[tupac05]

Hey everyone, I need some help. I have a 91 Century with a 3.3 V6. About a week ago it started to stall all of a sudden when i came to a stop at a light or stop sign. Car will idle in park all day long and runs down the road fine but will not idle at a stop in gear. About a week before this problem i started hearing a ticking noise that sounds internal(like valves need adjusting) but dont think the two are related. Anyways i assumed that it was maybe just bad gas causing the stalling so i added some dry gas and some injector cleaner and the car ran fine the next two days. Then it started stalling again and i then changed the fuel filter. This didnt help so i took the car to a shop to be looked at. After having the car for half a day and road testing it several times they said it was running rough but never stalled on them...computer diagnostic showed no codes...and the best they could do was to do a tune up and fuel injector cleaning. It then ran fine for a day and a half and i thought the problem was solved until it started stalling again. I dont want to keep replacing things and blowing money erradicly...have found some suggestions on the web like bad oxygen sensor, idle speed not set right, and bad idle air control valve, but would really appreciate it if someone could give me any other ideas...
thanks