2005 Ford Mustang: wrong fuel gauge reading

Filed Dec 23, 2018 · Electrical, Lights · 157,000 miles · CT

There is an apparent design flaw in 2005 mustangs as I have read hundreds of similar complaints as to what I am experiencing. Due to this design flaw after a recent day of heavy rain 1 headlight and 1 signal light will not turn off once the car has been shut off. I researched and apparently the smart junction box (sjb) got wet and the electrical unit is now malfunctioning. There was also a strong burning smell when I got home that night as well. Spoke with an online mechanic technician and he confirmed that the sjb needs to be replaced. There has been a long history of the car leaking on the passenger side whenever it rains due to the design flaw. Also my gas gauge never reads properly, inside lights are also dim/off and the check engine light has been going on and off for nearly a year and my mechanic could not diagnose why the reviews online said when they spoke to ford that admitted that it was a known problem but because there has been no recall that they will not repair this for free. Estimates I read put the cost around $1000 to get this fixed and do not want to pay that kind of money especially when ford admits to knowing there is a problem. I am hopeful that we can get ford to do the right thing and issue a recall for this. It is a serious problem since the electrical system can cause a fire from reports I have read. This happened to meet on 12/21/18. I was driving home from work and parked the car and shut it off. As I locked the car I noticed that the drivers side headlight and passenger side signal light stayed on and I had to disconnect the battery to make them shut off. Also there was a strong burning odor when I lifted the hood.

Filed Apr 11, 2018 · Electrical · 45,000 miles · SC

Gauges stopped working. Tachometer, speedometer, gas gauge, temperature gauge.ford dealer told me over $600.00 to replace/repair. I've talked to several other mustang owners and they have the same problem.

Filed Sep 18, 2017 · 90,000 miles · IN

Cluster with odometer gauge, hot/cold gauge, sometimes gas gauge are all showing wrong information. The speed odometer will be showing 80 miles or more when you are only driving 45. This is very common problem on mustang 2005 as I have read on many forums. I have had this problem from last year but I had no way of knowing where to complain because this is safety issue, I have no idea how fast I am going or when I will be out of gas. I hope more people know where to report these issues so the ford company can recall or make better lasting products.

Filed May 15, 2017 · Electrical, Fuel system · 24,000 miles · NE

I purchased my 2005 ford mustang v6 automatic transmission in july of 2016. At the time of purchase everything seemed to be working fine but about a month later I noticed the fuel gauge was sitting at e so I attempted to fill it thinking I had an empty tank which meant I should have been able to put 14-16 gallons in and as I was refueling I noticed it kept shutting off even though I had just started the pump eventually I got it filled and only put in about 6 gallons which I thought was odd but I went with it and got back in my car started it up and noticed that the gauge was still sitting at e at that point I knew something was wrong but I figured it could wait since I knew how far I could potentially go on a full tank but then after I left and headed for home I noticed that my speedometer said I was going 60 but everyone was blowing past me at least 10mph faster when the speed limit was 60. So I pulled over and noticed that at a stop the speedometer came to rest at 35mph I was able to fix it but it kept happening I was lucky enough that I didnt get pulled over because I had no idea how fast I was going. Then for a while that stopped happening but every now and then and at an increasing rate the engine keeps stalling like its not getting enough fuel when I stop at an intersection or stop sign even though I had just filled the fuel tank the day before and hadn't driven more than 50 miles. The mileage at the time of the incidents beginnings was ~24,000 miles the current mileage is 34,000 as of 5/15/17.

Filed Dec 9, 2016 · Electrical · 28,108 miles · NE

Ever since I got my mustang the fuel gauge was acting up and would sometimes give me a correct reading but most of the time it just sits at empty even after refueling. Then just recently I started driving into work when I noticed that my speedometer said I was doing about 100 MPH on city streets and confirmed it was inaccurate when I came to a stoplight and came to a complete stop but the speedometer read 50 MPH. When I got to work I stopped the engine and started it back up and I had to repeat this process 7-8 times to get it to reset back to 0 MPH this was the first time that occurred since I got it.

Filed Sep 16, 2016 · Electrical · 60,000 miles · FL

Instrument cluster (panel) - speedometer, tachometer, fuel gauge all not working. Can't tell how fast I am going or how much gas I have ect all 6 gauges do not register at all.

Filed Jan 6, 2016 · Electrical · 84,000 miles · PA

Tl* the contact owns a 2005 ford mustang. When the vehicle was started, the speedometer, tachometer, fuel gauge, and temperature gauge failed. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 84,000. Updated 03/09/16

Filed Oct 5, 2015 · Fuel system · 33,500 miles · CA

Tl* the contact owns a 2005 ford mustang. While attempting to refuel the vehicle, fuel spewed out during every gallon. The contact mentioned that the fuel gauge worked only if the vehicle was on an incline. The vehicle was taken to the dealer where it was diagnosed that the fuel gauge needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 33,500.

Filed Aug 20, 2015 · Electrical · 41,000 miles · NY

Fuel gauge reading past empty, will not show any change in fuel level. Other gauges showing same signs of failing. Internet has many companies that will fix the gauge cluster, so it must be a common problem with mustangs. Also the LED daytime lighting on the dashboard gauges is very low not able to read the speedometer or other gauges.

Filed Feb 5, 2015 · Electrical · 22,652 miles · AZ

2005 roush mustang gt sport. Manual transmission. Only 24,000 miles. Collector condition. Instrument cluster issue. Tachometer stopped working. Fuel gauge intermittent. Temperature gauge intermittent. Speedometer still working.

Filed Feb 3, 2015 · Electrical · 101,000 miles · TN

First the speedometer stopped working or would hang up, then the fuel gauge stopped working and now all the gauges have stopped working.

Filed Dec 11, 2014 · Electrical · 40,000 miles · OR

. I got in my car an started the engine. I then noticed my fuel gauge and speedometer were not working at all. I have always taken care of my mustang an I think ford should recall the cluster. There's been plenty of 2005 models with very same issue. Please recall the gauge cluster it's the right thing to do for a big name company like ford. Original owner.