I can't find transmission filter on 03 sonata 4 cyl. autozone sold me a spin on type that looks like a oil filter

Depends on your engine.

1980 JEEP CJ-7 2.5L 4-cyl Engine Code [B]
CAPACITIES
Engine, GM without filter..........2.4 quarts[1]
Wix Filter ........ 51040
Cooling System, Initial Fill..........8.0 quarts
Automatic Transmission, A904, 30RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, A999, 32RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, Total Fill
3 speed A999, 32RH..........8.4 quarts
3 speed A904, 30RH..........7.0 quarts
Manual Transmission, 4-SPD, SR-4..........3.0 pints
Manual Transmission, 4-SPD, T176..........3.6 pints
Differential, Front..........2.5 pints[3]
Differential, Rear..........4.9 pints
Transfer Case,..........4.0 pints

1. Add extra oil when replacing filter. After refill check oil level.
2. With engine automatic transmission operating temperature, shift through all gears.
Check fluid level in NEUTRAL and add fluid as needed.
3. 1984-1992 Models with command-Track, add 5 oz of 75W-90 GL-5 to shift motor housing opening.

TORQUES
Oil Drain Plug.....25 ft-lbs
Manual Transmission T176
Fill Plug.....15 ft-lbs
Drain Plug.....15 ft-lbs
Manual Transmission SR4
Fill Plug.....20 ft-lbs

1980 JEEP CJ-7 4.2L 6-cyl Engine Code [C]
CAPACITIES
Engine, without filter..........5.0 quarts[1]
Wix Filter..... 51522
Cooling System, Initial Fill..........11.0 quarts
Automatic Transmission, A904, 30RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, A999, 32RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, Total Fill
3 speed A999, 32RH..........8.4 quarts
3 speed A904, 30RH..........7.0 quarts
Manual Transmission, 4-SPD, SR-4..........3.0 pints
Manual Transmission, 4-SPD, T176..........3.6 pints
Differential, Front..........2.5 pints[3]
Differential, Rear..........4.9 pints
Transfer Case,..........4.0 pints

1. Add extra oil when replacing filter. After refill check oil level.
2. With engine automatic transmission operating temperature, shift through all gears.
Check fluid level in NEUTRAL and add fluid as needed.
3. 1984-1992 Models with command-Track, add 5 oz of 75W-90 GL-5 to shift motor housing opening.

TORQUES
Oil Drain Plug.....30 ft-lbs
Manual Transmission T176
Fill Plug.....15 ft-lbs
Drain Plug.....15 ft-lbs
Manual Transmission SR4
Fill Plug.....20 ft-lbs

1980 JEEP CJ-7 5.0L 8-cyl Engine Code [H]
CAPACITIES
Engine, without filter..........4.0 quarts[1]
Wix Filter..... 51258
Cooling System, Initial Fill..........13.0 quarts
Automatic Transmission, A999, 32RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, A904, 30RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, Total Fill
3 speed A904, 30RH..........7.0 quarts
3 speed A999, 32RH..........8.4 quarts
Manual Transmission, 4-SPD, SR-4..........3.0 pints
Manual Transmission, 4-SPD, T176..........3.6 pints
Differential, Front..........2.5 pints[3]
Differential, Rear..........4.9 pints
Transfer Case,..........4.0 pints

1. Add extra oil when replacing filter. After refill check oil level.
2. With engine automatic transmission operating temperature, shift through all gears.
Check fluid level in NEUTRAL and add fluid as needed.
3. 1984-1992 Models with command-Track, add 5 oz of 75W-90 GL-5 to shift motor housing opening.

TORQUES
Manual Transmission T176
Fill Plug.....15 ft-lbs
Drain Plug.....15 ft-lbs
Manual Transmission SR4
Fill Plug.....20 ft-lbs

Oilman

look inside owners manual.it will tell you type oil to use or go to auto parts store the sales person can look up type transmission fluid your vechicle use.

The transmission has an external spin on type filter which is mounted on the outside of the transmission.

The transmission oil starts breaking down at 30000miles. Most car dealers change the transmission oil and filter at the second scheduled maintenance service at 60000miles. Changing the transmiosion oil is an insurance for the transmission. Make sure to use the specific transmission oil for your car.

sorry but time to visit the transmission shop. the only thing you could try first is Lukas Transmission oil sold at parts stores one quart only. make sure you get the oil for transmissions and not the crankcase.

1995 HONDA ACCORD 2.7L 6-cyl Engine Code C27A4 C27A1

Engine Oil Grade 1......API All TEMPS......5W-30
Manual Transmission,......SJ All TEMPS......10W-30, optional 10W-40
Automatic Transmission,MPZA......AF2

CAPACITIES:
Engine, with filter..........4.4 liters
Automatic Transmission, MPZA Initial Fill..........2.7 liters
Automatic Transmission, Total Fill
4 speed MPZA..........6 liters
Manual Transmission, ..........1.9 liters

1995 HONDA ACCORD 2.2L 4-cyl Engine Code F22B1 VTEC

Engine Oil Grade 1......API All TEMPS......5W-30
Manual Transmission,......SJ All TEMPS......10W-30, optional 10W-40
Automatic Transmission,A0YA......AF2

CAPACITIES:
Engine, with filter..........4.3 liters
Automatic Transmission, A0YA Initial Fill..........2.4 liters
Automatic Transmission, MP0A Initial Fill..........2.4 liters
Automatic Transmission, Total Fill
4 speed A0YA..........6 liters
4 speed MP0A..........6 liters
Manual Transmission, ..........1.9 liters

2007 HYUNDAI SONATA 2.4L 4-cyl Engine Code [C]

All TEMPS......5W-20 preferred
Above -18C......10W-30 optional
Engine, with filter..........4 liters

2007 HYUNDAI SONATA 3.3L 6-cyl Engine Code [F]

All TEMPS......5W-20 preferred
Above -18C......10W-30 optional
Engine, with filter..........5.2 liters

hi from uk have a look directly under the alternator ? oil filter screws direct ino side of engine horizontally and is a small cylindrical type

start with 4 quarts and then check it
good luck ray

ok, here's the deal. there are 2 types of transmissions one with an external oil filter( kinda looks like the oil filter for the engine) and then there is the other type of transmission that was produced later on the 4 cylinder engines that doesnt have a removable filter. it does have a screen that is not servicable, it can only be replaced during the rebuild of the transmission. this design is supposed to be "back flushed" to remove all debris. Most good transmission shops have this type of system that pressureizes the system and does this.

If your gonna do this on your own, what you will need to do is buy 4-5 quarts of transmission fluid, drain the oil from the pan on the front of the engine, reinstall it, add the fluid, drive for 30 min, and then repeat the process.