QuestionQUESTION: what could cause my to hesitate while driving at 50 55mph
ANSWER: IS or HAS the CHECK ENGINE light ever illuminated on the dash while driving the vehicle ?
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QUESTION: yes its been on since I brought the and I took it to goodyear and they said I need two new o2 sensors. but would that cause it to hesitate
ANSWER: Replace the oxygen sensors. Then check the spark plugs to make sure that they are not discolored with a blackish color on the bottom of the plugs. If they are, Clean or replace them.
The oxygen sensors determine how much oxygen vs gas vapors that are in the exhaust system and send signals to the computer which determines how much fuel to deliver to the engine and if the oxygen sensors are NOT working the engine will not get enough fuel, Thus a hesitation.
Once you replace the oxygen sensors, You have to CLEAR (erase) the codes from the computer via the climate control panel.
Disconnecting the battery will NOT erase the codes.
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QUESTION: and how do u clear the computer through your climate control system
AnswerFIRST you need to replace the 2 sensors.
Then:
1. turn the ignition switch to the ON position. Do NOT start the engine.
2. Simultaneously push and hold the OFF and WARMER buttons on the climate control panel for 3 seconds and release them.
3. On your fuel data display you will see codes in the form of LETTERS & NUMBERS appear and along with EACH CODE you will see the word HISTORY or CURRENT.
4. The display will stop at PCM?
5. Tell me EXACTLY what appears on the fuel data display and if the codes are history or current.
6. Turn ignition switch OFF.
