Starter Motor
moderate DIY~2h jobWritten 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
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
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 AmazonHeads 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?
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 100,000โ150,000 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.