+18 1999 Buick Century Check Engine Light Service Engine Soon References. Perform the servicing soon after you see the service engine soon light turn on. The light was reset but came back on again after a couple of weeks.
The video above shows how to locate the on board diagnostics obd plug location on your 1999 century, how to read the trouble codes and how to reset or clear the check engine light using a. The first step is to check and tighten the gas cap. I was told that i need three new coils i need plugs & wires (approximately $690.00).
