tried everything electrical problem on 05 ford focus need help - Page 3 - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 08-07-2010, 12:54 AM   #21
Grumpy
Focus Addict
 
Join Date: Feb 2007
Fan#: 43791
Location: Vancouver, B.C.
What I Drive: 2005 Sonic Blue ZX3

Posts: 868
FF Reputation: 28 Grumpy Great Standing Member
Buy-Sell-Trade Rating: (0)
As the car has been doing this for a period of time but starts OK which suggests the battery has been getting charged sufficiently, so I doubt that it's the alternator. In the main fuse/relay junction box there is a relay called the power hold relay that puts battery power through a hot at all times 20 amp. fuse to the PCM when the Ign. switch is at On or Start. After checking the battery connections as suggested, I'd swap out this relay. It should be common knowledge by now, but I"ll repeat it.......NEVER, EVER disconnect the battery when the Ign. switch is selected ON, including any attempt to see if the alternator is producing current. It's a good way to zap the PCM and/or the alternator. The FSM for any modern car will have this warning.
Grumpy is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 08-07-2010, 08:15 AM   #22
sparky34kv
Focus Enthusiast
 
Join Date: Mar 2009
Fan#: 63383
Location: Pen Argyl, PA, PA
What I Drive: 2004 Blue ZTW Wagon, 2.3 L Duratec

Posts: 141
Points 365, Level 7
Points: 365, Level: 7 Points: 365, Level: 7 Points: 365, Level: 7
Level Up 30% Completed
Level up: 30% Level up: 30% Level up: 30%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 sparky34kv Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Grumpy View Post
As the car has been doing this for a period of time but starts OK which suggests the battery has been getting charged sufficiently, so I doubt that it's the alternator. In the main fuse/relay junction box there is a relay called the power hold relay that puts battery power through a hot at all times 20 amp. fuse to the PCM when the Ign. switch is at On or Start. After checking the battery connections as suggested, I'd swap out this relay. It should be common knowledge by now, but I"ll repeat it.......NEVER, EVER disconnect the battery when the Ign. switch is selected ON, including any attempt to see if the alternator is producing current. It's a good way to zap the PCM and/or the alternator. The FSM for any modern car will have this warning.
Thanks for the info, now I know. I don't see why it would affect anything since it is electrically the same with or without the battery, but if the factory service manual warns against it I won't suggest it to anyone again.
sparky34kv is offline  
    Reply With Quote Quick reply to this message
Old 08-07-2010, 10:42 AM   #23
sailor
Crankshaft
 
sailor's Avatar
 
Join Date: Jun 2008
Fan#: 57268
Location: Williamsville, NY
What I Drive: 2004 Pitch Black ZTS 2.3 5spd.

Posts: 16,651
Points 11,878, Level 71
Points: 11,878, Level: 71 Points: 11,878, Level: 71 Points: 11,878, Level: 71
Level Up 57% Completed
Level up: 57% Level up: 57% Level up: 57%
Forum Activity 99%
Activity: 99% Activity: 99% Activity: 99%
FF Reputation: 79 sailor Excellent Standing Member
Buy-Sell-Trade Rating: (0)
Batteries & alternators

Quote:
Originally Posted by sparky34kv View Post
Sailor, no disrespect but you are wrong on this one. The alternator can charge a normal battery, but they are not made to charge a discharged battery. A car should, and will run off just the alternator, that is how cars are designed. The batteries sole purpose is to turn the starter on start up, after that the car runs off the alternator, with some draw going to bring the battery up to full charge. A car will draw from the battery sometimes when sitting in traffic or idle with the ac running. I could be wrong, if you can name an instance when it has killed a good alternator, I'd like to know. All I know is it is a simple and reliable way to see if the alternator is working.
Sparks, no "dissin' " here either, just some extra info..

Your description of where power comes from and when is perfect, but there are some special case reasons why "logical" test corollaries aren't a good idea, and the "dead" battery instance also depends on the details...

As to "dead" batteries, correct as to charging a totally "dead" battery - when there's no power at all from the battery the alternator won't produce any output so no charging. Engine prob. won't run either for lack of electricity, but in a few cases it may run, using all the power avail. so there's still no charging output - bunch of odd special case possibilities here, general rule to make testing valid is to use a known good battery when checking the charging system on any vehicle to get valid results & avoid the odd cases that may give confusing results. So, severely discharged batt. needs some outside source charging before the car's system can do the rest of the job. Low batteries (often called "dead") that need a jump to start the car will recover from normal alternator charging, but a short drive isn't adequate...

