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Old 09-14-2007, 08:45 PM   #126
txl146
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I replaced the gasket, but since then minor rough idle started to develop. I used a MAF sensor cleaner to clean it out...
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Old 09-20-2007, 07:15 PM   #127
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i cleaned it, but my idle is stilll high. it also sounds like a lawnmower when it is idling at 2500.

do i need to buy another IACV?
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Old 09-24-2007, 10:38 PM   #128
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Did this today. Worked like a charm. Used Castrol Super Clean and THAT worked like a charm. Couldn't believe the amount of black bits of crap the came out (carbon? grease? dirt?). Anyhow, this is an easy DIY that makes a big difference.
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Old 10-05-2007, 12:19 AM   #129
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Did anyone open up the sensor instead of just spraying with the cleaner?
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Old 01-07-2008, 11:21 PM   #130
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Quote:
Originally Posted by wrxrex View Post
Did anyone open up the sensor instead of just spraying with the cleaner?

????
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Old 01-08-2008, 07:10 PM   #131
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bumping an old thread..

But for allof you guys who tried this.. were your idling problems like gradual like it was always bad at idle?

Because in my situation, the cars been running fine and then all of a sudden it started to idle at 2k. Wasn't like it had messed up idles from before, it was just out of no where. Could this sti be the iacv?
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Old 02-17-2008, 08:56 PM   #132
seherman
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Question 02 legacy outback idles down

What a thread! Our 02 Legacy outback wagon 2.5 L idles down at a stop to under 500 rpm, then bounces back up. It cycles every 5 to 10 seconds. Should I do the GM engine cleaner treatment as described?
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Old 03-02-2008, 03:12 PM   #133
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Thanks scooterforever!! Good job!!
I had no problems with mine, but did it anyway. At least it is clean!!
Also no problems with screws, just used flathead, pushing it downwards, when twisting, and worked fine.
I got mine bolts from Ace Hardware, was like $3 for bolts, flat washers and lock washers. Whole thing took me about 20 minutes.
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Old 03-03-2008, 06:35 PM   #134
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I did mine over the weekend.

Be very careful when you tighten down the machine screws. I managed to strip out both holes. Luckily I had the correct size helicoil and I was able to fix the damage.

Still, I would have rather not ****ed things up.
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Old 03-04-2008, 12:58 PM   #135
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i need to do this...my car doesnt idle at a stop like it used to.
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Old 03-04-2008, 08:18 PM   #136
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So not only did this not improve my idle, now my boost gauge doesn't top out where it used to. I used to max out at 100kpa(14.5psi). Now it falls just short of that. I didn't install the gauges, but there is a difference between now and last week.

Everything feels fine. WTF?
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Old 03-05-2008, 06:29 AM   #137
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Quote:
Originally Posted by 1904WRX View Post
So not only did this not improve my idle, now my boost gauge doesn't top out where it used to. I used to max out at 100kpa(14.5psi). Now it falls just short of that. I didn't install the gauges, but there is a difference between now and last week.

Everything feels fine. WTF?
Your gasket is not sitting well, so You got air leak there...
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Old 04-02-2008, 08:20 PM   #138
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can i do this with my automatic 2.5 01 legacy sedan, i've been having this issue quite a bit and my car stalled today while fully stopped. I know nothing about cars, i assume i'm supposed to look near the air filter for IACV?
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Old 04-04-2008, 09:05 AM   #139
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Quote:
Originally Posted by Rawker View Post
can i do this with my automatic 2.5 01 legacy sedan, i've been having this issue quite a bit and my car stalled today while fully stopped. I know nothing about cars, i assume i'm supposed to look near the air filter for IACV?
It's on the throttle body.
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Old 04-07-2008, 08:43 PM   #140
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well i got some intake cleaner spray and tried it out but now my car sounds like a 16 year olds honda when my rpm's are in the 3000-4000 range
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Old 04-07-2008, 09:37 PM   #141
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^^^ Did you use a new gasket, or did you resue the old one?
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Old 04-07-2008, 09:47 PM   #142
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sorry i should have mentioned that i just tried the spray cleaner into the manifold not removing the IACV and cleaning. the noise comes from the front, not the back so it's not the exhaust and it's a plastic sound not metal.

forgot to mention that i got a check engine light as well lol.
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Old 04-07-2008, 10:26 PM   #143
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Only reason come trough my mind is that some deposits removed by cleaner got to MAF sensor, and blocked it stuck closed... or preventing it to open beyond some angle.
I would say to take sensor out, clean it using 90% alcohol and Q tips, like I did. Soak it in alcohol is good idea. Then put it back, replace gasket with new, reset the ECU, and try again.
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Old 04-08-2008, 03:54 PM   #144
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Hey this is a great write up and I'm definitely doing this once things start to warm up, however I have two questions. Can I take out the IACV completely, or do I need to clean it while its still attached to the car. Also, to reset the ECU do you recommend detaching the battery and letting it sit for a little? Thanks for your help, you're the man.
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Old 04-08-2008, 06:00 PM   #145
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Quote:
Originally Posted by Ekeenan86 View Post
Hey this is a great write up and I'm definitely doing this once things start to warm up, however I have two questions. Can I take out the IACV completely, or do I need to clean it while its still attached to the car. Also, to reset the ECU do you recommend detaching the battery and letting it sit for a little? Thanks for your help, you're the man.
You can take it out completely. Disconnect battery before You start cleaning, connect after finish. It will be long enough. Usually 30 sec do the job.
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Old 04-08-2008, 11:16 PM   #146
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Quote:
Originally Posted by Ekeenan86 View Post
Hey this is a great write up and I'm definitely doing this once things start to warm up, however I have two questions. Can I take out the IACV completely, or do I need to clean it while its still attached to the car. Also, to reset the ECU do you recommend detaching the battery and letting it sit for a little? Thanks for your help, you're the man.
Like mentioned in the original post, remember to get a new gasket when doing this. In my case the old gasket didn't rip, but still it is a precaution to put in a new gasket. I just finished cleaning it about 20 minutes ago. I used a flat screwdriver to take out the 2 screws, pressed it hard, and the screws gave way, without destroying them. Take your time it took me 45 min. from start to finish. I used some wd-40 and alcohol plus q-tips to clean it.

To the OP, great write up!
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Old 04-11-2008, 06:43 PM   #147
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my engine looks like this, where is the IACV?

note this is not my picture
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Old 04-12-2008, 06:24 PM   #148
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Pulled the IAC out of my 96 Legacy 2.2 and was wondering do I remove the bolt on the bottom? Or do I just leave it intact and spray cleaner into the opening where the gasket sits over and let the dirty stuff drain out the same opening?

Thanks!

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Old 04-16-2008, 09:44 AM   #149
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Awesome thread. This was suggested to me, after I posted on LegacyGT.com regarding my wife's '01 Outback H-6 LL Bean:

http://www.legacygt.com/forums/showthread.php?t=83882

I have the gasket on order, and picked up some carb cleaner and PB Blaster, last night at the auto parts store. Going to the hardware store today, to get the 5x20mm hex bolts. (Though I guess they don't have to be hex-head...)
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Old 05-19-2008, 12:35 PM   #150
WC LATHE WERKS
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going to try this soon
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