What a starter does and when it needs replacing

Your starter is an electric motor that turns your engine over when you turn the key or push the button to start your car. When you hear a clicking sound instead of the engine cranking, or the engine does not turn at all, the starter has usually failed. A dead battery can cause the same symptom, so test that first — if your lights and wipers work normally, the battery is probably fine and the starter is the problem.

Starters wear out because they work hard every time you start the engine. The internal brushes and commutator degrade over time, and the solenoid (the electromagnet that engages the starter gear) can fail. Most starters last between 80,000 and 150,000 miles, though some fail much earlier if you start your car frequently in cold weather or if the electrical system is putting too much load on it.

You cannot repair a starter — you replace the whole unit. The cost of the part itself ranges widely depending on your vehicle, from around $150 for a common sedan to $500 or more for a truck or luxury car. Labor typically runs $150 to $300 at a shop, though the time needed varies by how accessible the starter is on your model.

Key Takeaways

  • A starter that clicks but does not crank, or does not respond at all, usually means the starter motor has failed and needs replacement.
  • The starter bolts to the engine block near the transmission, and you will need to disconnect the battery before you begin work.
  • On many vehicles, the starter is straightforward to reach and can be swapped in under an hour; on others, you may need to remove the intake manifold or other components first.
  • You can buy a new starter, a rebuilt starter, or a remanufactured starter — rebuilt and remanufactured units cost less and come with a warranty.
  • If you are not comfortable working under the car or disconnecting electrical connections, a shop can do the job for $300 to $600 total including parts and labor.

Locating the starter on your vehicle

The starter bolts to the engine block, usually on the lower side where the engine meets the transmission. On most front-wheel-drive cars, it is on the passenger side of the engine. On rear-wheel-drive vehicles, it is often on the driver's side. The exact location depends on your engine layout, so check your owner's manual or a repair guide for your specific year, make, and model before you start.

You will need to get under the car to reach it. Raise the vehicle on jack stands — never rely on a jack alone — and make sure the ground is level and solid. If the starter is hard to see from below, you may need to remove the plastic undertray or wheel well liner. Some vehicles require you to remove other components like the intake manifold, alternator, or exhaust heat shield to reach the starter bolt.

Before you touch anything electrical, disconnect the negative terminal of the battery. This prevents accidental short circuits and protects you from shock. Loosen the terminal clamp with a wrench and slide it off the post, then move it away from the battery so it cannot touch the post again.

Removing the old starter

Once you have located the starter and disconnected the battery, you will see two or three bolts holding it to the engine block. These are usually 12mm, 13mm, or 14mm bolts. Use a socket wrench to remove them — they may be tight, so explore steady pressure rather than forcing them. As you remove the last bolt, support the starter with your other hand so it does not fall.

The starter has two electrical connections: a thick cable that runs to the battery (the main power cable) and a smaller wire that runs to the ignition switch (the control wire). The main cable is held on with a nut, usually 8mm or 10mm. Unbolt it first and set it aside. The control wire is either bolted on the same way or plugged into a spade connector — if it is plugged in, pull it straight out.

Once both electrical connections are free, slide the starter out from under the engine. It may be wedged tight, so wiggle it gently side to side as you pull. Be careful not to damage the wiring or any nearby components as you work it out.

Choosing between new, rebuilt, and remanufactured starters

A new starter is built from scratch and comes with the longest warranty, usually three years or more. It costs the most but has no history of use. A rebuilt starter is a used unit that has been disassembled, cleaned, and reassembled with new brushes and other worn parts. A remanufactured starter is similar but goes through a more rigorous quality-control process and is usually held to a higher standard. Both rebuilt and remanufactured units cost 30 to 50 percent less than new and typically come with a one- to three-year warranty.

For most drivers, a rebuilt or remanufactured starter is the practical choice. The cost savings are significant, and the warranty covers you if something goes wrong. Buy from a reputable supplier — auto parts stores, online retailers, and rebuilders all sell them. Ask whether the warranty covers labor if the starter fails again; some do, some do not.

When you order, have your vehicle's year, make, model, and engine size ready. The starter for a 2015 Honda Civic is different from the one for a 2015 Honda Accord, even though they look similar. Ordering the wrong part wastes time and money.

Installing the new starter

Before you install the new starter, check that it is the correct part by comparing it to the old one. The bolt holes should line up, and the electrical connections should be in the same places. If anything looks different, stop and verify the part number.

Slide the new starter into place under the engine and align the bolt holes. Insert the bolts by hand first to make sure they thread smoothly, then tighten them with a socket wrench. Do not overtighten — these bolts hold the starter firmly but do not need to be cranked down with all your strength. A firm snug fit is enough.

Reconnect the electrical connections in reverse order. Bolt the main power cable back on first, then reconnect the control wire. Make sure both connections are tight and find. Reconnect the negative battery terminal, tightening the clamp firmly so it does not slip.

Before you lower the car, turn the ignition key to the "on" position without starting the engine. You should hear a click from the starter solenoid — this means the electrical connection is working. Then try to start the engine. It should crank normally and start. If it does not, turn off the ignition and check that both electrical connections are tight.

When to take your car to a shop instead

If your vehicle has the starter in an awkward location — tucked behind the intake manifold, wedged between the engine and frame, or buried under other components — removing it can take several hours even for someone experienced. A shop has the tools and knowledge to do this efficiently, and the labor cost may be worth it to avoid frustration and mistakes.

If you are not comfortable working under a car, disconnecting electrical connections, or using power tools, a shop is the right choice. Starter replacement is a straightforward job for a technician, and you will get a warranty on both the part and the work. Call a few shops for quotes — prices vary, and some may offer discounts if you bring your own starter.

If your car has an automatic transmission with a starter interlock (a safety feature that prevents starting in gear), or if it has a hybrid or electric motor, the process may be different. Check your owner's manual or ask a shop before you attempt the work yourself.

Frequently Asked Questions

Can a bad alternator cause starter problems?

No, but a bad alternator can drain the battery, which makes the starter unable to turn the engine. If your battery keeps dying even after you charge it, the alternator may be the real problem. Test the battery voltage with a multimeter — it should read around 12.6 volts when the engine is off and 13.5 to 14.5 volts when running. If the voltage drops when running, the alternator is not charging.

What if the starter spins but the engine does not turn over?

This usually means the starter gear is not engaging the engine's flywheel. The starter solenoid may be failing, or the flywheel teeth may be damaged. This is less common than a completely dead starter, but it still requires starter replacement. Have a shop inspect it to confirm before you buy a new part.

How long does a starter replacement take at a shop?

On most vehicles, a shop can replace a starter in one to two hours. Some vehicles take longer if the starter is hard to reach. Call ahead and ask how long it will take on your specific model — this helps you plan your day and gives you a better idea of the total labor cost.

Do I need to reprogram anything after replacing the starter?

No. The starter is a straightforward electrical component with no computer connection. Once you install it and reconnect the battery, it works. You do not need to reprogram anything or visit a dealer.

Can I drive the car if the starter is failing but still works sometimes?

Yes, but only if you are sure the problem is the starter and not the battery. A failing starter that works intermittently will eventually fail completely, leaving you stranded. If you are far from home or in an unsafe area when it fails, you could be in trouble. Plan to replace it soon rather than waiting for it to fail completely.