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voltage drop 

 

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 Post subject: voltage drop
Posted: Thu Jul 14, 2005 1:16 am 
Stock as a Rock
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Location: dandenong melbourne
VIC, Australia

i was wondering is there a problem with bosche alternators when idling the voltage drops when under load its an eb2 it had a mitubishi before and it was alright and my old ea did the same thing .i just bought it because alot of people said change to bosche .
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Posted: Thu Jul 14, 2005 6:23 pm 
Fordmods Junkie
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Ride: Kia Rio - 1.4L Auto

Power: 238 rwkw

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VIC, Australia

I thought EA to ED were fitted with Bosch, and Ford moved to Mitsubishi for EF onwards.

But anyways, I've seen this in a few friends EA's and EB's. It was either the drive belt was old, slipping or loose. Or the voltage reg was rooted, and a new alternator fixed the problem.
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Posted: Thu Jul 14, 2005 8:23 pm 
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QLD, Australia

What are are you powering at idle, a big amp, etc??

What is the voltage reading from a multimeter?

A bosch alternator is good because once you have one it is easier and cheaper to rebuild.
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Posted: Thu Jul 14, 2005 9:45 pm 
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nothing different a small sony amp just all the fairmont stuff its a fully reco alternater the mitsubishi had no problem at idle never moved this bosche one like at night with lights on its raining wipers on heater will a better earth cable between engine and body might help
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Posted: Thu Jul 14, 2005 10:28 pm 
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TAS, Australia

I have found that my dash gauge reads lower than what is really happening at the battery.

 

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