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Ford Focus Electrical and Lighting Problems

mod7mod7 Posts: 13
I own a 2004 Ford Focus ZTS. In the last couple of days the Brake Light goes ON & OFF when I am driving. Sometimes it goes on when I am stepping on the brake and sometimes it goes on even when I am not braking. Most of the time it is off.

I am taking it to my Ford dealer tommorow. I have the car for just about a yr and have less than 5,000 miles on it. I just hope it has nothing to do with the ELECTRICAL system. The last car that I had was ruined by SQUIRRELS chewing into the electrical wires and I am hoping this light going on has nothing to do with that. The last time the squirrels bothered me it was in the dead of winter so I am hoping it is a different problem this time. Any ideas why the Brake light would be going on? The brakes seem to be working OK. I have ABS. Thanks. :confuse:


  • lostlost Posts: 64
    Check the brake fluid level in the master cylinder.If it gets low it will trigger your brake light. If the fluid is low you have a leak someplace and it needs to be checked out. My 05 ZX4 SES developed a leak about a week after picking it up.
    The master cylinder was leaking out of the back right where it is bolted to the brake booster. The dealer replaced the master cylinder and the brake booster.
  • mod7mod7 Posts: 13
    Just an Update: My Ford dealer said the brake fluid was low and put some in.

    I am still a bit confused-- because 3 weeks ago I asked an auto mechanic in our local shop to "top off" ALL my fluids. He said he did. So now I am not sure if he just forgot to check the brake fluid or if I possibly have some kind of leak that has caused the brake fluid to get low in just 3 weeks. I guess I will wait a couple of weeks to see if the light goes on again. Thanks
  • mod7mod7 Posts: 13
    Thanks LOST, I did not see your post till after I posted. I will keep an eye out to see if the brake light goes on again. Could you actually see the brake fluid on the ground under your car? Thanks
  • lostlost Posts: 64
    The brake fluid was running down the front of the brake booster and down onto the firewall. I did not see any fluid on the ground.
  • I have a 2001 ZX3 with 151000 miles and it has been the most reliable car I've owned in my entire 37 years of driving. Having said that, there has been one isolated issue that only happened once, but is so bazaar I have to ask. I was driving with my cruise on at a cool 75 and all of a sudden all of my guages, radio, air went dead, headlights went dim, but the car kept running smooth and quiet like nothing happened. Just as I got to my exit everything came back to normal. As I said it only happened once, I have since changed the battery since it was 4 years old, and it hasn't happened since. I thought that if the power went, so went the engine because the fuel pump is electric, and injectors are electrically run. Has anyone had this happen? Ford has said they have had no such reports even from an isolated occurrance at a dealership.
  • Did replacing the alternator solve the problem? I have already had two alternators put on my car now, with a between trip to the dealership telling me it is a bad alternator creating the problem. The bench tested the removed new alternator and it was fine. The new one just installed is having the same problems. I've got insufficient voltage, which probably means it is something like the voltage regulator or there is a screwed up ground somewhere. I just want to know if anyone has come up with a solution. They want to charge me by the hour to screw around with it to find the problem. Doesn't sound like a good option to me when I have already spent way too much working on this thing with the towing, etc.
  • We have had this problem on a 2002 ZTW Focus. The gauges would act funny and the car would not restart after it was stopped during the spring/summer of 2005 (with just over 60K miles).

    The first fix (private mechanic) was removing the corrosion from all the connectors for the starter under the car... the problems was fixed for 3 months.

    When the problem occurred again, we went to the dealer as electrical problem are a real pain. The dealer replaced the alternator at first... $980 CDN. This fix lasted for about 6 miles!

    After several weeks of getting stranded in random locations and towing the car to the dealer... (All at the dealers cost even though the car was no longer under the manufacturer warranty) they replaced everything behind the dash. Apparently the electronic component were shipped back to Ford because the engineers thought that this was a very weird problem.

    Cost for the repair was split between Ford 60%, Dealer 20% and us 20% => reasonable deal.

    This repair lasted 3 months before the entire dash was replaced under the "repair" warranty for a second time.

    We recently traded the car in when it started acting up again. The dealer did consider our ownership experience and gave us a very good deal on the new car. I hope the 2005 ZX5 does better than the last car.

