Thanks for the article! The service ticket says I got a Transmission service, Electronic Tune-Up, Fuel Injection Service, Fuel Filter, Valve cover gasket kit. It doesn't say anything about wires, I'm just "uneducated" on what is under my hood.
I just know that my 2000 LS 3.9 has run awesome the first 130,000 but now it is really struggling.
I was just driving on the freeway last weekend when the engine light came on and it suddenly felt like it was "missing" and started losing power at "shift RPMs" and at stop, especially when in gear and the foot was on the brakes (like at a stop sign).
After all the work so far, you would think that the missing and rough engine running would have been fixed... I'm afraid to take it back to the same mechanic because I wonder what they will do next... Is it dealer time? Anyone know someone in the Kansas City or nearby area that I can trust?