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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Ac vsv hissing when on normal?

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Old Jul 30, 2019 | 02:03 AM
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From: Sumter SC
Ac vsv hissing when on normal?

No hissing when the AC idle up vsv is off, just when the AC is on. Is the normal or is this going to cause a lean condition when the AC is on?

(I double checked and the hoses are not reversed)

I'm worried because my front cylinder spark plugs look like they are lean and wondering if this might be attributing to that.
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