2012 sluggish after oil change

Lawfarin · Sep 6, 2019

Hook78 said: ↑

I had the same reaction. But, if the alternator is running and the battery drops off (say due to connector corrosion), is the truck smart enough to regulate the alternator voltage output sans battery load? I wonder if any electronics could be damaged by the alternator compensating and putting out too high a load. Could the ECU itself be damaged?

Edit: rereading the original post, battery was disconnected with engine off, so regardless of the answers to the above questions sounds like it’s not the sequence of events in this case.
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The alternator voltage is regulated by the ECU. Unless the alternator is failing there will be no harm. The modules are usually designed to run to run off varying voltage. I believe they can be rated to 18v, perhaps even up to 24v. Unless the full wave rectifier is failing and AC is making its way into the system, everything is pretty well protected. In fact that’s one helpful thing a battery does perform is helping to eliminate pulsating DC currents/AC currents.

StinkPickle · Sep 9, 2019

Wow baking soda works awesome. Thanks for the tip. Waiting for the sealant\gasket maker to cure on the roof rack while it rains all this week. Hopefully runs better. It was starting to run better but not like it was before I removed the cables.

EnonEye · Sep 9, 2019

Oh---Oh It's like a BAD WRECK -- I can't stop looking... hideous - LOOK AWAY!

Jimmyh · Sep 10, 2019

Lawfarin said: ↑

The alternator voltage is regulated by the ECU. Unless the alternator is failing there will be no harm. The modules are usually designed to run to run off varying voltage. I believe they can be rated to 18v, perhaps even up to 24v. Unless the full wave rectifier is failing and AC is making its way into the system, everything is pretty well protected. In fact that’s one helpful thing a battery does perform is helping to eliminate pulsating DC currents/AC currents.
Click to expand...

Alternator voltage is regulated by the Voltage Regulator Circuit inside the alternator... Just for accuracy.

https://www.customtacos.com/tech.ol...6toyewd/06toypdf/ewd/2006/tacoma/h/em01d2.pdf

StinkPickle · Sep 11, 2019

Truck ran waaay better today after cleaning with baking soda. Thanks for the advice

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2012 sluggish after oil change

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2012 sluggish after oil change

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