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Thread: RPM drops when turning A/C on
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07-08-2007 #5
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- Join Date
- Sep 2004
- Location
- Fresno, Ca
- Posts
- 379
It's wired up so that when the A/C clutch is engaged, the positive feed also engages the solenoid. It seems like GM used a diode across the clutch to control feedback/spikes, but you can experiment. Look at a 70's/80's carbed GM for inspiration.
BTW- the solenoid grounds through the body, so it only needs a positive feed.
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