Thread: 71 350 running hot coolant backup up problem
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Old 02-08-2018, 01:42 AM   #105
Gregski
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Re: 71 350 running hot coolant backup up problem
Quote:
Originally Posted by clay68c10 View Post
I’d set the idle to around 650 in drive and see what happens. What’s it idling at in gear now?
So got my brand new digital Intelitronix tachometer hooked up finally, love it, and validated it against my Mac Tools digital timing light and they both read the same.

So the car idles at 800 RPM in Park and Neutral and drops to 600 RPM in gear ie Drive or Reverse.
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