20 Essential Tools No Car Mechanic Should Be Without
Car mechanics reveal the 20 automotive tools they couldn’t live without, including a battery-powered impact wrench, an air ratchet, a bolt spinner and an automotive stethoscope.
20 Tools Car Mechanics Can’t Live Without
Doing your own car repairs saves a boatload of money and gives you bragging rights on Monday morning. (Yeah, I replaced my crankshaft over the weekend-so what?) But let’s be honest here-you’re really in it for the tools, right?
That’s what I thought, so I asked three shop owners, our auto mechanic field editors and my gearhead friends to tell you about their favourite tools. As you might expect, some are pricey. But they’re simply the best tools around.
I’ve also added all the special tools I wish I’d had when I first started bustin’ bolts (and knuckles). Most are less than $100. And you can use them for non-automotive projects too. There, isn’t that all the justification you need to buy more tools?
Essential Car Mechanic Tool #1: Impact Wrench
David Marofsky and his auto salvage yard crew spend most of their time out in the yard yanking major components out of junk vehicles. So it’s no surprise that his tool of choice is a portable 1/2-inch-drive impact wrench. What does surprise me is that all the professional mechanics featured in this story routinely use battery-powered impact wrenches-and not just when they’re outside. In fact, David owns several of these workhorses and always keeps one near the hoist. He also owns a few Snap-on 3/8-inch-drive impact wrenches for working under the hood (No. CT4450A; $422 with one 14.4-volt battery, case and charger).
I never thought I’d see the day when battery power replaced compressed air. But David raves about the bolt-busting power of the CT6850. He even uses it on large 32-mm axle shaft nuts. “It hasn’t let me down yet,” he says. If you’re ready for power on the go and in the shop, check out a battery-powered impact wrench.
Essential Car Mechanic Tool #2: Air Ratchet
Kurt Spohn owns Action Auto Repair in Minneapolis and shares our love of tools, so it’s no surprise that he picked the same 3/8-in. drive Snap-on air ratchet I own. Spending over $400 on an air ratchet may seem excessive, but not if you’ve tried this baby. It puts out 65 ft. lb. of nut-busting torque. That means you can slip a socket onto a bolt head and just press the trigger. The FAR7200 will break it loose and spin it out in seconds.
But be careful when reinstalling nuts and bolts. Make sure the threads are fully engaged before you hit the trigger. Because if they’re not, this ratchet is powerful enough to ram a cross-threaded bolt all the way home.
Essential Car Mechanic Tool #3: Flex-Head Ratchet
Paul Selbitschka owns a Precision Tune Auto Care shop that specializes in auto diagnostics and spends quite a bit of time under the hood doing tune-ups and computer diagnostics. Since I already had nominations for power tools, I asked him for his favourite hand tool. He didn’t hesitate for a second. He simply loves his flex-head ratchet. The ultra-thin head lets Paul squeeze into tight spaces, and the flex feature allows him to pivot the handle to get maximum leverage for loosening fasteners and spark plugs. The large plastic handle lets him put more muscle into the “break.” The ratchet really goes to town once the bolt is loose. Paul just twirls the handle 360 degrees and spins the nuts and bolts out in seconds. It’s a cool tool-one that belongs in every DIYer’s toolbox, gearhead or not.
Essential Car Mechanic Tool #4: Automotive stethoscope
Every day, customers ask mechanics to find and fix strange vehicle noises. Lazy mechanics just guess at the cause and replace parts until the noise goes away (on your dime, of course). But professional mechanics use a stethoscope. So I wasn’t surprised that several field editors picked the automotive stethoscope as their favourite tool. It’s an invaluable tool. But it does have one drawback-it can’t help you find a noise that occurs only when you’re driving. So some mechanics (like me) are jumping on the wireless bandwagon. To find the source of clunks, thumps and whirs, I use a wireless stethoscope.
Some kits come with multiple transmitters and microphone clamps, a receiver, headphones and hook-and-loop straps. Just clamp the microphones to the most likely suspects in the general vicinity of the noise. Then take the vehicle for a spin. Listen to each microphone until you hear the noise. That’s your villain.
