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Sucking vs. Blowing
Posted by 94 9000 CSE T (more from 94 9000 CSE T) on Wed, 13 Jun 2001 20:09:38
In Reply to: Well, its the APC., Jay S, Wed, 13 Jun 2001 18:44:23
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I am getting confused about when to suck and when to blow. Let me see if I can get this straight.
For the APC solenoid valve, you BLOW (into each of the C,W,R ports). With engine idling, all hoses disconnected, and the valve electrically connected, you should be able to blow into ALL ports. With the valve electrically disconnected, you should be able to blow into ONLY TWO ports.
For the turbo bypass valve, you SUCK (from the small vacuum port). You should NOT be able to suck. [Should engine be on? off? doesn't matter?]
Instead of just memorizing and blindly following these tests, what would be nice is if there was a detailed description of the internal construction and operation (both normal and faulty) of these valves, so that the rationale behind these tests could be understood.
Posts in this Thread:
- Well, its the APC., Jay S, Wed, 13 Jun 2001 18:44:23
- Sucking vs. Blowing, 94 9000 CSE T, Wed, 13 Jun 2001 20:09:38 <-- Viewing This Message
- Try cleaning the APC selonoid with fuel injector, do it several, Daren, Wed, 13 Jun 2001 19:07:50
- told ya so...., Chad, Wed, 13 Jun 2001 18:55:26
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