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GVR-4 IAC Valve removal problem

Posted by 914 Cheeko, Aug 8, 2018

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  1. 914 Cheeko

    914 Cheeko Probationary Member

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    Newtown, Connecticut
    So i was removing my sh**ty IAC valve that came with the engine from DSM and when i tried slowly pulling it out the whole thing split apart into 3 sections (so far.) The first pic is how it came out once I unscrewed it. The second is what was stuck at first, but slid off. Now I'm stuck with the valve itself stuck in the port (third picture.) 20180808_153911.jpg 20180808_153927.jpg 20180808_153948.jpg How do I get this out? I'm afraid if i try pulling it out any harder than I tried it's going to break a piece off into my engine. WD40?
     

    Street Build 193  1

    1991 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4
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  2. rEclipserGST

    rEclipserGST Proven Member

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    You just split it in half. The two (2) phillips/10mm bolt is what holds the IAC on.
     

    Street Build 341  25

    1995 Eagle Talon TSi AWD
    187 whp · 200 lb/ft · 2G DSM
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  3. DSMFryGuy

    DSMFryGuy Probationary Member

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    what he said ^^
     

    Street Build 224  2

    1992 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
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  4. 914 Cheeko

    914 Cheeko Probationary Member

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    Newtown, Connecticut
    So am I f***ed or how would I get it out?
     

    Street Build 193  1

    1991 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4
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  5. Boomdeeze

    Boomdeeze Proven Member

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    Independence, Minnesota
    You take out the two 10mm bolt on each side and pull the sensor out.. The three screws you took out are what hold the two pieces of the sensor together. You can see one of the 10mm bolts in the last picture you posted.
     

    Street Build 3K  1

    1997 Mitsubishi Eclipse GSX
    10.793 @ 128.98 · 2G DSM
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  6. tametalon92

    tametalon92 Supporting VIP

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    Rathdrum, Idaho
    I'm sorry. Nothing to contribute. But I giggled at this a bit...:oops:
     

    Street Build 200  7

    1997 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM

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    1992 Eagle Talon TSi AWD
    manual · 1G DSM

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    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  7. chrysler kid

    chrysler kid Proven Member

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    You're screwed (you unbolted the wrong bolts you twaat) . There are still 2 more bolts behind the half of the sensor you removed

    20180810_214358.jpg



    Remove those two screws so the hole looks like this


    20171128_220037.jpg
     

    1K  15

    1998 Mitsubishi Eclipse GST
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    1996 Mitsubishi Eclipse GST
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  8. 914 Cheeko

    914 Cheeko Probationary Member

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    Well f*** me in the ass I got the wrong IAC too.
     

    Street Build 193  1

    1991 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4
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  9. Dsm panda

    Dsm panda Proven Member

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    Franklin, Wisconsin
    Dis you get the 90s one? Or is it black not brown?
     

    860  2

    1991 Eagle Talon TSi
    327 whp · 307 lb/ft · 1G DSM

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    1990 Plymouth Laser RS Turbo
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  10. chrysler kid

    chrysler kid Proven Member

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    Just save yourself time and stress and remove the throttle body to replace the iac
     

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    1998 Mitsubishi Eclipse GST
    fwd · automatic · 2G DSM

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    1996 Mitsubishi Eclipse GST
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    1996 Mitsubishi Eclipse GST
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  11. Jamesberry2382

    Jamesberry2382 Probationary Member

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    Agreed it's easier if you pull the throttle body
     

    270  1

    1992 Plymouth Laser RS Turbo AWD
    awd · manual · 1G DSM
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  12. steve

    steve DSM Wiseman

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    St. Charles, Illinois
    How so? There are three, the 90 style, the original metal 91+, and the new plastic 91+ version. The 91+ plastic version is the preferred version if you have a 91+ ISC/IAC since it's less likely to short out and damage your ECU.
     

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    1991 Mitsubishi Eclipse GSX
    manual · 1G DSM
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  13. Dsm panda

    Dsm panda Proven Member

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    Not to mention I made the revised plastic one fit my 90 and if you bought from a parts store that's the one you get?
     

