13 Best Automotive Replacement Idle Speed Control Relays

List Updated January 2021

Bestselling Automotive Replacement Idle Speed Control Relays in 2021


OEM GENUINE IDLE SPEED CONTROL VALVE for 03-10 HYUNDAI KIA 2.0L 35150-23700

OEM GENUINE IDLE SPEED CONTROL VALVE for 03-10 HYUNDAI KIA 2.0L 35150-23700
BESTSELLER NO. 1 in 2021
  • For 2.0L L4 Engine Type
  • OEM Hyundai/Kia Part
  • Idle Control Valve

PROGRAMA Idle Control Unit (Rebuilt) 0025453332

PROGRAMA Idle Control Unit (Rebuilt) 0025453332
BESTSELLER NO. 2 in 2021
  • Price include $10.00 Refundable core charge
  • Fits 107, 045
  • 412 202 010 001,228 951 033

Pink Lizard Idle Air Speed Control Valve For Subaru 22650AA19C A33 661 R02 IAC

Pink Lizard Idle Air Speed Control Valve For Subaru 22650AA19C A33 661 R02 IAC
BESTSELLER NO. 3 in 2021
  • Idle Air Speed Control
  • Valve For Subaru 22650AA19C
  • Windshield Wiper Tools
  • Please Allow 7-23 Business Days For Delivery
  • Package Contains One Item

Korea Motor Parts 35150-26960 - Idle Speed Contro Valve for 1.6L Engine Type for Hyundai Kia

Korea Motor Parts 35150-26960 - Idle Speed Contro Valve for 1.6L Engine Type for Hyundai Kia
BESTSELLER NO. 4 in 2021
  • For 1.6L Engine Type
  • OEM Hyundai/Kia Part
  • Idle Speed Control Valve

Sunny Car New Idle Air Control Valve For Matrix 1.6 08 Onwards Hyundai Sonata 04-99 Matrix

Sunny Car New Idle Air Control Valve For Matrix 1.6 08 Onwards Hyundai Sonata 04-99 Matrix
BESTSELLER NO. 5 in 2021
  • Please check the Part Number before place order!
  • Condition: New
  • YJ No.:? 61125002????
  • PART NO:? 35150-33001
  • Fits for:? MATRIX 1.6 08-?? HYUNDAI SONATA (04-99) MATRIX?(Recommend?Professional?Installation)

Bosch 00701523 Control Unit

Bosch 00701523 Control Unit
BESTSELLER NO. 6 in 2021
  • This is an O.E.M. Authorized part
  • Fits with various Bosch brand models
  • Oem part # 00701523

Yalai 012010-6010 17150-RNA-A01 Bypass Valve Actuator For Accord Odyssey Civic

Yalai 012010-6010 17150-RNA-A01 Bypass Valve Actuator For Accord Odyssey Civic
BESTSELLER NO. 7 in 2021
  • Exacting tolerances with size and color
  • Installation: directly replace and easy to install
  • Built to strict quality standards and use superior quality parts
  • 100% test before shipping to ensure product safety, stability and durability
  • Please double check the years and models in the description to make sure it fits your vehicle before ordering

New Starter For Landrover Discovery Range Rover 4.0L 4.6L 1999-2004 1.8kW 17792

New Starter For Landrover Discovery Range Rover 4.0L 4.6L 1999-2004 1.8kW 17792
BESTSELLER NO. 8 in 2021
  • 12V 1.7kW CW 9T
  • 1 year warranty

Professional Parts Sweden W0133-1972519 Idle Speed Control Relay

Professional Parts Sweden W0133-1972519 Idle Speed Control Relay
BESTSELLER NO. 9 in 2021
  • Designed to meet or exceed original part specifications
  • Fits various makes and models
  • Carefully check vehicle fitment before purchase

Tru-Tech SA4T Idle Speed Control Motor

Tru-Tech SA4T Idle Speed Control Motor
BESTSELLER NO. 10 in 2021

Idle Air Speed Control Valve For 98-03 Mazda 626 2.0l 1.8l Protege

Idle Air Speed Control Valve For 98-03 Mazda 626 2.0l 1.8l Protege
BESTSELLER NO. 11 in 2021

Wells 19929 Idle Speed Control Relay

Wells 19929 Idle Speed Control Relay
BESTSELLER NO. 12 in 2021
  • Precise, short-circuit protection
  • High-current welded connections for reliability
  • Semi-precious metal contacts
  • Precise fit and size for ease of installation

Wells 19898 Idle Speed Control Relay

Wells 19898 Idle Speed Control Relay
BESTSELLER NO. 13 in 2021
  • Precise, short-circuit protection
  • High-current welded connections for reliability
  • Semi-precious metal contacts
  • Precise fit and size for ease of installation

Replacing the Idle Air Control Valve to Fix Engine Stalls and Idle Problems

A rough running or stalling engine can be fixed by cleaning or replacing the Idle Air Control Valve. Here's how.

Rough Rider

One common problem with older cars is that the engine begins to run rough over time. It may not feel as smooth as it once did and may sputter when accelerating or pulling out. The engine may also stall when you come to a stop at red lights and stop signs. There are a number of things that could cause this symptom. An old, dirty or improperly gapped spark plug can lead to cylinder failure and a poorly performing engine. Damaged and cracked plug wires can also cause an engine to run rough. But what if you have already tried these basics and a few others like cleaning the fuel jets? There is another possible cause to a rough running engine.

Idle Air Control

The Idle Air Control Valve (IAC) is a device that controls the air to fuel ratio in modern fuel systems. A long shaft, called a pintle extends and retracts on a spring within a housing to control the amount of air around the throttle plate. The Electronic Control Module (ECM) controls the pintle and adjusts it as the engine runs. Over time, the Idle Air Control module can collect gunk and get dirty causing the pintle to not extend all the way into the housing. This can cause the engine to run poorly and stall.

Cleaning the IAC

Despite what some will tell you, the Idle Air Control can be cleaned in many cases. It will have to be removed from the engine, but standard carburetor cleaner will often clear out the gunk and allow the pintle to slide freely again. Remove the unit, spray the cleaner into the housing and work a rag into the housing to clear out any remaining dirt and debris. Be sure to wear proper protective eye wear. You may need to let the unit soak in carburetor cleaner for a while.

Replacing the IAC

Though the Idle Air Control can often be cleaned, it is really not necessary to go through the process. For many vehicles, such as the Ford Escape, a new IAC can be purchased for around $15.00. At this price it seems easier to just replace the unit rather than attempting to clean it. In most cases the IAC is mounted on the top of the engine in an easy to reach position. It is also usually only held on with two bolts. Simply loosen the bolts to remove the module. There is a plug wire attached to it that allows it to be controlled by the ECM. Unplug this plug. Once the old module is off, simply bolt the new one in it's place, being sure to use the new gasket between the module and the engine. Do not use the old gasket as this can be worn and may allow debris to enter the new module. Once bolted on, plug the wire plug into the new unit and you are finished.

Smooth Sailing

Start your engine and take the vehicle out for a test drive. You should be able to notice the difference immediately. The engine will run smoothly and you will no longer stall at red lights and stop signs.