Trunk Wiring problems of the 2005 Ford Mustang

I purchased my car new March 1, 2005. I have done all of the suggested maintenance through the dealer. In 2011 - water pouring in under dash front passenger floor. I took the car to the dealer and they couldn't find the leak. I started to wet vacuuming the water out. Then the car started to smell like mold. I finally called my nephew who works for Ford in another city. He cleaned out the drain in front of the passenger side and dried out the car. Why didn't the mechanic at landmark know about the drain? around this time the car started to lock and unlock itself while parked in the driveway. Called dealer no help. Called nephew he said wiring issue. The locking and unlocking stopped. Since then the locks try to relock anytime I accelerated from a full stop. I have found my windows rolled down. I never leave my windows down. I am a big stickler when it comes to locking my car up and I don't leave my windows down. It happened again this last week. Next came the trunk. It would unlock while I was driving. Finally removed the fuse to make it stop. The next fail was the instrument cluster. Nothing works right. Sporadically the speedometer works but can stop any time. Luckily the odometer works so I use the trip meter to know when to get gas. Right now my car lies dead in the driveway. The cd changer started shuffling cd's when the car was running or parked. Problem was it had not been turned on. I have on occasion smelled smoke in the car while driving. From researching the internet, evidently there is an issue with the electrical system shorting out due to water getting into the fuse box due to the drain on the passenger side. My car only has 107000 miles on it. Ford knows about this issue and has know. They need to make it right. Oh and to top it off, I took it to a Ford specialist and they said it was the alternator. $370 later my car is still dead.

Defect in under cowl drainage leads to rainwater leaking into passenger compartment. Water drains down wiring harness into the Smart junction box casing electrical shorts that at first caused the right headlamp to shutdown after 15 seconds. Recycling the headlight switch brings the headlight back on for another 15 seconds. This condition renders the vehicle unsafe to operate from sunset to sunrise. Now the drivers side headlamp has begun the same problem. I checked online and it is apparent that this is a significant safety issue for which the vehicle manufacturer has no part available to fix. They initially informed me that the smj would be available to purchase last September. That has now been pushed back to February of 2016. They want over $400 for the part plus additional labor to program and install a component that should have been recalled years ago. This problem is already covered under a TSB and the defect can cause a multitude of malfunctions that could easily result in life threatening situations. I just recently checked and found over 286 reports on file with NHTSA, yet no apparent investigations appear to have been conducted, nor a recall. It is my sincer hope that NHTSA is not waiting for a body count before taking action. . Read more...

Took 2005 Mustang in for servicing and the horn not working. After finding the horn, fuse and box was working ok, they needed to extra work to find out why it would not work from the steering wheel. $200 more for testing, they said the wiring harness box was corroded. For another $200 they need to do a water leak check to find where water was going to the wiring harness. It would cost between $3,000 to $4,000 for new box, wiring harness and labor. Would have to gut out the car, take out dash, seats, doors, trunk. They are not sure if it would be under warranty, depends on what part is making it leak. They could not tell me what part would not be covered under the warranty. I am taking it to another dealership for a 2nd opinion tomorrow. They also said if I did not get this taken care of, the car electrical system would shut down one by one.