Mercruiser 4.3 Mpi Idle Air Control Valve

Where is the IAC on a Mercruiser? (video)

https://www.youtube.com/watch?v=ROOlvjx38BU

How do you replace the idle control valve on a Mercruiser? (video)

https://www.youtube.com/watch?v=xWhopACfcWs

What should a 4.3 Mercruiser idle at?

It will idle at about 450 rpm in neutral. I can ram it up to 2000+ rpm and it keep it running but I can't slowly get it up there whether in neutral or in gear. I've changed the fuel filter, blew out the fuel lines, sea foamed the carburetor. It runs great once it's going but it's hammer down or stall. via

How do you adjust the idle on a Mercruiser? (video)

https://www.youtube.com/watch?v=o-K-10rgvUY

Where is the IAC valve located?

Locating the Idle Air Control Valve

The IACV is usually located on the intake manifold near the back of the throttle body. via

What does the IAC valve look like? (video)

https://www.youtube.com/watch?v=77p36-e0h88

Why do boats idle rough?

A rough or uneven idle can be an indicator of an engine that is misfiring. The air/fuel mixture is disrupted which can cause the engine to jump up and down. via

What is a MerCruiser 350 MAG MPI?

The 5.0L MPI MerCruiser sterndrive package typically has about 260-hp. The 350 MAG MerCruiser is called a 350 MAG and typically is rated at 300-hp. As you can see the engines are pretty much the same, except for the 15% difference in displacement and horsepower. via

What RPM should my Mercruiser idle at?

Engine should idle at 650-700 RPM with boat in the water, drive unit in forward gear and engine at normal operating temperature. via

How do you adjust the carburetor on a 4.3 Mercruiser? (video)

https://www.youtube.com/watch?v=jI_G6Z8_aiM

How do you adjust the idle speed on a Volvo Penta? (video)

https://www.youtube.com/watch?v=18nxYmCEYmQ

What sensors control idle speed?

The computer monitors idle speed by counting ignition pulses from the ignition module in the distributor or crankshaft position sensor when the throttle position sensor or throttle switch signals the computer that the throttle is closed and the engine is at idle. via

Can IAC cause hesitation?

Your IAC Valve May Be To Blame. You press down on your gas pedal and expect your car to take off smoothly, but that may not always happen. You might be experiencing hesitation due to a bad IAC valve (or idle air control valve). via

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