My spark plugs and wiring and tubing on my car cylinder (99 Plymouth neon) were drenched in oil. The problem got fixed. or so I thought. The people at advanced read it on their machine before it got repaired and said cylinder 2 misfired. When driving it it surge and kinda hesitate when accelerating. Check engine light came on and off. drove me crazy. After the car got repaired, same thing (a week later, after getting off of the interstate). I even got an oil change 4 hours after it got repaired! What‘s wrong? I‘d like to have a good idea what‘s wrong before I take it back to the shop and/or probably causing it. Bad spark plugs, oil pump cruddy? Help! I‘m hyperventilating.
Hopefully the problem is only due to the fault code(s) needing to be cleared. As your car is post 1996, this can only be done with an OBD 2 scan tool. Most any auto parts store can do this for you if you do not have this tool. You can try the old method to clear them by disconnecting the negative battery cable for at least fifteen seconds, but it might not work due to the fact of the newer type diagnostic system. On Chrysler products after 96, all cars went to the new OBD 2 system, but Chrysler did leave in the ability to check most codes with the old method of Key On, Key Off to read them on the check engine light. The only problem with this is the old method does not read all the codes possible on the newer computers. It still may require the diagnostic tool to check to see what codes are found before clearing them. Some other problem may have been noticed.
i good brand is element's durathane.theyre light but tough! theyre especially made for preventing flatspots and trust me, flatspots are annoying. they start to make an annoying clicking sound when they roll on the ground and if theyre too beat up, then youll just end up eating a serving of asphalt.
Once the Computer(ECM) has seen a hard code (like a misfire) it will turn on the engine light and store a trouble code in the computer's memory. That code and Check engine light will not turn off until the ECM's memory is reset/cleared. You will need someone with a scanner to reset/clear the code. It may turn off on its own once it hasn't seen the problem for at least 50 to 100 ignition cycles.
You need to know what the new check engine light error code is. It could be a new code or it could be an ignition misfire code again like last time. When you say the car did the same thing again, do you mean it's surging and hesitating again or just that the yellow check engine light came back on? If it's surging and hesitating again, the shop will simply try disconnecting and reconnecting the new spark plug wires at both ends, one at a time hoping it's just a bad connection. If you get the codes read out again, write them down and have them clear the codes. However, a history of the code occurence will remain in the computer many times until you drive a few weeks without the check engine light coming back on.