If you’ve got an annoying vehicle noise but aren’t up for buying one of these kits, find a shop that owns one.
Essential Car Mechanic Tool #5: Three Great Socket Innovations
1. Locking extension bars hold on to sockets.
It’s a drag when you pull your ratchet and extension bar out of a tight spot only to discover that the socket is still stuck on the bolt head. That’ll never happen if you use locking extension bars (pictured). Pull back the locking ring, snap on a socket and let go. The socket is locked on and will always come out with the extension bar.
2. Save your back with a 20-inch extension bar.
I was leaning over the fender and elbow deep into a tune-up when an old pro suggested this tool. “Saves your back,” he said as he handed me a 20-inch extension bar. Now I use it all the time. Just snap your socket onto the end and ratchet away-while standing.
3. Flexible sockets get in tight places.
With engine compartments more crowded than ever, I find myself reaching for my flex sockets quite often. They have a much shorter profile than an ordinary socket and universal joint combo. Yeah, they’re a bit pricey. But they let you remove and install bolts in really inaccessible places.
Essential Car Mechanic Tool #6: High Torque Pneumatic Wrench
You can buy an inexpensive impact wrench for less than $50, but you’ll regret it every time you run into a rusted bolt. Instead, pony up about $200 for a real impact wrench. This new composite impact wrench from Chicago Pneumatic has all the power you’ll ever need. Just slap on an impact socket and squeeze the trigger. Rusted bolts give up the fight when faced with 922 ft.-lbs. of reverse torque. That’s almost twice the torque of ordinary impact wrenches. So buy a powerful impact wrench. Get the job done. Go play.
Essential Car Mechanic Tool #7: Vacuum Pump, Bleeder, Pressure-Testing Kit
A hand-operated vacuum pump is simply a “must-have” tool. And this Mity Vac kit is well built, reasonably priced and comes with all the attachments you’ll ever need.
Use the vacuum pump to test your vacuum-controlled sensors and motors. Or find a leaking vacuum line by plugging each one and applying vacuum. If it holds, it’s good. You can also use the gauge to find a vacuum leak. Just spray carb cleaner around the possible leak sites. The gauge will flutter if you spray a leaking area. Want to bleed your brakes yourself? Just attach the fluid transfer bottle and vinyl tubing to the pump. Next, use the refill adapters to keep the master cylinder filled while you suck brake fluid out of the bleeder screws. Keep pumping until you see fresh fluid. You can also use the pump to flush power-steering fluids.
Essential Car Mechanic Tool #8: Battery Carrier
Old car batteries weigh a ton, and they’re always wedged in tight. The days of wrestling one out with your nice clean hands are over. Just open the jaws of this battery carrier, slap it over the battery, and lift up and out. Now you can carry the battery at your side and away from your clothes. Then use it to load in a new car battery. Your work’s done-and your shirt lives to see another day.
Essential Car Mechanic Tool #9: Out-Of-Sight Pliers
Okay, so you already own needle-nose pliers. But have you ever noticed how your hand is always in your line of sight when you’re trying to grab small things with them? Well, so did the guys who came up with these Kiwi pliers. Grab one of these pliers and go after clamps, clips and retainers and still see what you’re doing.
Essential Car Mechanic Tool #10: Bent-Handle Flex Ratchet
Ordinary ratchets are short, so you need lots of muscle. But longer ratchets don’t fit well under the hood. GearWrench has the answer. Its bent-handle flexible-head ratchet lets you get into tight places and still get the leverage you need to break bolts. The cushioned grip makes it more comfortable, and the bent handle lets you put even more distance between you and the engine. So when the bolt breaks loose, your knuckles aren’t in the way. To sweeten the deal, the three-piece set includes two spark plug sockets with built-in flexible extensions.
Essential Car Mechanic Tool #11: Ratchet Extender
When you’re working in areas like engine compartments, sometimes you just can’t get your socket into the tight places. That’s where this Tite-Reach tool comes in handy. Slap your socket onto one end of the extension tool and attach your ratchet to the other end. Then loosen or tighten the “unreachable” bolt.
