IAC sits on the top of the motor.
Where is the iac valve located on 2004 dodge 5.7hemi
A bad IAC (Idle air control valve) or a vacuum leak or both.
On top of the intake in front of the throttle control. it has a two wire plug going into it.
iac valve...idle air control valve
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Its on the back of the throttle body.
Because the IAC valve is faulty.
The Idle Air Control (IAC) valve is mounted on the throttle body
REMOVAL & INSTALLATIONFig. 2 Detach the connector for the IAT valve and ...Fig. 3 ... remove the retaining bolts for the IAC and ...Fig. 4 ... lift the IAC valve off of the engineFig. 5 Remove and replace the gasket with a new oneFig. 6 Thoroughly clean the mating surfaces of the IAC and the engine# Disconnect the negative battery cable. # Remove the air cleaner inlet tube and the throttle cover, if necessary. # Disconnnect the wiring harness from the IAC valve. # Remove the two retaining bolts. # Remove the IAC valve and discard the old gasket. To install: # Clean the gasket mating surfaces thoroughly. # Using a new gasket, position the IAC valve on the throttle body. # Install and tighten the retaining bolts to 71-106 inch lbs. (8-12 Nm). # Connect the wiring harness to the IAC valve. # If removed, install the air cleaner tube and throttle cover. # Connect the negative battery cable.
The IAC (Idle Air Control) valve is faulty.
IDLE AIR CONTROL VALVE (IAC) Definition: An electrically-operated valve which allows air to bypass the throttle plate in a fuel injected engine to regulate engine idle speed. IDLE AIR CONTROL VALVE (IAC) The (IAC) is located under the Triton Plastic cover in the middle of the engine compartment. Very easy to replace. There are two bolts and one plug.It should only take you around 10 or 15 minutes to change. Buy it new; it doesn't even pay to clean it. It works half the times. But it will go bad eventually…