My 99 altimas check engine light was on so I had it checked and turns out to be a bad IAC valve so i buy one and install it and now I have a high pitched whistle coming from it. every thing was installed the same as the old one the hose and 3 plugs are connected. Im at a loss I really dont want to have top take it back out if I can help it. Any help appreciated Thanks TOM
- posted
17 years ago