I bought my 2001 WS6 Trans Am with 46,000 miles in November, it's an M6. I unfortunately have no record of previous maintainance. I just broke 50,000 miles and am wondering what things in general I should look into replacing. I had the oil changed and air filter replaced around 48,000 miles. I run 93 octane and still experience a little but of knocking between 4,500-5,000 rpm sometimes. I also think I get a little bit of hesitation sometimes when I accelerate fairly hard. Any tips or things you reccomend I check/replace would be appreciated. Thanks.

 

Change all fluids [tranny, rear end] , tires, ball joints and steering rack for any play, maybe flush and refill radiator....depends on how hard those miles were..but in my experience, these cars seem to last IF NOT ABUSED too much.

 

spark plugs, fuel filter, trans and rear fluid as said before and maybe brakes if they seem bad......

 

No lie. I did mine at 47k and they were fubar. Nice power boost from new plugs and I was able to put it in 5th and 6th at lower rpms without lugging, better mileage.

OTOH, I did the fuel filter at 57k and cut it open out of curiosity. Damn thing looked like new inside.

 

Plugs
Wires
Oil & Filter (Mobil 1)
Differential Fluid (Mobil 1)
Flush & Fill Radiator
Fuel Filter
Trans Fluid (GM Synchromesh)
Techron Fuel Injection Cleaner