Hyundai A4AF 4-Speed Automatic Transaxle · Hyundai / Kia · Expert rebuild service since 1987. Lifetime warranty. Free diagnostic.
1994–2006 Hyundai Accent/Excel, 1994–2005 Kia Rio/Sephia, 1997–2003 Hyundai Elantra (1.5/1.6L)
| Configuration | 4-speed automatic FWD transaxle |
|---|---|
| Gear Ratios | 1st 2.86:1 · 2nd 1.58:1 · 3rd 1.00:1 · 4th 0.69:1 · Rev 2.31:1 |
| Fluid Type | Hyundai SP-II ATF or SP-III ATF |
| Fluid Capacity | 5.8 qts total, 2.8 qts service refill |
The shift solenoids A and B wear and fail, causing specific gear engagement issues and limp mode. This is the primary A4AF failure mode.
Symptoms: DTC P0753 or P0758, loss of 2nd or 3rd gear, limp mode with 1st and 3rd only
The oil pump wears on high-mileage units, causing line pressure drop and soft shifts across all gears.
Symptoms: Soft or inconsistent shifts, delayed engagement from Park, slip under acceleration
The adjustable band loses tension from wear, causing slip in 2nd gear specifically.
Symptoms: RPM flare on 1-2 upshift, 2nd gear slip under moderate acceleration
A4AF rebuild replaces shift solenoids, oil pump bushings, band set, all clutch packs, and all seals. Hyundai SP-III ATF is used. Valve body is cleaned and inspected.
Hyundai SP-III ATF every 30,000 miles. Do not use generic Dexron — Hyundai SP-series ATF has different friction modifier chemistry required for proper clutch engagement.
Hyundai Accent/Excel, Kia Rio/Sephia, and early Hyundai Elantra with small 4-cylinder engines from 1994–2006.
Hyundai SP-II or SP-III ATF. Do not use generic Dexron.
A full rebuild ranges $1,200–$1,600 at Chicago Transmission.
Shift solenoid A or B failure is the most common cause of 2nd gear loss on the A4AF.
Depends on the vehicle's overall condition. The rebuild cost is low relative to replacement.
Free diagnostic, written estimate, lifetime warranty. Chicago's A4AF rebuild specialists since 1987.
