Idle Stop Solenoid Replacement at your home or office.

Our certified mechanics come to you · Backed by our 12-month, 12,000-mile warranty · Get a fair and transparent estimate upfront

Idle Stop Solenoid Replacement Service

What is the Idle Stop Solenoid all about?

Most older vehicles are equipped with a device called an idle stop solenoid that works to close off the throttle when the key is turned off. It prevents engine idle from continuing once the fuel and air stop being delivered to the engine. Fuel-injected cars don’t have this type of device. With fuel injection, the fuel goes to the injectors via an electronic pump, and the injectors are fired electronically, so when the key is turned off, there is no fuel delivery.

With a carburetor, there’s no electricity, so even when the ignition is turned off, the engine still rotates a bit, taking in air and fuel. Even though the car ignition has been turned off, there is still enough hot carbon in the engine’s cylinders to ignite a bit of fuel and create problems.

Keep in mind:

  • Idle stop solenoid inspection is not a part of routine maintenance.
  • A faulty idle stop solenoid can cause engine damage if not corrected.

Our recommendation:

If your car’s engine keeps going when you park, you may have a problem with your engine idle. Engine run-on can often be due to a faulty idle stop solenoid. If you’re experiencing related symptoms, get your vehicle checked out by one of our expert mechanics.

What common symptoms indicate you may need to replace the Idle Stop Solenoid?

  • Engine is idling too high
  • Engine sputters or shudders for a while after the key is turned off
  • Fuel economy is significantly worse

How important is this service?

If your idle stop solenoid is faulty and you experience engine run-on, it can be harmful to your engine because it interferes with the normal “cool down” phase. Your fuel economy will also drop. Have your idle stop solenoid replaced soon if it is deemed faulty.

Fast and easy Idle Stop Solenoid Replacement service at your home or office.

Recent articles & questions

P0049 OBD-II Trouble Code: Turbo/Super Charger Boost Control Solenoid Circuit/Open
P0049 P0049 code definition Turbo/Super Charger Turbine Overspeed What the P0049 code means This code has varied definitions, depending on the manufacturer. The code is generated when the Engine Control Unit (ECU) detects an abnormal reading in the turbocharger or...
How to Install Car Speakers
Is Is it time to install new speakers? If you hear rattling or excessive humming or buzzing coming from your car speakers, it may be time to replace your old speakers ( Or, if you are looking for extra volume,...
P0290 OBD-II Trouble Code: Cylinder 10 Contribution/Balance Fault
P0290 code means that the cylinder is contributing less power and that there is a fuel delivery problem due to a faulty or clogged fuel injector.

Trouble code P0060 after changing out all of my O2 sensors

Hello. Code P0060 comes on when the computer detects excessive resistance in the heater circuit for oxygen sensor 2, of bank 2. If all of the sensors have been replaced then it may be possible that the issue is rooted...

Code on Subaru Forrester 2005 is PO335

Code P0335 relates to the camshaft position sensor not transmitting a proper signal to the PCM. The camshaft position sensor ( measures the rotational position of the camshaft and transmits that information to the engine control computer. To determine which...

Misfire that got worse after coil pack and spark plugs were changed

The engine can be diagnosed, and the fault pinpointed, if you request a Check Engine Light diagnostic ( Trouble codes that refer to parts, in this instance a coil, do not necessarily mean that the part has failed. For example,...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 ·