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2000 Mitsubishi Mirage IAC Replcement

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13 Jul 2019 14:39 #31753 by popoften
2000 Mitsubishi Mirage IAC Replcement was created by popoften
I need to replace this IAC motor, as discovered by following scannerdanner’s diagnostic procedures.

Problem is, the screws holding the old IAC to the throttle body absolutely will not budge. I have already started to strip one of them. I know I need to try penetrating oil, but once that doesn’t work (sorry about my pessimism) what else can I try?

Thanks, Pop

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14 Jul 2019 08:53 #31776 by Tyler
Replied by Tyler on topic 2000 Mitsubishi Mirage IAC Replcement
You'll probably have to get medieval on these screws. :evil: I have some ideas, but you'll probably end up replacing those screws by the time you're done.

First idea is to use a cutting wheel to cut a single slot in the screw head. Make the cut as square as possible. That'll allow you to use a bigger flat head screwdriver, or maybe even a couple gentle taps from an impact driver.

Speaking of, if you haven't tried an impact driver yet, it's definitely worth a shot.

www.amazon.com/TEKTON-2905-8-Inch-Manual-7-Piece/dp/B000NPPATS/

Next would be to (gently) put the TB in a vice and use a small chisel and hammer on the edge of the screw head to get it turning. I've done the same thing many times with an air hammer and chisel bit. The vibrations from the air hammer often help to break the screw loose.

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15 Jul 2019 08:31 #31822 by popoften
Replied by popoften on topic 2000 Mitsubishi Mirage IAC Replcement
Thanks, Tytler! I ended up taking it to a guy I hired to get them out. He used a cordless Makita Impact Driver. I hadn't thought of that route. He had to bear down pretty hard, but the screws did come out cleanly. I have the new IAC on the TB, now I just need to get the TB back on the car.

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18 Jul 2019 12:00 #31923 by popoften
Replied by popoften on topic 2000 Mitsubishi Mirage IAC Replcement
And car is now all back together and idling and running like a champ. THANKS GUYS!

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29 Jul 2019 08:09 #32209 by popoften
Replied by popoften on topic 2000 Mitsubishi Mirage IAC Replcement
I forgot to add that the throttle body was VERY DIRTY. I am amazed the car ran at all. I gave it a good cleaning while I had it out.

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29 Jul 2019 08:34 #32212 by Tyler
Replied by Tyler on topic 2000 Mitsubishi Mirage IAC Replcement
Nice fix, sir! B) Just be careful - you got it idling right, now they'll expect it to run right...

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