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I am getting ready to do the 60K service on my 03 LS. The maintenance guide recommends changing the automatic transmission fluid on vehicles equipped with AX4S, 4F50N, 4R100, 4F27E. Does anyone know which one, if any of these are the transmission in my LS? Or is there a way I can find out? Thanks

I am thinking of doing something with the exhaust on my 03 LS V8. I would like a little deeper exhaust note. I was thinking maybe removing the resonators. Has anyone done this? If so did it improve the sound? Any other suggestions would be welcome.

My 03 LS has developed a slight electrical glitch. Over the past several weeks I have felt a slight missfire at idle from time to time. Yesterday I was driving and all of a sudden ther was no thottle response. The display in the right corner of the insrument panel read ETC ENGINE FAIL SAFE MODE...