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1986 Views 7 Replies 6 Participants Last post by  Mikecl
GAUGES FLUTTERING...... tu.rn car off if you wait about3 minutes and watch speedo and RPM theyll go up, down and back to normal this Normal anyone else got this???
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This is normal. You will also hear the servo motors close the A/C dampers.
Armadaof1 said:
If you dig into the manuals you'll see a few reasons for the computer increasing the idle - normally due to an electric or mechanical load (air conditioner is the big one). The truck also idles fast until warm.

If it bothers you - you can always go to NAPA and retrofit a carb and a manual choke.
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