Other Fuel System Problems of Hyundai Equus

Hyundai Equus owners have reported 4 other fuel system related problems since 1996. Table 1 shows the 1 most common other fuel system problems. The number one most common problem is related to the vehicle's other fuel system (4 problems). For details of each of the problem category, use the links in the table.

Table 1. Other Fuel System related problems of Hyundai Equus

Problem Category Number of Problems
Other Fuel System problems
4

Other Fuel System problem #1

The problem is with the accelerator pedal. It malfunctions, and is also known as a 'dead pedal' at different times without warning and could cause an accident if it happens at the wrong time, like making a turn and the car will not accelerate, or move, just getting the car to move . I checked with a dealer if they have had any of these type reports and there answer was no they had not. It is very un-nerving when it happens.

Other Fuel System problem #2

I am unable. To drive my car anywhere. Each time I start my car. All warning lights flash like a christmas light. It causes the car to suddenly be slowed down. Or not to go full speed? I got the recall notice in the mail 4 weeks ago. My car has been parked in the garage for four months and has been there ever since. I need my car to go to work and I don't know what else to do. I can only do so much by using the cars of families and friends, but I need my car back because it's inconveniencing them too as well.

Other Fuel System problem #3

May 4th 2019 vehicle found dead and would not start. No signs of any battery issues in the past few days. The vehicle was towed directly to the service department at empire Hyundai located in fall river, MA. Vehicle confirmed by service department to turn over, however no lights or clock and no power. Then all went dead for the service department. Service manager informed that he was not able to provide the root cause for the ongoing electrical issue, and the specific cause of this incident. The solution that was provided was to install a new replacement battery. When the battery was installed, the �issue� seemed to go away. This is a re-occurring issue related to the electrical harness, and that it is unlikely that replacing battery is the solution to the problem. Empire's service department has documented the ongoing electrical issues as the car has been brought in numerous times usually �shutting off �at highway speeds with the wheels locking up. (5 times). We were told it was a ground issue and a �new ground bolt was installed, however the vehicle continued to �shut off at highway speeds �and the vehicle is very hard to control as loss of power steering and braking occurs. When this happens and is dangerous and cause an accident with other cars or objects due to loss of control. This is clearly related to the wiring harness\ground bolt and the failure mode is similar to previous incidents when the vehicle failed during operation . Communicated we did not feel safe continuing to operate this vehicle with this issue unresolved. Case # 15744270 w/ Hyundai complaint dept. Attn: there are previous complaints in nhtsb database from other Equus users that have experienced the loss of power while vehicle is under operation. The risk with this failure mode is serious injury or death and should be assigned your highest severity risk rating.

Other Fuel System problem #4

Car unresponsive to inputs from the accelerator pedal. Multiple dashboard warning lights - vsm off, dsc, epb, psb, airbag, and check engine lights; vehicle still running. The first instance occurred on a freeway feeder road while going 45mph; car was unresponsive to any inputs from the accelerator for approximately 10 seconds, simply acting as if there were no throttle inputs. Turning to head home immediately, the vehicle responded similarly while traveling 25 mph on a residential street; it began coasting and any throttle application resulted in no acceleration. Car limped home and parked for dealership tow truck.



Safety Ratings of Equus Cars
Fuel Economy of Equus Vehicles
Equus Service Bulletins