Wiring and voltage drops

[Pup]

I'm having a real power issue. The heater blower motors speeds up and down with engine acceleration and turning on multiple items eve the the turn signal seems to create a major power draw. I have a new generator and regulator and have the headlights run straight form the battery. I am considering one of the two available new wiring harnesses as the corrective action. Any other thoughts?

[Mill Knob]

I'm having a real power issue. The heater blower motors speeds up and down with engine acceleration and turning on multiple items eve the the turn signal seems to create a major power draw. I have a new generator and regulator and have the headlights run straight form the battery. I am considering one of the two available new wiring harnesses as the corrective action. Any other thoughts?

If it was me I would make sure

1. Make sure that the Battery is good.

2. Make sure that the Battery post are tight.

3. Make sure that the alternator is good.

4. Check all the grounds. On engine Block and frame.


Just a few things I would start with first.

[sparkchaser]

You said generator.What year is your bronco?If it has a generator instead of alternator,you would notice the voltage going up and down with rpms.The alternator did away with this problem.