For those who dont have a clue what Scorpio is on about...the IACV = Idle Air Control Valve - which controls your idle , in relation to the brake booster and coolant flow etc.
Disclaimer: The following is provided as a GUIDE ONLY, and neither myself nor Ozhonda take any responsibility for the outcomes of someone else doing the following. You follow these steps at your own risk!
Aim: Basically , on a older engine (D series or B series ) you may develop a slightly chugging idle for no apparent reason...AND if u press the brake the idle drops further ??? BEFORE you replace that engine , try cleaning ur IACV first !
Required: 1 x 12mm wrench , 1 x can of Carb/brake cleaner , 1 x phillipshead screwdriver and a old rag to absorb coolant leakage.
Steps:
Locate your IACV , which on D series engines its mounted on the rear of the intake manifold near the throttle body, and on F series engines its mounted towards the front of the car on the intake manifold near the throttle body.
Next , make sure your engine is off ofcourse , and then disconnect your Negative terminal upon your battery.
To remove it, all you need to do is take the 2 12mm bolts out, disconnect the electrical connection/s (simple plugs), and 2 heater lines that run to it. (note put a rag on the heater lines so it doesnt spill everywhere)
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Next , take some brake cleaner or carb cleaner and spray out the screen, which as you can see is very clogged on my lil ZC![]()
NOTE you can also take off the bottom part ( 3 phillips head screws) and inspect the gasket to make sure its clean and dirt free..and to check the small rubber grommet inside
After spraying a nice amount onto the screen...give a few hours or so to let dry - Then put back together and re-attach in the exact same method !
Idle problems may be gone!
Umm...only really beneficial to Older engines or more thrashed stallions remember....just to clense those clogged holes![]()
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