    Problems happen, its how you fix them that counts! I can't complain about Ford or the local dealer.
  • My focus seems to lose electrical power when I let it idle. I had the battery serviced, as well as my alternator checked. It still continues to do this. Does any one have any ideas why?
  • I've got a real strange problem. I have a 2000 W/Zetec 75K. I bought the car new and have had 9 (including fuel pump)recalls. To the best of my knowledge I am up to date. Ok, here are the problems, reciently I have noticed a number of things that look to me to be electrical problems. I notice a buzzing coming from under the dash on the passanger side. While that buzzing is going on IT SEEMS that if I turn on the headlights or step on the brakes I feel a strong jerk and the Multi-function Transaxle/cooling system light turns on. I don't really notice a power loss after the jerk and the light only stays on for a second. A few seconds later the radio will turn off or the guages will bounce irradically. I thought that maybe it was the fail-safe cooling. But, the service engine light doesn't come on?- nor is the car overheating. I can't seem to make it do this, it picks when and where, therefore have $350.00 into trying to fix it. Ford tech found nothing when it was connected to the I would really appreciate some help.
  • focusjohnfocusjohn Posts: 1
    i am having the exact same problem with a 2002 focus se
    the dealer thinks i'm crazy cause they never seem to get it to do it when they check it out..... if anyone has a fix or heard something please let me know... ty
  • lstavanglstavang Posts: 1
    I have a 2002 ZX5 that started having power or electrical problems this week. The battery light comes on briefly, the gauges go whacky and the lights dim. I don't know any mechanics and don't know where to take it other than Ford.
    I see that as a last resort. Can anyone give me any idea of what the problem may be?
  • explorerx4explorerx4 Central CTPosts: 9,446
    you might need a new battery. it can cause electrical gremlins. maybe a car parts store can check it for you.
    look on their websites to see if they offer battery checks.
  • dionjendionjen Posts: 2
    My 2000 Focus won't start. When I put the key in the ignition and the door is open, the chime starts. When I turn the key to start, nothing happens except that the chime is now a continious sound. No dashboard lights come on and the engine does not even make a whisper of a sound. I have checked the battery and the fuses and they are all OK... even the radio plays. Does anybody know what is happening?
  • I am having trouble, I think, with the electrical system. The initially the battery corroded and i replaced it with a used battery. it then started, but after a few days, would not start, just got clicking. it stalled, then shut off and i had to have the car towed. i then took it to pep boys and had a diagnostic done, i thought it mighht be the alternator (sp?). it wasn't, so i purchased a brand new battery. started driving it, the battery light went on almost immediately, and while i was able to get the car home, the next day when i started, and moved it, the battery light came on again, and it stopped. clicking. i had it towed home. i started the car every day for a week, but did not move it. yesterday i went to start it...clicking. it won't start.

    i may need to take it to the dealership for repair, but wanted to know if anyone hs had this problem and may know what it is. thanks.
  • swbrannoswbranno Posts: 1
    Did you find the fix? I have a 2002 SE seems to have the same problem...
  • peardreampeardream Posts: 1
    I'm not sure if this will help any of you, but I've had a similar problems about 3 times. I own a 2000 Focus ZX3. When this problem comes up, it seems that I have trouble starting it about a week in advance, and then the car just dies. I've found that it's the ignitor coil pack. Every time I've had this problem, if I replace the coil pack, it works like a charm for about a year or so. The part is only about $38 and is so easy to replace yourself. It does seem to drain on the battery so I had to replace it once I bought one with a warranty just in case the problem arose again.
    I was also able to exchange my faulty coil pack once free of charge, because it had been under a year.
    Has anyone else had this problem? I am sure there is a root problem but paying $38 yearly doesn't seem like too high of an expense to me.

    Let me know if any of you have the same problem.
  • My 2000 has the same exact symptoms as that which you won't start. NO fan, no lights, no blinkers, no dashboard lights, and a chime that won't stop, and when the key is turned to start the engine...nothing. Have you had any leads as to what caused this problem
  • Check all the fuses inside the car. If none is blown, check under the hood, there are more fuses.. check if one of them is blown. If it is a fuse, replace it.. otherwise it could be a relay. If it keeps on blowing the fuses, then it might be your starter that shorts out when it gets hot. Hope this helps.
  • We are having a similar problem with our 2000 zx3. You seem to know your stuff and we would appreciate your input
  • We are having a similar problem with our 2000 zx3. You seem to know your stuff and we would appreciate your input. The starter will get stuck and keep turning making a horrible screeching sound. Logically we turn the car off and the starter keeps turning but eventually stops and that's when the car won't start at all and needs a tow. We had it into the mechanic once who said the start shorted out. Now it happened again last night, another tow, who knows what the machanic will tell us today. What might cause this shorting out?????
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