Last post on Jan 11, 2013 at 1:02 PM
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Ford Mustang, Ford Mustang SVT Cobra, Coupe, Convertible
#181 of 197 Re: 2006 Mustang GT massive electrical failure [carvmann]
Mar 02, 2012 (5:40 pm)
I have a 2005 Mustang and I used to have a massive water leak above the electric panel on the passenger side. There is a trough that collects water run off from the windshield. There's a drain with a rubber boot that's suppose to regulate the flow of the water drainage. If it fills with leaves and twigs it keeps the water from draining. Then the water fills to a point where they have a vent that leads to the inside of the firewall and water pours into the car like a water fall. It soaks the electric panel and causes shorts. I've been having all kinds of problems with my electrical system. I removed the panel from around the windshield wipers and removed the rubber boots from the drain so that they don't catch leaves and I haven't had the water leak anymore, but the electric problems are getting worse. I fear I will need a new wiring harness. I've been chasing a cylinder misfire for days now and I can't peg the problem. It must be electrical. I'm getting tired of Ford these days.
#182 of 197 Re: Possible elec problem? [mustangheather]
by claires HOST
Mar 02, 2012 (10:18 pm)
mustangheather, this might be a good question for our answers section, where some of our members hang out to answer quick questions:
After you post your question, you can check for responses by clicking the "my answers profile" link near the top of the page.
Automotive News & Views | Coupes & Convertibles
#183 of 197 Lighting issues?
Apr 08, 2012 (1:23 pm)
Alright, I have no idea about cars, Mechanical wise. But i own a 2009, v8 GT Mustang, Its sapose to be the 25th anniversary addition? It has 22'000 kms on it, And i only had it for about 4 months. Before that, it was previously owned, by a man who took care of it, so the dealers told me. I bought it at 11'000 kms. If this Information is needed.
When i drive it around, though does not happen all the time, The head Lights start to Flash like a strobe light, along with the dash board lights. . It happened last night when I reved my rpms to 2700. And the time before that, When i had my music turned on really loud. The car did not completely Stall on me. It just seemed like a really big Power shortage or something.
#185 of 197 Mustang electrical problems /Smart box
Apr 18, 2012 (6:43 pm)
Usually any electrical problems concerning the smart box is due to water coming into the interior of the passenger side compartment. The water in some cases is due to the plugged drain holes from devris located under the windshield cowling. Remove the cowling ( some models you may have to remove the wipers). In addition most likely your interior ventilation filter is either wet or damaged at this point. After cleaning under the cowling replace the filter which is also under the very cowling held by a few tabs. Entire proces takes under 10 minutes so its quite easy to do.
I forgot to mention that the water which was built up under the cowling seeps into your interior filter dripping onto your smart box. You may at this time have to replace the junction box (avrg price about 700 +- dollars. If you dont have a full blown problem as of yet you might pull out the fuses and clean the prongs with a brush or try electrical cleaning fluid of sorts. Be careful which fuse you pull out or else you might end up reprogramming the vehicle. Hope this helps. If you owners dont have this problem ---- yet------ Check under your cowling just for the heck of it thus maybe preventing future electrical problems.
Apr 23, 2012 (9:37 pm)
I have 2001 Mustang. We started having problems after leaving it sit for about 6 months. Car wouldn't start replaced battery. Worked for 2 days. Replaced alternator. Worked for 3 days. Took battery to be tested ... dead exchanged for new battery. worked for 1 day. Took battery, alternator and starter off to be tested. All Good. So what else could be draining the battery?
#187 of 197 Re: Dead Battery [kathie6971]
by Mr_Shiftright HOST
Apr 24, 2012 (7:34 am)
Parasitic Drain perhaps---here's a good tutorial on how to track down such a problem:
Apr 30, 2012 (9:04 pm)
I have a 2005 Mustang. I went to my daughter today and when I backed out of the drive there was a strange noise, like the brakes were sticking. When I put it into drive everything seemed fine. While I was driving home I noticed I was low on gas and decided to stop at the next station which was about 6 block away. After about 3 blocks the low fuel indicator came on and when it did, the radio and lights turned off. After about 30 seconds everything came back on. I pulled into the gas station and turned off the car and filled up the tank. When I got back in the car started just fine but the fuel gage still showed empty. Then when I tried to put the car into gear it wouldn't move. I tried to pull the emergency brake and it was frozen. I noticed the radio wasn't on. I turned the car off and got out. No dome light. No chime even though the key was in the ignition. I pushed the door lock button to unlock the passenger side and it didn't work. I tried the key fob but nothing. I opened the hood thinking it must be electrical and maybe if I disconnected the battery it would be ok. But I realized I don't have any tools in this car. So looking around under the hood I unplug whatever it is in front of the fuse box, plugged it back in and then went back into the car and it started right up, the gages started working, the lights and radio came on and the door lock button and FOB were working. I closed the hood and drove home. The car ran perfectly all the way home (about 10 miles) but now the engine light is on.
This is the first problem I have ever had with this car.
Does anyone know what might have caused this? It has been raining like cats and dogs all day. And what did I unplug and why did it make a difference?
#189 of 197 Re: 2005 Mustang GT Electrical Issues [zubygirl50]
Jul 15, 2012 (11:28 pm)
Don't know if you found out what was causing the trouble, the battery drain. I have an 06 Mustang and my husband said the glove box light was staying on , so he adjusted it so it would go off when the door closed. Try pulling the bulb to test it and see if that works.
#190 of 197 Re: 2006 Mustang GT massive electrical failure [cps432]
Nov 04, 2012 (7:38 pm)
Hey I have a 2006 Mustang that is having the same problem at the moment, the water leaks in and soaks the box and causes problems with the head lights. At first they would never shut off, and no when the defrost is turned on the high beams come on on their own. Have you had any luck fixing this problem?