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Old 07-24-2001, 12:37 AM
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Join Date: Jul 2001
Posts: 23
What are the proper tachometer readings at idle when in Park, and while at a standstill in Drive for a '84 500 SEC? Thank you in advance for your reply.

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Old 07-24-2001, 10:44 AM
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Tach Readings

I've found that the best idle is always around 600 - 500 rpms for the 1984 500
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Old 07-24-2001, 11:40 PM
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Join Date: Apr 2001
Location: Beech Island, S.C.
Posts: 468
Every specs I've seen are for 750 +- 50 RPMs. Question? Are you having problems with fast idle it could be the over voltage protection relay. This relay can cause very fast idle situations.

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