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Are ACV interchangeable for the s5 and s4

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Old 01-29-24, 05:33 PM
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Are ACV interchangeable for the s5 and s4

I have a bad acv for my 91 n/ but the the valve is dry rotted.
I have a automatic acv that could use parts from
Old 01-30-24, 08:48 AM
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NA? the S5 has the pickup for the 6 ports, so the whole valve won't work, but you can swap the guts
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Old 01-30-24, 06:39 PM
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Originally Posted by j9fd3s
NA? the S5 has the pickup for the 6 ports, so the whole valve won't work, but you can swap the guts
thank you! I took his part from an automatic ACV 88

I only need this weird part since mine is rotted

the automatic hasa spring on it. Mine never had the spring. Should I also transfer the spring to my 91 acv?
Old 01-31-24, 09:01 AM
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nah just keep it like it was
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Old 01-31-24, 11:19 PM
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Originally Posted by j9fd3s
nah just keep it like it was
I have a 91 n/a 5 speed transmission ACV. Im using the ACV guts from a 88 n/a Automatic. Just that weird pink plunger.
everything else works fine. The solenoids work when they should.
I wish there was an easier way to rebuils these Air Control Valves. New acv parts are expensive and hard to find.
Old 02-01-24, 08:50 AM
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Originally Posted by Trueno102
I have a 91 n/a 5 speed transmission ACV. Im using the ACV guts from a 88 n/a Automatic. Just that weird pink plunger.
everything else works fine. The solenoids work when they should.
I wish there was an easier way to rebuils these Air Control Valves. New acv parts are expensive and hard to find.
Mazda has a kit now, but its for the FD and S5 FC turbo FDXU-13-991
i see it for sale on Yahoo Japan Auctions, but nobody else seems to know about it


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Old 02-01-24, 11:36 PM
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Originally Posted by j9fd3s
Mazda has a kit now, but its for the FD and S5 FC turbo FDXU-13-991
i see it for sale on Yahoo Japan Auctions, but nobody else seems to know about it

wow! Thats awesome! Love how we find out about parts. Now we just need someone to compare them. Seems like they should be the same.
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