Car alternator

Asked by Oct 26, 2016 at 05:51 PM about the 2004 Honda Pilot

Question type: Maintenance & Repair

So on my Honda Pilot, I have noticed struggles with start
about 3-4 weeks ago. Towards recent, the car struggled to
start more often. The "struggle" was that the starter would
spin normally, but the engine "coughed" several times
before starting.
Recently, I tried unlocking the car, but the remote wouldn't
work since the battery was dead. After cleaning the
terminals with baking soda (they were all corroded), I
jumpstarted the car, and it started normally. Within 1-1.5
hours, turned off the car, and the next time it started
normally (the alternated did its job just fine).
Now the car is at a service, and they're suggesting they
should change the alternator. So the question is: could the
alternator go bad and drain battery once, but then operate
normally right after? Or is it probably something good else?

6 Answers

Sorry for misspels, autocorrect

56,595

If the alternator output is weak but not dead it could explain your situation. It also could be that your battery is going bad but not dead yet. If they tested the alternator output and it is low then go ahead and replace it.

1 out of 1 people think this is helpful.

They have tested the battery, looks like it ishould fine. They only suggested to change the alternator, and not really sure if it is the issue.

56,595

What voltage is the alternator putting out? It should be putting out around 13.8 to 14.5 volts.

56,595

If you don't trust the mechanic then get another opinion from one that you trust.

Unfortunately I don't know the results of the tests, but will check that and will take the car to another service. Thank you for your advice.

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