    860  2

    1991 Eagle Talon TSi
    327 whp · 307 lb/ft · 1G DSM

    Street Build 504  2

    1990 Plymouth Laser RS Turbo
    fwd · manual · 1G DSM
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  14. 914 Cheeko

    914 Cheeko Probationary Member

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    It came with the brown one which I heard are constantly defective. I bought a black one, now I just need to get the stripped screws out.
     

    Street Build 193  1

    1991 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4
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  15. 914 Cheeko

    914 Cheeko Probationary Member

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    Yeah it had the brown one. I am installing a newer black one hoping that fixes my stalling issue.
     

    Street Build 193  1

    1991 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4
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  16. 914 Cheeko

    914 Cheeko Probationary Member

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    I bought it on Ebay but it said it would fit. I have no idea why they sent me only half of it.
     

    Street Build 193  1

    1991 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4
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  17. rEclipserGST

    rEclipserGST Proven Member

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    Post a picture of this part you speak of.

    Did you use a screw driver or an 8mm socket?
     

    Street Build 341  25

    1995 Eagle Talon TSi AWD
    187 whp · 200 lb/ft · 2G DSM
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  18. 914 Cheeko

    914 Cheeko Probationary Member

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    It was the front/top of it without the part that attaches to the manifold. I was able to get the part off that this replaces but I couldn't get the rest of it off where the valve was, so it wouldn't fit. I used a screw driver because it had the rounded edges, it won't fit a socket. The full part does though. The full part has 2 bolts, this one has 3.
    20180906_095132.jpg
     

    Street Build 193  1

    1991 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4
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  19. pauleyman

    pauleyman DSM Wiseman

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    You may just want to start over. Get a complete new isc and install.
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    manual · 2G DSM
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  20. We're on Boost

    We're on Boost Proven Member

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    Seattle area, Washington
    What's up with the 3 bolt flange on the one you are showing? That looks like the one used by the Evo 8, which has a 3 bolt flange.
    I know like nothing about GVR-4, but Rock Auto shows the familiar 2 bolt flange ISC/IAC for the 1991 GVR-4.

    Rock Auto has good pics what it should look like. Usually their prices are good too, but I see the price on this item has doubled since I bought mine about a year ago!!

    Anyway, here, the IAC section for your car:
    https://www.rockauto.com/en/catalog...,fuel+&+air,idle+air+control+(iac)+valve,6072

    and here, the "info" for the Airtex/Wells. That picture, you can scroll through it, there are 5 pics there.
    https://www.rockauto.com/en/moreinfo.php?pk=944131&cc=1103050&jsn=10
     
    Last edited: Sep 6, 2018

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    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  21. We're on Boost

    We're on Boost Proven Member

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    But for the 1991 Talon, they still list the Standard Motor Products "AC146" for less than the price a year ago.
    This is what I expected to see for your car. I don't know why they don't show it there. But this is what I have in my car, the Standard Motor Products AC146. It seems fine. I just had to swap some wires around because mine is a 1990.
    1991 Talon ISC at Rock Auto, September 2018.PNG
     

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    1990 Eagle Talon TSi AWD
    650 whp · 510 lb/ft · 1G DSM

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    1990 Eagle Talon TSi AWD
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  22. 914 Cheeko

    914 Cheeko Probationary Member

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    Newtown, Connecticut
    The 3 bolt one is only half of the IAC for the 2g 4G63T I have. The other half that connects to the intake manifold that holdes the actual valve in place has 2 bolts. It doesn't have the stock GVR4 engine, it has a swapped Eclipse GSX 4G63T.
     

    Street Build 193  1

    1991 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4
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  23. We're on Boost

    We're on Boost Proven Member

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    Seattle area, Washington
    The part of it that was stuck, did you ever get that out?
     

    3K  17

    1990 Eagle Talon TSi AWD
    650 whp · 510 lb/ft · 1G DSM

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    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  24. steve

    steve DSM Wiseman

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    You have me scratching my head wondering exactly what you need help with at this point?
     

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    1991 Mitsubishi Eclipse GSX
    manual · 1G DSM
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  25. 914 Cheeko

    914 Cheeko Probationary Member

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    Joined Jul 10, 2018
    Newtown, Connecticut
    I don't need help anymore all I need to do at this point is get these rusted and stripped screws off
     

    Street Build 193  1

    1991 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4
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