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The 560SEL idles right at 700 but when I put it in reverse rpms rise for a few seconds and then drop. Same if I put in drive...rpms rise for a bit and then drop back. Is this normal?
Also, when I returned from half hour run the other day car seemed to idle rough when I stopped in the driveway. But it roared down the highway at 75 smoothly :) Whats with that?:)
 

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Yeah that bump in the revs when changing from reverse to drive etc, mine raise a bit and go down too. Always wondered if it should, my new SEC is the same too though.
 

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Yeah that bump in the revs when changing from reverse to drive etc, mine raise a bit and go down too. Always wondered if it should, my new SEC is the same too though.
Both of my 1984 Euro 500SEC's do it.
 
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