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Starter Motor Or Battery?


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#1 cdk6468

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Posted 12 August 2014 - 12:37 PM

Hi I wonder if anyone can help. I changed the starter motor on our C-Max 1.6TDCI and it started up fine when everything was all back together, when I went to use the car later in the day it would not turn over. I took the battery off and charged it for a while, put it back on and it turned over fine and started up without any problems. I went to use it today and it would not turn over and just clicked when turning the key. I put a voltmeter on the battery and it was only reading 11.40 volts. The battery was changed about 3 months ago by a breakdown company so i.m not sure if it could be that. Any suggestions or advice would be greatly appreciated. Many thanks



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#2 stef123

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Posted 12 August 2014 - 01:08 PM

the clicking noise your hearing (presumably from the solenoid) would be a good indication there isnt enough juice. what does your volt meter read when you try to start the car?

using a volt meter on a static battery is far from testing it properly but 11.4v is low.



#3 karlos1987

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Posted 12 August 2014 - 01:25 PM

If it's the battery I would look at the alternator aswel. A battery should last longer than 3 months. Maybe the alternator is not charging the battery??

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#4 gregers

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Posted 12 August 2014 - 09:23 PM

test the battery when its running aswel just to see what the alternator is pushing back in?



#5 cdk6468

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Posted 21 August 2014 - 08:04 AM

Thanks for the replies, following on with this. Since i last posted I have been away and havent had a chance to try out the suggestions, but what I did do was charge the battery and when I switched off the charger it read 12.50. I left it in the garage and when I got back I put a voltmeter on it and it read 11.90. Should a battery lose this amount over the course of 7 days?.



#6 tommy88

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Posted 21 August 2014 - 10:49 AM

voltmeter should read at 14.2volts while car is running. if not then your alternator is weak.



#7 jeebowhite

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Posted 29 August 2014 - 09:57 AM

If the battery was just sat on the side with nothing touching it then no, it sounds like the cells are warped at best!

 

I think your going to need a new battery!



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