Question about 2004 Ford Focus
Defective alternator. on a ford you may kill new the alt. if the battery is not charged full at time of installation.
Posted on Oct 24, 2010
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Posted on Jan 02, 2017
SOURCE: Changed a bad alternator, new
check your battery make sure it is able to take a charge. ,if the amps are good check your connection, from altenantor to battery. check voltage drops, battery drains. Your problem most likley seems to be
your battery. Your starter might also be draining your battery. You ll find the problem keep looking.
Posted on Apr 25, 2010
1) check 10A fuse in the batt. juction box (eng. comp.) hot at all times.
2) check the large red battery wire to the alt. for good conn.
3) make sure the alt. is grounded properly
4) gray wire sent from the alt. to the PCM
5) blue wire sent from the PCM to the regulator (alt.)
6) small red wire power frorm the 10A fuse
if all checks out and still not charge replace the alt.
Posted on Sep 12, 2010
disconnect the battery & make sur you have your radio code, then remove the belt.
it's pretty simple there's a nut in the middle of the tensioner wheel, get the right size socket & using a ratchet, move the tensioner by locking the rathet & do or undo the nut, as it's a fixed nut used to swivel the tensioner.
Then undo the wiring on the back of the alternator, usually a click in multiplug and a + power cable boted on with a 10mm nut.
then remove anything in the way of the alternator securing bolts, & remove the bolt's, alternator should be free !
But I don't suggest you do it yourself unless you have a reasonable grasp of mechanics, as I have had to do this job properly after some people have tried themselves & they've made it worse, plus once the belt's off you have no power sterring so you can't drive it to the garage if you can't get the belt back on !
Posted on Sep 19, 2009
Sounds to me that your battery has shorted out and will not take a charge.Disconnect the battery and try to charge it, then check to see if it has taken power with a volt meter. A shorted battery will take all the power from the alternator and run it to ground leaving no power to run the car. Also check the alternator output with a volt meter after you have checked the battery as a shorted battery can burn out the alternator.
Posted on Oct 08, 2010
I have similar problem, I repaired the alternator using a voltage regulator and brushholder (new) taken from a new alternator for a Ford Fiesta (I think) when I refitted it the charging light still stayed on. I cleaned the multiplug where it goes through the bulkhead to the PCU and the charge light now goes out but the headlights now flicker and it seems that the voltage is varying or 'pulsing'. I do not know where the fault is now and am looking at an expensive visit to a Main Dealer.Any suggestions or help appreciated
Posted on Jan 13, 2011
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