Pulling the batt. terminal to check for adequate charging dates back to the days of generators & cars with no electronics - a more "robust" system with regard to voltage spikes...

While doing this doesn't always cause damage, the potential is there & risking severe damage to alternators & electrical components from voltage spike when disconnecting the battery just isn't worth it.

My best "proof" can be found if you look up battery switches, either racing safety disconnects, or marine versions for multiple batteries. Cheaper versions have no alternator protection circuit, and carry warnings about possible damage if battery is disconnected while engine is running.

sailor is offline  
    Reply With Quote Quick reply to this message
Old 08-08-2010, 12:35 AM   #24
Try_Duk
Focus Rookie
 
Join Date: Aug 2010
Fan#: 77421
Location: Focus, PA
What I Drive: 2000 Blue SE SW

Posts: 8
FF Reputation: 1 Try_Duk Good Standing Member
Buy-Sell-Trade Rating: (0)
Wow they would not have gotten one dime if I left with same issues unsolved.They would have removed what they installed , that just sounds more like part swapping then diagnosing.Hear a lot of this now days.Sorry but part swapping gets very costly, just sounded like you are paying to train mechanics.I just would not have paid nothing for parts unless vehicle was repaired.Now I would not pay the bill either if a shop that replaced my ignition module ,plugs , wires, cap, rotor and coil to solve a misfire.This just tells me they just part swapped until they found the problem.Problem is, more and more shops do this instead of finding the problems through proper diagnosing.Demand either they find/fix the problem or remove and refund for all the non corrective parts they installed along with the part swapping training you provided to their mechanics at your labor rate.

I would be looking at Voltage Supply/Defective cable/wire or poor cable/wire connections.Mainly the ones supplying the fuse panels.Would also be looking at grounds and their connections.Would include ECU along with wiring and connection connectors.Best to stay with one place that is trustworthy for repairs and not just replacing parts and charging without resolving the problem , as taking your vehicle to multi shops/people you keep repaying to have the same things checked/retested.Don't pay for parts if you leave with original problem.Ask questions why and what each part your charged for is and why it was replaced.Usually electrical switches and sensors don't all go bad at once or very very rare.If they tell you they are stumped but here is a bill for 5 parts plus install and Diagnosing labor charges, only pay for diagnosing labor time, remember your car hasn't been fixed so why did they put new parts on it but its still broke and doing same thing, They can swap the parts back out or eat the part costs!
Try_Duk is offline  
    Reply With Quote Quick reply to this message
Old 01-17-2012, 02:23 PM   #25
2005fordfocuszx4
Focus Rookie
 
Join Date: Jan 2012
Fan#: 93946
Location: Atlanta, GA
What I Drive: 2005 black ford zx4

Posts: 1
FF Reputation: 1 2005fordfocuszx4 Good Standing Member
Buy-Sell-Trade Rating: (0)
Speedometer and mileage not working - check engine light battery light seatbelt light oil light and coolant light stay on on my dashboard. I recently got my fuel injection switch replaced in my 2005 ford focus zx4. The next day when I turned my car on my speedometer and mileage was not working and all lights on the dashboard stay lit. What can be the problem?
2005fordfocuszx4 is offline  
    Reply With Quote Quick reply to this message
Old 01-03-2013, 06:48 PM   #26
kubiak213
Focus Rookie
 
Join Date: Jan 2013
Fan#: 108018
Location: clermont, FL
What I Drive: 2005 gold zx4

Posts: 1
FF Reputation: 1 kubiak213 Good Standing Member
Buy-Sell-Trade Rating: (0)
any luck getting it fixed since then?
kubiak213 is offline  
    Reply With Quote Quick reply to this message
Old 01-03-2013, 06:59 PM   #27
mikeeshaq
Focus Addict
 
Join Date: Jan 2010
Fan#: 72526
Location: Sugar Land,TX ex MN, TX
What I Drive: 2010 Transit Connect

Posts: 1,046
Points 626, Level 12
Points: 626, Level: 12 Points: 626, Level: 12 Points: 626, Level: 12
Level Up 52% Completed
Level up: 52% Level up: 52% Level up: 52%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 15 mikeeshaq Great Standing Member
Buy-Sell-Trade Rating: (0)
If one of the diodes went out in the alternator, then very possibly AC is being applied to the battery and alot of strange symptoms would appear

