How can you test for IAC failure ?
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Old April 3rd, 2007, 11:43 AM   #1
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How can you test for IAC failure ?


It seems to be a new IAC valve for the 2.3 is about $100. I will buy it if I have to but I want to be sure its failed and not just dirty.


Is there a way I can test this ? Either way Im going to at least remove it and clean it out and give it another go before I open up the wallet for a purchase.

Please Advise

Thanks ,
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Old April 3rd, 2007, 12:40 PM   #2
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well how does the car act?
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Old April 3rd, 2007, 05:31 PM   #3
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its fine mostly during normal driving but when I let it idle like at a stop light it sputters and shuts off.


It does this in park as well. I filled up the tank w premium and ran it for a bit to see if it was some messed up gas but no go its still acting up. As long as I give it gas it's fine but when I come off it the car wont stay up.

it does this when the RPM's drop under 1k. but if I keep it over all is well
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1990 5.0 LX - Manual (for play)
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Old April 4th, 2007, 02:24 PM   #4
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yep thats it then, you can find a cheaper IAC from ebay or a donor, there all pretty much universal, the 5.0 ones should fit to
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Old April 6th, 2007, 11:58 AM   #5
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try cleaning it out first with some carb cleaner also I would try cleaning and re setting the TPS also.
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Old April 8th, 2007, 08:26 PM   #6
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Thanks


I cleaned it out and put i tback on and the issue was still the same so I was lucky enough to find another IAC for "FREE" and the car runs like a champ.

my tranny was acting up and rear was making noise so I got all that replaced as well.

Total cost of everything $250.00 - I love Georgia Salvage Yards
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1990 5.0 LX - Manual (for play)
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Old April 9th, 2007, 10:28 AM   #7
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haha if it isnt a junkyard its ebay
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Old April 9th, 2007, 11:26 PM   #8
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Originally Posted by TurboLX
haha if it isnt a junkyard its ebay
I prefer top call them "recycle facilities"
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Old April 10th, 2007, 01:58 PM   #9
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lol
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