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Starter Motor

moderate DIY~2h job

Written in plain English and reviewed by the eli5cars editorial team ยท Last reviewed June 2026

What it does

The starter motor is a powerful electric motor that physically spins the engine to get it going โ€” like using a hand crank to start an old car, but automated. When you turn the key, the battery sends a surge of current to the starter, which engages a small gear (the Bendix) with the engine's ring gear and spins the engine fast enough to fire. Starters fail from high mileage, heat, and the wear of thousands of high-current engagement cycles. The classic symptom: turn the key and hear one loud CLUNK โ€” then nothing. The battery is fine; the starter solenoid is engaging but the motor is dead.

Fix-vs-Skip Money Panel

DIY Cost

~$80

parts only

Shop Cost

~$350

parts + labor

Moderate DIY~2h job

Estimates only โ€” real prices vary by region, vehicle, and shop. Updated 2026.

Buy the part

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So what do I do now?

Three honest paths for fixing starter motor โ€” pick the one that fits your time, tools, and risk tolerance.

Door 1 โ€” DIY it

Moderate DIY

We don't have a curated parts/tools list for this repair yet. Based on its moderate difficulty rating, this is doable for someone with some DIY experience โ€” expect to need more than basic hand tools.

Door 2 โ€” Buy the part

Already have someone lined up to install it (or handy friend), and just need the part?

Search Starter Motor on Amazon

Heads up: some links below are affiliate links (including Amazon Associates) โ€” if you buy through them we may earn a small commission at no extra cost to you. Details: /disclosure.

Door 3 โ€” Go to a shop

Fair price band

$263โ€“$438

parts + labor, typical US pricing

Ask the shop

  • Are the parts OEM or aftermarket?
  • Is the diagnostic fee waived if I approve the repair?
  • Can I get an itemized estimate before you start?
  • What warranty do you offer on the labor?
Got a quote already? Check if it's fair โ†’

DIY tutorial

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Frequently asked questions

How do I test if my starter is bad?

With a fully charged battery (verify with a voltmeter: 12.6V+), turn the key. If you get one loud click but no cranking, tap the starter body firmly with a hammer or wrench handle while someone else tries starting. If it fires after tapping, the starter motor brushes are worn โ€” replace the starter. This tap trick works once or twice, not indefinitely.

My car makes no sound when I turn the key. Is that the starter?

Complete silence (no click at all) more often points to a bad battery connection, blown fusible link, bad ignition switch, or completely dead battery โ€” not the starter. The starter makes at least a click when it tries to engage. Check battery terminal connections first.

How long does a starter last?

Most starters last 100,000โ€“150,000 miles or more. They're relatively durable. When they fail, it's usually sudden โ€” unlike batteries which show gradual degradation. Heavy-duty use (lots of short trips with many start cycles per day) wears them faster.