2005 Ford Mustang GT: water leaks into the cabin

Filed May 5, 2014 · Electrical · 94,000 miles · ME

Since the car has had around 45000 miles on it I began having intermittent electrical issues. Speedometer, wipers, instrument cluster, brake lights, head lights, and blinkers all stop working while driving. I am forced to shut the ignition off while driving and recycle the key just to get the blinker work and then shut it off again to turn it off! Doors will no longer lock or unlock and cannot pop the trunk using fob. The electrical panel on the floor of the passenger side is clicking and I have read hundreds of complaints on the internet about this water leakage issue. How many people need to die before someone holds this manufacturer responsible? This has been a known issue for over 8 years and nothing has been done. Does someone need to be killed when my brake lights fail to illuminate before you take action?

Filed Dec 29, 2011 · Electrical, Engine · 75,000 miles · TN

Design of the cabin air intake box and drain LED to a back flow of water during a heavy downpour. This LED to water flowing through the air ducts and into the passenger compartment behind the glove box. Ford placed 4"x6" piece of foam over the smart junction box in an effort to "bandage the problem, rather than correcting the cause. As water entered the cabin area, it soaked the smart junction box to fail which may have been the proximate cause for the engine dying. End result is that the smart junction box must be replaced and programmed.

Filed Jun 24, 2011 · Electrical · 47,000 miles · CA

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.

Filed Mar 1, 2011 · Body, Visibility · 65,000 miles · MO

Tl* the contact owns a 2005 ford mustang gt. The contact stated that the windshield wipers would sporadically fail when operating during rainy weather. In addition, water was leaking into the vehicle and onto the floorboard and control module. The dealer was contacted and advised him that the manufacturer had provided a technical service bulletin for the failure associated with the water leak but not a recall (the federal safety agency item number: 10028507- structure:body:roof and pillars). The vehicle was not inspected or repaired for the failure. The failure mileage was approximately 65,000. The VIN was available.

Filed Mar 3, 2010 · Body · 31,000 miles · VA

1. Beginning at approximately april, 2008, my 2005 ford mustang gt began to leak water inside the cabin in the passenger footwell whenever it rained hard or snowed. 2. The failure is a grommet that clogs up underneath the cabin air filter. It's very difficult to reach unless you're a certified mechanic. 3. The ford dealer has cleared out the area around the grommet, but it is a constantly recurring problem that ford has issued a tsb for, but they haven't issued a recall for since it usually happens after the warranty expires. I don't think it's fair to make customers pay for a problem like this that ford has known about since 2005.

Filed Aug 29, 2009 · Body, Brakes · 85,000 miles · FL

1. Water leak in passenger side kick panel, has shorted smart junction box, now traction control does not work (caused the rear wheels to spin out on wet pavement at 35 MPH and lost control of the vehicle, hit a curb and bent 3 rims and under carriage damage) and has caused other safety related problems while driving. With A/C on, car idle will drop and sometimes stall out, causing a loss of steering and brakes (very safety related). Ford knew of water leak issue when vehicle was manufactured, they put a little plastic cover over sjb computer to deflect leaking water inside passenger compartment on passenger side behind kick panel near door hinge. No dealer will repair the issue without buying a new sjb and programming for over $600. 2. Also rear brakes stick after using emergency brake. This is in a warm climate, not cold climate. If I ever have to use my e-brake in an emergency the rear wheels will lock up and be even more of a hazard and danger. Both these issues are very safety related. I tried searching your data base and could not even select mustang in the vehicle list. Searching the internet you will find literally hundreds if not thousands of complaints about this water leak and sjb damage issue. Please do something about this. I am currently thinking of suing ford for the water leak and wreck this caused. I came very close to hitting a pedestrian when the traction control failed in this accident.

Filed May 1, 2009 · Electrical, Lights · 42,000 miles · GA

Tl*the contact owns a 2005 ford mustang gt. While driving between 35-45 MPH in light rain, the entire instrument panel and exterior lighting failed without warning. In addition, the front driver's and passenger side floor areas accumulated an excessive amount of water leakage. Water entered into the fuse panel. The contact pulled the vehicle over to the side of the road, where it was towed to an authorized dealer for diagnostic testing. The technician stated that the failure was contributed to a cracked body torque seam. The vehicle was repaired at the cost of $900; however, the repair was not covered under warranty. The repairs consisted of replacing the smart fuse box, seals, and micro circuits. The failure mileage was 42,000 and current mileage was 45,092.

Filed Nov 9, 2008 · Electrical, Lights · 61,080 miles · AL

I recently purchased a 2005 model mustang gt from jim skinner honda in dothan alabama. The vehicle has a significant water leak into the passenger floorboard and into the smart junction box area. The water penetrates into the wiring harnesses and box itself. Being that most operations on this vehicle are electronically controlled it is my opinion (mechanic) that water intrusion into this area could cause an engine failure and has caused lighting malfunctions on the taillights of the vehicle. When raining the vehicle typically experiences electrical ghosts of various sorts. Also the vehicle would not start during some heavy water intrusion instants. But given time this problem can and will lead to a fire or a electrical malfunction causing a crash and/or death.

Filed Oct 11, 2006 · Locks · 9,300 miles · WV

Dt*: the contact stated water had leaked onto the vehicle's carpet causing a moldy smell. This happened more frequently on a rainy day and when the vehicle was parked. The contact expressed that water had leaked through the front right passenger door, and the door latches could be the cause. The vehicle was taken to the dealership to diagnosis the problem. But they did not find anything that could generate a water leak.