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Idle Stop Solenoid

Critical For Operation

Engine

Shuts off fuel flow to the engine at idle to prevent run-on or dieseling.

The idle stop solenoid cuts off the fuel supply to the engine when it is idling, preventing the engine from continuing to run after the ignition is turned off (dieseling).

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Typical part cost
$30–$100🔒
🔧
Typical labor cost
$100–$200🔒
🛣️
Typically lasts
100,000–200,000 mi
📅
Or about
7.0–10.0 years
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DIY difficulty
4/10

⚠️ Owners Often Notice

If the Idle Stop Solenoid is starting to fail, these are the signs owners most commonly report before it gets worse:

Engine running after shutoff
Poor fuel economy
Engine knocking
Engine stalling after idle

Related Services

Services commonly performed on or around this part.

Replace Idle Stop Solenoid

No standard interval on file

Inspect Idle Stop Solenoid

No standard interval on file

Test Idle Stop Solenoid

No standard interval on file