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Ford Mustang Electrical Problems

119 messages,  Last post on Jun 30, 2009 at 10:18 AM

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What is this discussion about? Ford Mustang, Ford Mustang SVT Cobra, Coupe, Convertible


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#100 of 119
"Check Charging System" by tinasgt2005
Oct 20, 2008 (8:04 pm)
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I have a 2005 Gt. About a month ago my check engine light came on and my car would crap out. We thought it was a fuel problem but it turned out to be the alternator. We replaced the alternator and everything was great until this past Friday. The battery light came on and we had a message on the dash, "Check charging system" We figured it was the battery since it ran completly down when we changed the alternator. We went down and bought a new battery and it seemed to work but then on Sunday the battery light came back on along with the same message. Thinking that we must have a bad alternator we replaced it and it worked great until Monday morning. Same thing, battery light came on with same message, "Check Charging System" I was able to go to work and back home(approx. 60 miles). I went back out and tried to start it but it was completley dead. HELP!!!! Does anyone have any idea of what it could be? I have not had any luck with Ford service departments either. I have 78,000 miles and nothing is under warranty anymore. I have had the same problem as some other posts, fuel tank, radio,etc. I have learned to live with the gas tank after they repalced it twice. I have found that id I go to certain gas stations I can't get past $20.00 but if I go to Chevron or Shell I have no problem. I have come to the relixation that the gas nozzles might be a contributing factor. If anyone has any suggestions on the electrical problems please let me know
#101 of 119
Re: "Check Charging System" [tinasgt2005] by Mr_Shiftright HOST
Oct 21, 2008 (7:53 am)
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Replying to: tinasgt2005 (Oct 20, 2008 8:04 pm)

Well first thing I'd have the alternator TESTED for actual quantitative output.
 
If you are buying alternators from big chain stores this might be the problem as their failure rate is rather high.
 
But anyway, batteries and alternators can be tested. You don't have to guess on this problem. Also the car should be tested for a large battery drain.
#102 of 119
Battery and windows by redstang05
Jan 05, 2009 (2:48 pm)
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I have a 2005 Mustang (v6), and when I get in it in the morning the car struggles to start. Also as of late the windows wont auto roll up or slightly go down when the door opens like it normally does (doesnt matter if its morning or afternon). Also the windows wont roll up all the way. Sometimes when I start it up the radio resets and you can hear it cycle through the cds (even though there is none in there). When it is warm outside the car seems to start fine but windows still have the issue. I have had a battery put in there by Ford last year, for different reasons.
 
I have checked all the fuses and they are all fine.
#103 of 119
Re: Battery and windows [redstang05] by Mr_Shiftright HOST
Jan 05, 2009 (6:28 pm)
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Replying to: redstang05 (Jan 05, 2009 2:48 pm)

Okay, same advice for you. Have the alternator output checked, the battery load-tested, and a test for "starter draw" (amperage draw when cranking).
#104 of 119
Re: Battery and windows [Mr_Shiftright] by redstang05
Jan 06, 2009 (6:53 pm)
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Replying to: Mr_Shiftright (Jan 05, 2009 6:28 pm)

starter draw and alt. charge is normal. Battery seemed to be drawing power when we cleaned the terminals (sparking). Also the passenger door works fine and the drivers door won't auto roll up and won't auto roll up the 1/2 inch or so it does when you shut the door.
 
Any suggestion?
#105 of 119
Re: 1994 Mustang electrical problem [medewey] by tinasgt2005
Jan 07, 2009 (5:38 am)
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Replying to: medewey (Jul 23, 2006 2:36 pm)

I posted on here about an electrical issue I was having with my 2005 Mustang GT. I had changed the alternator 4 times 2 ourselves and two by a automotive shop. Each alternator was bought from a large chain dealer. We found out,finally, that the alternator we were buying were not compatable with the card. We ended up having to go to Ford and have a Ford alternator put on. It cost of $800 for parts and labor but I was willing to pay anything to figure out why the alternators kept going out. It has been two months and the card runs great. I was told by Ford that it is some type of chip that needs to be compatable with the computer. At this point I didn't care because my card actually is running now.
#106 of 119
Re: Battery and windows [redstang05] by Mr_Shiftright HOST
Jan 07, 2009 (9:15 am)
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Replying to: redstang05 (Jan 06, 2009 6:53 pm)

Well okay, checking for a battery drain should be simple enough. That seems the logical next step.
#107 of 119
Re: Battery and windows [Mr_Shiftright] by redstang05
Jan 07, 2009 (9:56 am)
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Replying to: Mr_Shiftright (Jan 07, 2009 9:15 am)

this morning went out there and the car started right up and has been working fine all day... still no auto up on the window. Maybe a relay or a regulator?
#108 of 119
Re: Battery and windows [redstang05] by Mr_Shiftright HOST
Jan 07, 2009 (10:00 am)
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Replying to: redstang05 (Jan 07, 2009 9:56 am)

Has the car been scanned for codes? Maybe there is a module or relay that's malfunctioning and it might store a code.
#109 of 119
96 mustang gt v8 5 speed by dieseltech
Feb 18, 2009 (10:29 am)
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I got a question about my car i was driving it home one day and i stopped at a light and the car just died. soi get to the side of the road i mess around with battery cables and nothing so i call my friend and have him jump my car and its on and running perfect again. Until i turn my car off then it wont start so i get my battery checked and its bad i replace it and get the alternator checked its good.So im driving and the battery gauge on the cluster is flickering back and my electric locks,interior lights, and speedometer is not working?????????? but my car is running just fine. So my check engine light comes on and i have a scan tool in my car and when i plug it in it wont pick up the cars computer???finally i was going home to visit my parents and i pull over to by a drink when i come back outside my car sounds like its dying like its not getting fuel i had a full tank??????? but when you shut my car off it will start just fine.could it be water in the electrical????ground?? I dont know. any suggestions?

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