my 98 gt is having trouble starting. it will only stay running when i am pressing the accelerator. if i let go to press the gas or put it into gear it stalls and stops. i replaced the fuel filter but i guess that is not it. help please.
It's very easy to remove, I replaced it in less than 10 minutes. It's held on by two 8mm bolts on the front side of the upper intake plenum. It looks like this:
And is located here:
You can get it from any auto parts store, but I found it cheapest at Advance Auto.
Sounds like the IAC to me as well. They are notorious for causing issues on our cars. You can try cleaning yours first by removing it and spraying it out with some electronics safe parts cleaner. Sometimes they get gunked up and don't function correctly.
Do you have a check engine light or anything? If so, if you can get the car to an Advanced Auto or Autozone they will pull your trouble codes for free.
Cleaning the IAC will only get rid of your problem very momentarily, go ahead and replace the IAC, some people go through two IAC's a year.
And some peoples car actually idle fine the w/IAC deleted.