Get a multimeter, set to AC Volts, see any? then you have a problem
mikeeshaq is offline  
    Reply With Quote Quick reply to this message
Old 01-03-2013, 07:32 PM   #28
whynotthinkwhynot
Captain TMI
 
whynotthinkwhynot's Avatar
 
Join Date: Jan 2005
Fan#: 18416
Location: the armpit of TN, Memphis, TN
What I Drive: 05 Focus Wagon; 13 C-Max SEL

Posts: 20,272
Points 27,546, Level 98
Points: 27,546, Level: 98 Points: 27,546, Level: 98 Points: 27,546, Level: 98
Level Up 20% Completed
Level up: 20% Level up: 20% Level up: 20%
Forum Activity 13%
Activity: 13% Activity: 13% Activity: 13%
FF Reputation: 270 whynotthinkwhynot Outstanding Standing Member whynotthinkwhynot Outstanding Standing Member whynotthinkwhynot Outstanding Standing Member
Buy-Sell-Trade Rating: (1)
Quote:
Originally Posted by 2005fordfocuszx4 View Post
Speedometer and mileage not working - check engine light battery light seatbelt light oil light and coolant light stay on on my dashboard. I recently got my fuel injection switch replaced in my 2005 ford focus zx4. The next day when I turned my car on my speedometer and mileage was not working and all lights on the dashboard stay lit. What can be the problem?
Well, the first problem is that you've posted in a thread that was started 4 years ago. Give us a good description of what your problem is in a new thread using the yellow "New Thread" button on the previous page where the threads are listed. This will give you a wide variety of responses from our regular members, and hopefully we can solve your problem.

I'm personally interested in what you mean by "fuel injection switch"- is that a relay? There are no switches in the EFI circuit. I'd be taking it back to that mechanic and asking him why this problem wasn't there before he worked on the car.

Here is a link to the main page of General Technical Chat so you can start your own thread.
__________________
Be eclectic.
---The Complete How-To Archive--

Moderating everything now, let me know if I can help.

Quote:
Originally Posted by the user formerly known as ZX3_Chick View Post
You're special aren't you.
whynotthinkwhynot is offline  
    Reply With Quote Quick reply to this message
Old 08-27-2014, 01:01 PM   #29
Jutro
Focus Rookie
 
Join Date: Aug 2014
Fan#: 185937
Location: Santee, CA
What I Drive: 2005 grey ZX4

Posts: 2
Points 5, Level 1
Points: 5, Level: 1 Points: 5, Level: 1 Points: 5, Level: 1
Level Up 9% Completed
Level up: 9% Level up: 9% Level up: 9%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 Jutro Good Standing Member
Buy-Sell-Trade Rating: (0)
Same exact thing has been happening to my 2005 ford focus zx4. Wasn't the battery, nothing in the fuse box, so now I'm replacing the alternator. By the way who else agrees that the location of the alternator is a pain in the butt?!
Jutro is offline  
    Reply With Quote Quick reply to this message
Old 09-02-2014, 09:26 PM   #30
Jutro
Focus Rookie
 
Join Date: Aug 2014
Fan#: 185937
Location: Santee, CA
What I Drive: 2005 grey ZX4

Posts: 2
Points 5, Level 1
Points: 5, Level: 1 Points: 5, Level: 1 Points: 5, Level: 1
Level Up 9% Completed
Level up: 9% Level up: 9% Level up: 9%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 Jutro Good Standing Member
Buy-Sell-Trade Rating: (0)
Here is a video of the clicking:

https://www.youtube.com/watch?v=yhrs...6BL4rgORh_DxvA

And the relay clicking when I turn off the car:

https://www.youtube.com/watch?v=5TGo...6BL4rgORh_DxvA
Jutro is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
The Ford Focus Parts List! gthang MK2 Focus 13 01-27-2009 12:05 AM
Focus Light Bulb Guide (MOD STICKY THIS) TKE_Quailman MK2 Focus 13 11-09-2008 05:36 PM
Aussie Fords Coming? igor Ford Focus & General Car Chat 27 06-06-2006 12:32 PM
Interesting Read on Ford Platforms on Wikipedia igor Ford Focus & General Car Chat 2 02-28-2006 03:45 AM


All times are GMT -5. The time now is 05:15 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat