Full 8-solenoid set for the Hyundai and Kia A6MF1 six-speed transaxle, six linear pressure controls plus two on/off shift solenoids for P0748 and flare shifts.
A Hyundai Sonata, Santa Fe or Tucson, or a Kia Optima, Sorento or Sportage, that has started flaring between gears, banging on a kickdown or setting pressure control solenoid codes is a classic A6MF1 or A6LF solenoid case. This kit is the full set of eight valve body solenoids for that six-speed family, sold remanufactured and tested, so every solenoid is replaced in one service instead of one code at a time.
The A6MF1 has no hydraulic shift timing of its own; the computer does it all through the valve body. TransGo's technical write-up on this family describes two on/off solenoids and six PWM (linear) solenoids, which matches this kit: six variable force pressure control solenoids and two on/off shift solenoids. The PWM solenoids control the apply pressure of each clutch and the converter clutch, so they decide whether a shift is crisp, harsh or soft.
The solenoids are fed by two reducing valves. TransGo explains that reducing valve number one feeds the two on/off solenoids and the pressure switch valves, and number two feeds the six PWM solenoids. Those valves wear their bores, and when solenoid feed pressure drifts the solenoid output drifts with it. That is why a new solenoid set is the first step but not always the whole repair.
Read codes with a scan tool that sees the transmission module and note which solenoid circuit is named. Check the fluid level, because a low A6MF1 shifts badly and runs hot. Then measure the named solenoid at the connector and look at the harness and pins; a broken wire sets the same circuit code as a dead coil. Our solenoid testing guide covers the meter checks, and shift flare vs. slip helps separate a pressure-control problem from burnt clutches.
Fitment is by transmission code, not badge. The listing covers the A6MF1, A6MF2, A6LF1, A6LF2 and A6LF3. The A6MF1 and A6MF2 sit behind 2.0L to 2.4L four-cylinder engines in the Sonata, Santa Fe, Tucson, Optima, Sorento, Sportage and Forte, while the A6LF units serve other applications in the same lineup. Hyundai and Kia used more than one six-speed in the same model years, and their valve bodies do not interchange, so read the code off the case tag or send us your year and VIN. If you would rather replace the valve body and solenoids together, see the A6MF1 valve body with solenoids.
If the unit is already slipping, the clutches are worn and an A6MF1/A6MF2 master rebuild kit is the right purchase. A weak or noisy pump can also starve the solenoids; the A6MF1 oil pump assembly is listed for that.
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The listing covers the A6MF1, A6MF2, A6LF1, A6LF2 and A6LF3 six-speed transaxles. Read the code on the case tag or send us your year and VIN before ordering.
Eight solenoids: six variable force (linear) pressure control solenoids and two on/off shift solenoids, the full set that bolts into the valve body. They are remanufactured and tested.
Those are electrical circuit codes for the pressure control solenoids. A failed solenoid coil is a common cause, but a damaged harness or connector sets the same code, so check the wiring before you replace parts.
Hyundai/Kia SP-4 type ATF, or whatever your owner's manual specifies. Do not substitute a generic fluid.
Yes. Clear codes, reset the adaptive values with a scan tool, then drive through all six gears so the computer relearns shift pressure.
