Intake manifold crack destroying engine. Cylinder head spark plug blow out. Heater core failure. Convertible top deteriorating. Fuel pump failure all less than 1200000
The worst 1999 Ford Mustang Convertible problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Engine3
- Transmission3
- Lights2
- Brakes1
- Fuel system1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine3
- Transmission3
- Lights2
- Brakes1
- Fuel system1
- Seat belts1
Recalls
No recalls on record for this model year.
Defect investigations
Spark plug ejection from cylinder head
On september 6, 2005, odi received a petition requesting that the agency investigate allegations of engine spark plug ejection in certain model year 1997 through 2004 ford vehicles with triton v-8 and v-10 engines.odi received a total of 474 non-duplicative complaints on the subject vehicles where the complainant, or the dealer repairing the vehicle, reported that a spark plug detached from the cylinder and/or ejected from the engine.as of december 8, 2005, odi is not aware of any allegations where the alleged defect resulted in a loss of vehicle control, a crash, an injury, or a fatality in any of the 10,319,810 subject vehicles.in addition, odi is aware of only two incidents where the vehicle stalled without restart.information contained in the odi consumer complaints and obtained from 72 telephone interviews with complainants showed the following:(1) 99% of the complaints were on my 1997 to 2002 subject vehicles.(2) most the complainants reported hearing a loud pop while driving or upon starting up the vehicle followed by a loud, repetitive clicking or popping sound.(3) many of the complainants reported that the popping sound was accompanied by some loss of vehicle power; however, in 99% of the incidents reported, the vehicle did not stall.in the very few incidents where the vehicle did stall, most vehicles could be restarted.(4) only a small percentage of the complainants cited that they smelled gas or a slight burning smell when the incident occurred.(5) in all but a very few incidents, vehicle damage was limited to the engine.in one incident, the complaint reported that the fuel rail was damaged and replaced after one of the spark plugs ejected from the engine; however, the complainant reported that the damage did not result in any type of fuel leak or fire.in another incident, the only incident where a fire was alleged, the complainant reported that no fluid leak was observed, but that a fire resulted after the spark plug had ejected from the engine and he had restarted the vehicle and driven to another location.none of the complainants reported any damage to the vehicle hood.(6) only two complainants reported that they observed what appeared to be some drops of fuel coming from the cylinder where the spark plug had failed or on the spark plug itself; however, each of these complainants reported that there was no smoke or flames as a result of his incident.as the petitioner noted, and odi?s analysis showed, it is possible for a spark plug to detach from the engine cylinder threads in the subject vehicles.however, odi?s analysis of 474 complaints describing such incidents found only a very few alleged any safety-related consequences.none of these showed any evidence of a serious safety consequence.given the large population and relatively long exposure time of the subject vehicles, the complaint analysis indicates that the risk to motor vehicle safety from the alleged defect is very low.in view of the foregoing, it is unlikely that the federal safety agency would issue an order for the notification and remedy of the alleged defect at the conclusion of the investigation requested in the petition.therefore, in view of the need to allocate and prioritize the federal safety agency?s limited resources to best accomplish the agency?s safety mission, the petition is denied.
DP05005
Technical service bulletins for the 1999 Ford Mustang Convertible 3
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
What 1999 Ford Mustang Convertible owners say
Most recent owner complaints, unedited.
Swe purchased our 1999 ford mustang gt new and a 25k miles yhe rear end differential was making a lot of noise. Ford replaced the entire third member unit and all carrier bearings. At 35k miles the issue reoccued and this time we took the car to a diiferential specialist who said the carrier bearings on one side were completely gone and replaced them. Then at 45k miles the seme issue developed and we took it back to the differential expert. He could not ubderstand the failuer and upon further analysis determined the the differential housing was bent and his view was that ist was manufactured that way or it bent I=on the delivery ride to the dealership. The diff housing was professionally straigtened and now the car has 95k miles on it and no further problem. We wrote ford about this and never receieved a reply.
Spark plug blow out. There was really nothing that LED up to this that I know of. Apparently this is something that happens a lot to ford vehicles (I have a 99 mustang v8). Ford recommended a new head ($2000). An alternative was to retape the head ($800).
I am the owner of a 1999 ford mustang, with a manual transmission, purchased in 2004. Last week, I parked my car on a local street, at a meter and went into church. While in church, the emergency brake on my car failed, and my car rolled backwards, a block and a half through an intersection and was hit by a city bus, before landing against a tree. The police towed my car away. Since then I have paid to get my car from the tow yard, taken it in for auto body repair and have had to have the entire back end replaced from damage caused by this failure. The emergency brake has not been replaced.
Dt*: the contact stated while driving 35mph, the check engine and coolant light illuminated. The contact pulled over and after initial inspection determined coolant had leaked from the intake manifold. The vehicle was driven to the dealership who determined the intake manifold was fractured. The manufacturer was alerted.
Vehicle is 1999 ford mustang, 3.8 liter engine with 5-speed manual transmission. Dealer replaced clutch,throwout bearing and pressure plate at approx. 2000 miles for original owner. Dealer did same work for myself (2nd owner) at approx. 20,000 miles. Car now has 54000 miles and clutch work is again needed. I have owned many fords with manual transmissions and never had a clutch last less than 100,000 miles, so my driving style can't be the problem.
The rear passenger seat belts do not extract. This includes all of the rear seat belts. The rear passengers are unable to use the seat belts.
Complaint received via e-mail headlamp lenses on my 1999 mustang v-6 have become so etched that they fail to properly illuminate for night operation. I have 84,000 miles on the vehicle but have never had a vehicle headlamp lenses that degraded in this way.
The headlamp lenses on my 1999 mustang v-6 have become so etched that they fail to properly illuminate for night operation. I have 84,000 miles on the vehicle, but have never had a vehicle have headlamp lenses that degraded in this way.
Compare the 1999 Ford Mustang Convertible
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Questions about the 1999 Ford Mustang Convertible
Is the 1999 Ford Mustang Convertible reliable?
Owners have filed 9 complaints about the 1999 Ford Mustang Convertible, fewer than a typical Mustang Convertible model year.
What is the most common problem with the 1999 Ford Mustang Convertible?
Engine and cooling, with 3 complaints. Next is transmission (3).
How many recalls does the 1999 Ford Mustang Convertible have?
No recalls on record.
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