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Ford Focus Electrical and Lighting Problems

486 messages,  Last post on Dec 19, 2012 at 7:45 AM

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What is this discussion about? Ford Focus SVT, Ford Focus, Lights, Electrical, Coupe, Hatchback, Sedan, Wagon

Messages Page 39 of 49

#381 of 486 Re: 2000 ford focus engine hesitation/radio shuts off [arguy] by careed33

Jan 13, 2011 (7:17 pm)

Replying to: arguy (Jan 13, 2011 5:17 pm)
Yes. I Did. After replacing the already bad alternator, having the battery checked for any dead cells, and checking the ignition switch, it turned out to be a fried computer. I ended up buying a new one from Oreilly. Cost me about 185 plus the cost to get it programmed. The thing that confused me was everyone saying it was the vehicle speed sensor. That didn't make any sense because the car was standing still. None the less, it turned out to be a fried computer. Pull the existing one out of your focus and have it checked. You can get a brand new one from Oreilly or look on ebay. I suggest matching the computer part # to one they have on there. You can get it alot cheaper but it is used. Attached you will find a link that will tell you how to get the glove box open to get to the computer behind it. If you have any questions let me know. My car is running perfectly now with no problems at all. http://www.ehow.com/how_7539318_remove-ecu-ford-focus.html

#382 of 486 Predicting or detecting electrical problems in 2007 Ford Focus? by 99_escort_se

Feb 17, 2011 (4:24 pm)

#383 of 486 Predicting or detecting electrical problems in 2007 Ford Focus? by 99_escort_se

Feb 17, 2011 (4:24 pm)

I have a 1999 Ford Focus and LOVE it - bought it used. Great gas mileage, no problems, etc. Am thinking it's time to replace it and was looking at the 2007 Ford Focus -(four door sedan) a used one, but see that some of them have LOTS of problems with the alternator or other electrical problems. Is there anyway to determine or "test" a used car to see if it has/will have electrical problems? THANKS!

#384 of 486 Re: 2000 ford focus engine hesitation/radio shuts off [careed33] by corbryant

Mar 12, 2011 (3:20 pm)

Replying to: careed33 (Jan 13, 2011 7:17 pm)
My roomates 2001 Focus (2.0) has been giving us trouble, and I've basically taken the same steps as you. I replaced a very expsensive alternator, and it's still acting up. Sitting at a redlight, the headlights and dash lights go on and off, the gauges bounce back and forth and it runs rough. It does the same thing if I'm driving, but then it seems to slip out of gear and and the engine winds up. The gauges sometimes continue to work and you can see it wind up to about 4000RPM then it catches and slams back into gear if you don't let off of the gas pedal. It's hard to diagnose since it's intermittent, but I think replacing the computer is a good idea after reading your post.
 
Everyone agree with that?

#385 of 486 Re: Predicting or detecting electrical problems in 2007 Ford Focus? [99_escort_se] by corbryant

Mar 12, 2011 (3:37 pm)

Replying to: 99_escort_se (Feb 17, 2011 4:24 pm)
Drive it around...ALOT...even if you have to stop and put gas in it. Take it on the highway, up hills, etc.. Let it sit with the hood closed, running while you talk to the people afer you get back so it builds up a lot of heat under the hood - that will kind of help identify any "heat soaking" issues with elecrical components that only fail when they get really hot.
 
People get pissed off at me sometimes when I buy a car and test drive it. I try to drive for 30-45 minutes at least. It gives the car plenty of time to warm up and [hopefully] let any intermittent problems the car might be having. I know the older Focuses have quite a few issues from what I've gathered by reading in the forums - maybe electrical issues...but I would LIKE to think that Ford only improved on that and any later model would be much more dependable.
 
In the end, elecrical issues suck and are sometimes impossible to track down - especially if they are intermittent and only happen occasionally...those are the worst because it has to be failing before you can really diagnose it in most cases. I'm in no way an ace mechanic, but you'd be surprised at how many times I've saved myself from being ripped off by just driving the car a few extra miles and spending a little more time with it.
 
I had one guy leave only a tiny bit of gas in the car I was thinking about buying and said "just go around the block..." I told him I'd put gas in it, that I'd prefer he go with me and drive around for a few minutes - he refused and said another buyer was coming and he didn't want to miss him. The best part is that about 2 weeks later, I saw the car on the side of the road and a teenager was standing next to it. I stopped to see if he needed help and he explained that he bought the car and (LOL) immediately put gas in it and drove home. Poor kid said he didn't get 2 miles and it started overheating. It turned out to have a blown head gasket, and the jackass he bought it from had just changed the oil and water to hide it and let it limp by through the test drives. As long as it didn't get up to operating temp the head gasket was all but undetectable. I suggested he go drive it through the sellers front door. "Around the block", indeed. =)
 
Cor

#386 of 486 Re: 2000 ford focus engine hesitation/radio shuts off [corbryant] by oldfordmech

Mar 13, 2011 (5:37 pm)

Replying to: corbryant (Mar 12, 2011 3:20 pm)
? why did you replace alt. assy. What is your battery voltage with eng shut off ? now start and run eng at 1000 rpm and check voltage at battery,
it should rise up to 14.2 to 14.6 but not much higher.
 
If voltage is not within spec. check ALL battery cables from battery to starter and battery to ground ( BOTH ENDS ) must be tight CLEAN & TIGHT
 
Let me know

#387 of 486 Re: 2001 Ford Focus - Gauges Erratic, Shift Issues, Flikering Lights by corbryant

Mar 14, 2011 (7:46 pm)

Replying to: oldfordmech (Mar 13, 2011 5:37 pm)
It's not a voltage issue. The alternator was replaced becuase it was not charging (11.5v). The alternator that is on it now is working fine. I've already checked the voltage, which was over 14v under full load with the A/C on high and the high beams lit. I replaced the terminal ends today becuase I did find a .5 volt drop from the terminal end to mid way down the starter cable.. The headlights/dash lights still flicker badly and the gauges still sweep back and forth occasionally along with the shifting issue where it seems to fall out of gear when the lights flicker and all of that. I'm just going to replace the computer and pray that does the trick. I can't think of anything else that would cause this variety of issues - and I did find one instance where someones dash gauges were sweeping back and forth and replacing the ECU fixed it.
 
Cor

#388 of 486 Re: Ford Focus....lemon...??? [matsukes] by corbryant

Mar 14, 2011 (9:31 pm)

Replying to: matsukes (Oct 24, 2008 2:32 pm)
The car catching on fire was a blessing. I wish ours would catch fire.. =)

#389 of 486 gauges by oldfordmech

Mar 15, 2011 (10:58 am)

I've seen the insturment cluster cause a bunch of goofy problems and need replacement.
 
Also, I think you have an acc. modual (mounted under dash, about mid way) that controls all
acc. radio, gauges, door locks,wipers, heater, but I'm not sure about the the headlights. that
may be a diff.problem. I would not be in a hurry to replace the main computer.
Keep me posted,
 
Cliff

#390 of 486 Re: gauges [oldfordmech] by corbryant

Mar 15, 2011 (12:56 pm)

Replying to: oldfordmech (Mar 15, 2011 10:58 am)
Okay, so you're not the first one to say that, apparently. My roomate already has a new gauge cluster sititng in the garage. I think she had read that someplace else and ordered it but never had it put in because the shop she used in the past told her that wasn't it. I'll throw that thing in tonight or tomorrow and let you know. Thanks!
 
Cor

Messages Page 39 of 49

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