How to polarize the unit after battery change?

Asked by Dec 29, 2016 at 04:46 PM about the 2002 Ford F-150

Question type: Maintenance & Repair

If change d a battery in my f150,
After driving few miles my car do slow down to 30 Miller hr
Can't go faster .
What can couse that?

1 Answer

55,435

There is nothing to polarize. Polarization occurred many years ago when voltage regulators had to be polarized to generators. Is the check engine light on? If so get the vehicle scanned for fault codes and post them here.

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