool engine, disconnect the negative battery cable, cover the alternator, air intake, and electrical connectors, spray a suitable engine degreaser, agitate with a soft brush, rinse with low pressure, and dry fully before reconnecting the battery. A greasy engine bay hides leaks, attracts dirt, and makes battery terminals harder to inspect. This guide explains how to degrease an engine without soaking sensitive electrical parts, so your car starts normally afterward. You will get a clear process, safety checks, and a battery and jump starter angle that most cleaning…

Read More

Case for NOCO Boost+Air GOOLOO A3 12V 3000A Choosing between the Case for NOCO Boost+Air and the GOOLOO A3 12V 3000A Portable Jump Starter with Air Compressor may seem odd at first. One is a protective storage case for a specific jump starter. The other is a complete emergency power tool with jump-starting and tire inflation features. Still, both products can matter to drivers who want better roadside readiness. The Case for NOCO Boost+Air helps protect a NOCO AX65 from dust, water, scratches, and crushing forces. The GOOLOO A3 12V 3000A gives you the equipment needed to restart a vehicle,…

Read More

By Jason Miller Quick Answer: A basic scissor jack typically costs $15-$40, a hydraulic bottle jack runs $25-$80, and a hydraulic floor jack ranges from $50-$250+. So how much does a car jack cost overall? Most drivers pay $20-$100 for a reliable, everyday jack, with heavier-duty or specialty models costing more. If you’ve ever popped your trunk to check your spare tire kit, you’ve probably asked yourself how much does a car jack cost and whether the one you have is actually good enough. The honest answer depends on the type of jack, its lifting capacity, the materials used, and…

Read More

Jason Miller Quick Answer: A car AC compressor pressurizes refrigerant gas and pushes it through the air conditioning loop. This pressure change lets the refrigerant absorb heat from cabin air at the evaporator and release it outside at the condenser, which is how your car makes cold air. If your car’s AC blows warm air, or you just want to understand what’s happening under the hood every time you flip that AC switch, this guide walks through exactly how a car AC compressor works, why it matters, and what to check before assuming the worst. AC Compressor Basics Refrigerant Cycle…

Read More