Battery not charging. But is not the alternator

2003 Ford KA 1.3
Car: Ford KA
Year: 2003
Variant: 1.3
Categories: Electrics, ECU, Warnings & Lights
Hi i have a Ford Ka Collection 1.3 year 2003.
The problem is the battery wasn´t charging,i had new alternator fitted that cost me £250 but the problem still occured.
I took it to my local garage but they couldn´t find the problem.
So the guy said to me that when he plug computer in,battery doesn´t charge.
Now the Battery light is on dashboard because the plugs disconnected.
Computer is disconnected from battery at the minute and runs okay,but i think is not advisable to run the car like this.
Without computer plugged in it could overcharged battery and break battery.
Engine temp warning light keeps going on and off.
Anyone have any ideas what the problem could be and if it would be expensive to repair?
Many thanks
Kind Regards
Problem added: May 21, 2013 (10 years ago)
hi you should never run engine with alternator disconnected it will damage it think your car will have a smart charging system and if so it should be fitted with a calcium battery if it has lead acid battery it may not charge properly check this out before spending any more money
Answered May 22, 2013 (10 years ago)
Hi
Many thanks for your reply.
I think the car is not overheating.
A friend said to me that there's a smart charge system on this car if you unplug the 3 pin plug off the alternator it reverts to being a normal alternator and will charge the battery ok and the battery warning light will be on.
He wondering if there's a problem with the wires near the plug as they can break or a problem with the smart charge ecu.
The temp warning light coming on and off could be a faulty sensor.
Im wondering how much would this cost to repair?The smart charge system and the faulty sensor of the temp light coming on and off?
I have a friend that is interested in buying the car as it is ( the MOT will run out next month),but i dont know what a fair price will be.
Have you have any ideas please? The cars is in excellent condition inside and outside,no rust( i would say almost mint for the age of the car 2003).
Many thanks
Kind Regards

Answered May 22, 2013 (10 years ago)
wise car buyer is good for car prices
Answered May 23, 2013 (10 years ago)
Many thanks
Regards
Answered May 23, 2013 (10 years ago)

This problem is archived

If you're having a similar problem please click below to re-post this problem, you can then customise it to suit your situation.

Helpful & Related Pages on AutoInsider

More problems with the 2003 model year Ford KA

We have 47 problems and solutions in our database for this model year of the car.

View all Ford KA Problems