Dear Friends,
I have 2001 model ford focus. Yesterday battary warn light turned on and took car to electrician. Electrician checked accumulator, it was charging and there is not any problem he said. After checked generator. The voltage out from generator was 14.1-14.3 Volt. He said its ok also, but still battary warn light is on. When i start the car the light is of but during 2 minutes it the battary light turnes on.Do you have any ideas what could be reason of that? Im in Georgia, Tbilisi so that mostly local masters dont understand the system of US cars. Thank you in advance.
2006-10-27 17:43:52 · 6 answers · asked by mamurica 1 in Cars & Transportation ➔ Maintenance & Repairs
The PCM actually turns the light on. It controls the voltage/amperage output of the alternator based on temperature (IAT) & load conditions. So it is seeing something it doesn't like in regards to amperage output vs demand when the car is running.
Testing the voltage output only shows pressure output and not actually current output which is a major difference. I would have the alternator load tested for amperage output. I have seen many alternators put out good voltage, but poor amperage. Load test the alternator and see if the diodes are ok and if the amp output is within spec.
2006-10-27 18:11:47 · answer #1 · answered by Marc87GN 4 · 0⤊ 0⤋
Take your vehicle to a local auto parts store like autozone and have them do a load test on your battery.It is free of charge. From the sounds of it, the battery seems to be going bad but get it checked out for sure.Good luck.
2006-10-27 22:40:35 · answer #2 · answered by brian m 2 · 0⤊ 0⤋
With a cold engine, remove the radiator cap. Start the motor. If the coolant is not being pulled from the radiator well enough, you have a water pump issue. That would be the best guess, since you've replaced the thermostat and checked for leaks.
2016-05-22 02:25:32 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It could be a diode in the alternator and still charge.Take the alternator of and take it to a parts store where they check them and have it checked to see what is wrong.
2006-10-27 18:09:38 · answer #4 · answered by Old man wrench 4 · 0⤊ 0⤋
probably the battery. take it to ur shop and have them do a load test on ur battery. if it goes bellow9.5 volts its bad. if at 10 low but still good.
2006-10-27 18:04:40 · answer #5 · answered by Anonymous · 0⤊ 0⤋
go back to a authorised ford service centre
2006-10-27 19:58:26 · answer #6 · answered by Anonymous · 0⤊ 0⤋