Q: 2000 Hyundai Sonata 2.4l replaced the TPS now the car won’t shift out of 1st gear, also hard shifts from park to drive or reverse

asked by on March 31, 2018

2000 Hyundai Sonata 2.4l replaced the TPS now the car won’t shift out of 1st gear, also hard shifts from park to drive or reverse. Starts fine and the initial idle is between 800-1000rpm with a little fluctuation. Any suggestions on how to get it to shift into 2nd, 3rd gears?

My car has 125000 miles.
My car has an automatic transmission.

Throttle Position Sensor Replacement $144.21 - $717.44 Get a Quote

The first issue to deal with is the part number. Are you sure the part is correct? To reduce diagnostic headaches, and post-installation problems, it is best to buy the OEM sensor from a Hyundai dealer. If you have the correct sensor, preferably one from the dealer, check the wiring harness and view the sensor output on a real time scan tool. It may be that the computer has to go through a re-learn to adapt to the new TPS. If you remove the battery negative cable from the battery post and touch the negative CABLE to the positive cable, that will erase the stored values in the PCM. Perform that procedure with caution ONLY if you understand what is involved. If you want the faulty operation diagnosed and resolved by a mechanic, please request service and the mechanic will get this promptly resolved.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Upgrade stereo size dimensions - 2013 Infiniti FX37
Hello. The exact speaker sizes depend on whether or not your vehicle is equipped with a Bose system. If it not, then your vehicle uses 2 x 3.5" tweeters in the dash, 2 x 6.5" speakers in the doors, and...
Traction control light comes on occasionally in dry weather
The traction control system is dependent on wheel speed sensors at all 4 wheels. It reads the speed of each individual wheel. If it detects a wheel or wheels, spinning faster than other wheels, it can apply braking or reduce...
Why is my brake fluid leaking? How can I test where the problem is?
The only fluids that could be leaking near the front tire is going to be the brake or transmission fluid leak or coolant is leaking (https://www.yourmechanic.com/services/oil-fluid-leak-inspection). You should use a clean white paper towel under where the leak is so...
In this case - which parts should be changed first (CV axles ,wheel bearing ,calipers ) to solve the problem? 2009 Kia Optima
Hi - we need a bit more information to know how to prioritize these possible repairs. A roaring noise while driving would evidence wheel bearing issues. Pulling to one side or the other would indicate a brake caliper issue. Squealing,...
The clutch went out and clutch fluid leaking out.
Check the slave cylinder under the vehicle and see if the seal blew out. Fill up the clutch master cylinder if its low and pump the clutch pedal a couple of times and then look for the leak. Pull back...
Car pulls to the right after replacing the driver side rear tire.
Hi there. The tire guy was correct. Here is an analogy to consider. Let's that you had a straight stick and that on one end, you have a round wooden block that has a diameter of 6" round. On the...
Stalls when accelerating from stop
Hello and thanks for writing in. The most common problem with the vent valve is when it sticks open or doesn't close as a result of the solenoid (https://www.yourmechanic.com/services/evaporation-vent-solenoid-replacement) not working properly. This creates an EVAP system leak and triggers...
Pressing the gas pedal and not getting the desired output
It may not have anything to do with your valve adjustment. Your car is almost 30 years old so it could have any number of problems. I would begin by checking for air leaks. Look at all of the hoses...
Scion tc, 2005, 83000 miles. Just had the battery replaced after the car was 'weak starting'. Now the car is shaking, and it feels
Some learned engine operating parameters values, stored in the PCM (engine computer), can be lost when the battery is replaced. However, after 25 miles or so, the engine should operate normally as it did before. If it doesn't, then there...

Related articles

Symptoms of a Bad or Failing Refrigerant Pressure Switch (Sensor)
Common signs include the AC working intermittently or not at all, noise coming from the system, or warm air blowing from the vents.
How Long Does an Air Charge Temperature Sensor Last?
The The air charge temperature sensor, also referred to as the intake air temperature sensor, works to monitor the temperature of the air as it enters your car engine. The engine’s computer has to have this information so it can...
How Long Does a Low Water Sensor Last?
The The heat that is produced by your engine can be quite harmful if not cooled down. There are a variety of systems in your car that are designed to make sure that the internal temperature of your engine stays...