Car Repair World

Idle Control Valve Replacement Safety Tip: Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Refer to your vehicle's owner's manual for the specific location of your OBDI or OBDII connection. 2 Turn your key to the ON position so that the scanner can receive the code(s). 3 Plug your scan tool into the OBD connection, turn on the scan tool and select the appropriate steps to read the code. 4 Refer to a vehicle specific repair guide for resistance specifications for your engines idle control valve. If the resistance is out of specifications, the TPS must be replaced. 5 Locate the idle control valve. 6 Disconnect the idle control valve from its mounting point and wiring harness. 7 Install a new idle control valve along with a new gasket. Clean the mounting surfaces of the old gasket prior to installation. 8 Erase...

Performing a Valve Job Safety Tip: Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Open the hood and make sure it is properly secured 2 Locate the vehicle's battery and disconnect the negative battery cable from the battery post. Photo may not be specific to your vehicle 3 Remove the lower radiator hose. Photo may not be specific to your vehicle 4 Drain the cooling system. 5 Remove the air filter and air intake system. Photo may not be specific to your vehicle 6 Disconnect all rubber vacuum hoses. 7 Disconnect all linkages or cables that may be routed on top of the engine. This will allow easier component access and free up space. 8 Locate the vehicle intake manifold. 9 After locating the intake manifold, remove any hoses, pipes or linkages that will be attached the intake manifold. 10 After removing ...

Idle Air Control Valve Working Of  IAC Valve Helpful Information When an idle air control valve fails it can cause the engine to idle erratically and even stall. Sometimes a weak idle air control motor will can cause engine problems without triggering a MIL (check engine) light. Inspect vacuum lines when servicing the idle air control valve and replace any that are broken or dilapidated. Step by step explanation on how an automotive idle air control valve works. Though various manufacturer's create different styles of valve, the concept is the same. Step 1  - The idle air control valve is located on the throttle bore (in most cases) and is designed to adjust engine air intake at idle which controls the engine idle speed. The PCM receives feedback data from various sensors to send output signals designed to adjust the air passage open or closed which adjusts the engine idle speed. At engine speeds above idle, the valve is not used and does not effect the engine. E...