WHEN REPLACING INTAKE GASKET THERE IS PLASTIC RING?
1998 Pontiac Firebird
December, 6, 2011 AT 3:47 AM
On 3.8 fuel injectors there is a o-ring on the bottom where it fits into intake. There is also a thin ceramic or plastic ring what is its purpose. I replaced upper intake plenum gasket because of water leak. I was going to replace the bottom o-ring on the injectors and two of the small thin rings just fell into pieces. What do they actually do. Thank u