The TPS sensor on the 1999 Dodge Dakota sends information to the engine control management computer about the Dakota's throttle position. Dirt, oil and other debris can find their way inside of the sensor and adversely affect the electronic components inside. Symptoms such as idle surging and hesitation during acceleration can occur when the TPS becomes dirty. Cleaning the TPS can help alleviate these symptoms and restore the Dakota's original performance.
Open the hood and disconnect the negative terminal cable from the battery. Disconnect the electrical wiring harness from the TPS.
Remove the two Phillips-head screws holding the TPS to the throttle body. Remove the TPS from its mount on the throttle body.
Use a Dremel tool with a 1/8-inch drill bit to drill a hole into the metal face of the TPS. Do not drill deeply into the TPS, otherwise the electrical components inside will be damaged.
Attach the spray can straw to the spray nozzle of the aerosol electrical component cleaner. Stick the straw into the hole and spray a liberal amount of electrical component cleaner into the TPS. Rotate the TPS so the solvent reaches every possible area.
Shake out any excess solvent and allow the TPS to dry for at least 30 minutes. Place a small patch of electrical tape over the hole. Spread silicone sealant over the tape and surface surrounding the tape. Allow the silicone to dry and harden for at least 30 minutes.
Attach the TPS to its mounting area on the throttle body. Reinsert the two retaining screws and tighten them with the Phillips-head screwdriver.
Reconnect the electrical wiring harness to the TPS. Reconnect the negative terminal cable to the battery and close the hood.
