A 2001 saturn SL1 w/ 171,000.00 miles has been taken care of like a baby, oil every 3k and so on any how it just started from zero up until about 40 it get a little bit of bucking
Optional Information:
2002 Saturn SL1 4cyl
Already Tried:
timing chain lifters some stupid exhust pice that throws exhust back into engine