Need Help after upper intake job
I changed the upper intake on my 97 sse. Everything seemed to go alright, it started up and ran fine. Drove about 15 miles to get gas and when I got back it was making a high pitched sound. Can't tell where it is coming from. Checked the oil and it was over filled by maybe a quart and a half. Must not got it all out when I drain it. Also there is a real lot of suction through the oil fill hole(back presser). the high pitch sound stops if you take off the oil fill cap or pull the dip stick up.