Tite-Reach extension tools are available for 1/4-in. and 3/8-in.-drive sockets/ratchets and range in price from low for the plastic consumer version to higher for a set of two metal professional versions.
Essential Car Mechanic Tool #12: Light up the Hood
Light up the entire engine compartment with this clip-on light. The Underhood Lite fits car and truck hoods from 4-ft. to 6-ft.-6-in. wide. Spring-loaded J-hooks snap it onto the hood of your vehicle. The hooks are foam-covered, so you can scratch the scratch worries.
Essential Car Mechanic Tool #13: Screwdrivers with Hex Bolsters
You won’t need hex bolsters very often. But when you really need torque, they do the trick. (What’s a bolster, you say? It’s the place where the shank meets the handle.) Just slide a wrench down the screwdriver shaft and onto the bolster. Then push the screwdriver tip into the screw head and lean into it while you turn the screwdriver with the wrench. Your “lean-in” will keep the screwdriver bit seated in the head, while the wrench gives you added leverage.
Essential Car Mechanic Tool #14: Air Tool Holder
Air tools don’t come with hooks, and they don’t nest well in drawers. So plunk down 23 bucks on this locking air tool holder and your life will be complete. Having second thoughts about that neighbour you entrust with your house key when you’re away? Throw your bolt cutters in your suitcase and snap a padlock on the rack. There, it’s done.
Essential Car Mechanic Tool #15: Air Hammer with Quick-Change Chuck
If you’ve ever had to change air hammer bits, you know what a pain it is to mess around with the spring retainer. Forget that. This new air hammer from Ingersoll Rand comes with a quick-change chuck and three chisels. Just pull back the collar and slide in a new chisel. Then hit the trigger and you’re in business.
Essential Car Mechanic Tool #16: Flexible Funnel Keeps Things Clean
If you do your own oil changes, you need this formable funnel. It bends, moulds and flexes so you can channel the oil right into your drain pan. But it’s not limited to auto repair. You can use it for plumbing repairs too. Comes in four sizes. Best of all, you can flatten it and keep it right in your toolbox. For more ideas, watch the manufacturer’s video at formafunnel.com.
Essential Car Mechanic Tool #17: Screw Pitch Gauge
You’ve lost a bolt and now you’re rummaging through your old bolt collection and trying every one that looks like a contender. It turns in a few threads and then stops. Darn, you’re trying to ram an “English” bolt into a metric hole. Stop wasting time and buy an inexpensive screw pitch gauge. The gauge reads both metric and English thread sizes. Every shop owns one and you should too. Just find the “leaf” that mates to the threads on the nut or bolt and read the screw “pitch” (for metric fasteners) or the teeth per inch (TPI) for English fasteners. Record the number and run to the hardware store, or use the measurement to match up an old bolt from your collection.
Essential Car Mechanic Tool #18: Disconnect Stubborn Electrical Connectors
Many electrical connectors in late-model vehicles are locked together with plastic pins and slides. Going after them with needle-nose pliers can wreck those “locks.” But you can easily finesse them out with one of these picks. They’re also good for snatching O-rings and hors d’oeuvres.
Essential Car Mechanic Tool #19: Finger Ratchet for Tight Places
Carmakers love to install relays and control boxes in deep, dark places under your dash, and there’s no way to get big tools in there to loosen the hex-head screws. That’s where this 1/4-in.-drive SK Hand Tools (1-1/2-in.-diameter) finger ratchet comes in handy. If you can get your hand in place, you can get the fastener out. The fine-tooth ratchet mechanism lets you rotate backward to get another “bite,” without turning the screw back in. You won’t use this tool often, but when you need to, it pays for itself.
Essential Car Mechanic Tool #20: Spark Plug Pliers Prevent Boot and Wire Damage
Grab hold of plug wires with pliers and you’ll for sure damage the boot. But the padded jaws on this spark plug boot pliers let you get a firm grip on the spark plug boot without tearing it. Slide it onto the top portion of the boot near the wire and clamp down. That’ll apply force to the metal clip inside the boot. Then twist and pull. No more torn boots or wires.
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