Need Help. 2002 Tahoe Several Problems

[dye4metal]

the abs jogging at low speeds is a chevy recall and you wont have to buy anything, just go to the dealer.

i replaced my intake gasket also, its pretty easy took about 1-2 hours. the rear ignition packs on the valve covers get in the way and need to be moved. thats probably the hardest part ha.

 

[dusty65]

my 2003 tahoe idel is rough need help

I was changing my alternator the other day and when i put the knew one on my Tahoe ran rough so i put the old one back on and it ran fine then the other day i was putting in a new car stereo so I discontented the ground while doing so the when I was done I re-contented the ground and started it up and then my Tahoe ran rough again and still does when I come to a stop my car rpm drops to where its just about to die. is there anyone that has a answer that can help me?