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Old 07-07-2023, 11:28 AM   #1
alanwagen
 
Drives: 2015Yaris, Son's car, 10 Prius
Join Date: May 2010
Location: Texas
Posts: 181
Corroded Postive battery terminal

On a 2015 Yaris, the positive battery terminal has almost failed due to a massive build up of corrosion. I got a new terminal and will also replace the battery as I think it was leaking at the positive terminal.

My concern is the nut holding the wire to the terminal may be very difficult to remove. I have a mini-hack saw to cut the nut.

Any tips or tricks to do this easier? Thank you.
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Old 07-07-2023, 07:15 PM   #2
ex-x-fire
 
Drives: 2010 yaris 3 door hatch
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Tap a 6-point socket on to it, it should come loose.
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Old 07-09-2023, 01:42 AM   #3
bronsin
 
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Coat the terminals should be coded with a thick layer of wheel bearing grease. The corrosion will prevent corrosion. Should the battery case leak leak
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Old 07-09-2023, 09:33 PM   #4
alanwagen
 
Drives: 2015Yaris, Son's car, 10 Prius
Join Date: May 2010
Location: Texas
Posts: 181
I got it changed, it was very corroded. It didn't want to budge and it broke in half.

We also got a new battery at Costco which they provided a size 35 which was too tall and we had to go back and get a H5 which did.

Last edited by alanwagen; 07-14-2023 at 10:48 PM.
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Old 11-03-2023, 12:01 AM   #5
comk4ver
 
Drives: '08 Yaris
Join Date: Nov 2011
Location: LA, California
Posts: 14
Weird Octagonal Nut

Quote:
Originally Posted by alanwagen View Post
I got it changed, it was very corroded. It didn't want to budge and it broke in half.

We also got a new battery at Costco which they provided a size 35 which was too tall and we had to go back and get a H5 which did.
You too? How did the battery strap handle that? Is there a chance that you could take a picture of the fusible link? It's under the positive battery cover. Was there anything under that octagonal nut that broke?
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