The first thing we should do is check the transmission fluid level and if okay. Let's run the codes because it sounds like you have an input shaft speed sensor that is not working correctly. Here is a guide and diagrams below to show you what to do:
Automatic Transmission Fluid
Type .................... Hyundai Genuine ATF SP-III, Diamond ATF SP-III, or SK ATF SP-III
NOTE: Check that the fluid level is at the HOT mark on the oil level gauge. If the fluid level is lower than this, add more fluid until the level reaches the Hot mark.
ATF .................... 8.2 US qts (7.81 L)
AUTOMATIC TRANSAXLE FLUID
1. Drive the vehicle until the fluid reaches normal operating temperature [70 - 80°C].
2. Place the vehicle on a level surface.
3. Move the selector lever through all gear positions. This will fill the torque converter and the hydraulic system with fluid and move the selector lever to the N (Neutral) or P (Park) position.
4. Before removing the oil level gauge, wipe all contaminants from around the oil level gauge. Then take out the oil level gauge and check the condition of the fluid.
NOTE: If the fluid smells as if it is burning, it means that the fluid has been contaminated by fine particles from the bushes and friction materials, a transaxle overhaul may be necessary.
5. Check that the fluid level is at the hot mark on the oil level gauge. If the fluid level is low, add automatic transaxle fluid until the level reaches the HOT mark.
Auto transaxle fluid:
Type: DIAMOND ATF SP-III, SK ATF SP-III
Quantity: 7.81 L (8.2 US qt, 6.9 Imp. qt)
NOTE: Low fluid level can cause a variety of a abnormal conditions because it allows the pump to take in air along with fluid. Air trapped in the hydraulic system forms bubbles, which are compressible. Therefore, pressures will be erratic, causing delayed shifting, slipping clutches and brakes, etc. Improper filling can also raise fluid level too high. When the transaxle has too much fluid, gears chum up foam and cause the same conditions which occur with low fluid level, resulting in accelerated deterioration of automatic transaxle fluid. In either case, air bubbles can cause overheating, and fluid oxidation, which can interfere with normal valve, clutch, and brake operation. Foaming can also result in fluid escaping from the transaxle vent where it may be mistaken for a leak.
6. Insert the oil level gauge (A) securely.
Check out the diagrams (below). Please let us know what happens.
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Saturday, July 30th, 2022 AT 1:33 PM