First post - Trouble starting..
Hello all. New member here. My 03 with a 4.6 is having trouble starting. The truck has 57k miles. It takes about 2-3 seconds to turn over and it is a bit quicker if I step on the gas while turning the key. First thought was battery or alternator. Took the battery out and had both tested at Autozone and they are fine. Ran a bottle of fuel injector cleaner through about a week ago with no noticable difference. Have cleared two tanks of gas since it started, so I don't think it's bad gas. About a week into this problem, in addition to the rough starts, I have also noticed a slight bit of sputtering for the first 15-45 seconds the car is running. I'm going to replace the fuel filter tonight. If that doesn't help, I've read that maybe the IAC is going bad. I guess I'll try that next. Any other suggestions?
Thanks in advance.