Intake Manifold Check Valve

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07-30-02, 03:27 PM

yearrgh

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Intake Manifold Check Valve

Is it normal for the intake manifold check valve to become covered in sludge. And how bad is it when the valve is stuck?

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07-30-02, 03:48 PM

Aaron Cake

Engine, Not Motor

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You're going to have to be more specific as to which valve...There are 4 check valves on the intake I can think of off hand...I assume this is a '90 TII?

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07-30-02, 03:58 PM

yearrgh

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90 tII. the one under the air control valve above the turbo

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07-31-02, 09:37 AM

yearrgh

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still hoping for an anwser...

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07-31-02, 12:02 PM

Aaron Cake

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Yep, it's pretty normal. You can clean it by soaking in carb cleaner for a few minutes, then rinse off.

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