1998 KIA Sephia Fuel System, Gasoline Problems

Source: NHTSA · Updated Nov 19, 2019 · 51 complaints analyzed

Owners have filed 51 complaints with NHTSA about fuel system, gasoline problems on the 1998 KIA Sephia, 10% of all complaints for this model year. Half of the reports with a mileage happened before 74,250 miles. The words owners use most often: “fuel pump” (25% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Fuel pump: mentioned in 13 of 51 complaints (25%)
  • Gas tank: mentioned in 5 of 51 complaints (10%)

At what mileage do fuel system, gasoline problems happen?

Based on 4 complaints that reported the odometer reading.

Under 10k miles0 · 0%
10k–25k miles0 · 0%
25k–50k miles1 · 25%
50k–75k miles1 · 25%
75k–100k miles1 · 25%
100k–150k miles1 · 25%
150k+ miles0 · 0%

How serious are the reports?

Of 51 complaints, 5 mention a crash, 2 a fire, 1 an injury.

KIA Sephia fuel system, gasoline complaints by model year

Peak: 1998, with 51 complaints
1995: 2199521996: 4199641997: 111997111998: 511998511999: 431999432000: 132000132001: 520015

n = 129 complaints · Source: NHTSA

Model yearFuel System, Gasoline complaintsShare of that yearMedian miles
2001 Sephia55%37,500
2000 Sephia135%42,800
1999 Sephia4310%7,297
1998 Sephia5110%74,250
1997 Sephia115%—
1996 Sephia43%—
1995 Sephia23%—

When owners reported it

Peak: 2000, with 21 complaints
1998: 3199831999: 131999132000: 212000212001: 7200172002: 1200212003: 3200332004: 1200412006: 1200612009: 120091

n = 51 complaints · Source: NHTSA

Related recalls (2)

Fuel system, gasoline:delivery:fuel pumpNov 9, 1999 · NHTSA campaign 99V318000 · 102,944 vehicles

Problem: Vehicle description: passenger vehicles. The electrical circuit for the fuel pump is grounded at junction connector g300. If the pin tension is poor, or the bolt securing the connector to the vehicle floor is not tightened sufficiently, a poor connection is made. As the fuel pump operates, the poor connection can create heat which in turn increases resistance. Eventually the fuel pump will not receive enough current to operate.

Risk: This condition could cause the engine to stall, increasing the risk of a crash.

Fix: This corrective action is being performed in conjunction with recall no. 99v317.

Fuel system, gasoline:delivery:fuel pumpNov 9, 1999 · NHTSA campaign 99V317000 · 102,944 vehicles

Problem: Vehicle description: passenger vehicles. Electrical current to the fuel pump passes through the c304 and c305 connectors. If exposed to moisture, these connectors could corrode. Over time, the fuel pump will not receive enough current to operate.

Risk: This condition could cause the engine to stall, increasing the risk of a crash.

Fix: Dealers will replace the existing connectors and reposition those connectors to an area where the placement is designed to prevent contact with moisture.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

Tl*the contact owns a 1998 kia sephia. The contact noticed that his vehicle would periodically fail to start. On one occasion, the vehicle was towed to a repair shop and the mechanic changed the fuel pump. A few weeks later, the failure recurred. The mechanic changed the fuel pump relay, but the…

Received Mar 12, 2009 · NHTSA complaint 10261658

Flashing overdrive dash light and check engine light continually lit due to faulty pressure sensor at fuel injector. *nm

Received Feb 24, 2006 · NHTSA complaint 10151084

Problems with vehicle's fuel gauge as well as vehicle holding fuel.*la *mr

Received Feb 24, 2004 · NHTSA complaint 10061016
KIA Sephia
Kia Sephia. Representative photo; appearance varies by model year. Photo: Thomas doerfer, CC BY-SA 3.0, via Wikimedia Commons.

Frequently asked questions

Do all 1998 KIA Sephias have fuel system, gasoline problems?

No. NHTSA has 51 owner complaints about fuel system, gasoline for the 1998 KIA Sephia (10% of the 491 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 1998 KIA Sephia fuel system, gasoline?

Yes: 2 safety recalls list fuel system, gasoline. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

At what mileage do fuel system, gasoline problems start?

The median reported mileage is 74,250 miles: half of the reports with a mileage came before that.

What do owners say about fuel system, gasoline problems on the 1998 KIA Sephia?

The most frequent phrase is “fuel pump”, in 13 of 51 complaints, followed by “gas tank” (5).

Other 1998 KIA Sephia problems

See all 1998 KIA Sephia problems or fuel system, gasoline problems across all Sephia years.