Thread: Recall # WQC39 - ECM Reprogramming for Coolant Thermostat
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Old 12-12-2012, 01:33 PM   #92
whtchocla7e
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Quote:
Originally Posted by MannyO View Post
Actually noticed a bit of a fluctuation/dip at a few red lights where it dipped to 500 then back up to 600 on a 5-10 second interval.
Did you have ac/windshield fan/defroster on?
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