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HondaPlatinum, A Technician
Category: Honda
Satisfied Customers: 11334
Experience:  13 year honda platinum level
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Won't start, as if battery flat ..but battery volts are ok,

Customer Question

Won't start, as if battery flat ..but battery volts are ok
JA: Have you checked the battery, particularly the terminal connections? Are they corroded?
Customer: Terminals look ok
JA: What is the model/year of your Honda?
Customer: 2005
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Yes, tried another battery and using leads to jump start from another car , but still barely turns over starter motor
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 9 months ago.
Category: Honda
Expert:  Edward replied 9 months ago.

Hello, and thanks for your question. My name is ***** ***** I will do all I can to help.

Expert:  Edward replied 9 months ago.

Can you tell me what the battery voltage is when you attempting to start the vehicle, it should be around 12.5 volts now when sitting, but when cranking it it should drop, I would like to know what the voltage drops to when cranking.

Customer: replied 9 months ago.
it's 12.5 without load and drops to 11.3 whilst cranking
Customer: replied 9 months ago.
Are u still there buddy?
Customer: replied 9 months ago.
Eddie,I'm wondering if yr still helping me mate? I have 12.5 volts on battery , 11.3 when I'm cranking ( or trying) the starter motor ...., I'm in a very remote place and appreciate any assistance you can give me
Expert:  Edward replied 9 months ago.

Hello Jeff, sorry for the delay sir, It was 9 pm when I responded at 1 a.m. my time when you replied so I was already offline. It doesn't sound like voltage is dropping that much to signal a weak battery, What model Honda are you working on? and what size engine is it? thank you.