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Triple-A · 02-12-2009, 01:27 AM

it is v6 90' 3.1L. ...right? ... most likely its the intake gasket.. not the head gasket! It's really common problem on these engines. there is 95% chance you would have internal intake gasket leak anywhere from 90 to 120k mi on these motors. in one year working in the shop i have done at least 20 of them on GM v6 3.1...3.8. it's easy to do it if you have some special tools (like rocker tool to remove the push rods w/o removing the rockers) and a place to do it.
in the shop i used to work i believe like this job would cost you 6-700$$ (not sure, just guess).

Good Luck!
Alex.

02-12-2009, 01:27 AM	#4
Triple-A Join Date: Jun 2006 Location: Old Bridge, NJ Posts: 80 iTrader: (0)	it is v6 90' 3.1L. ...right? ... most likely its the intake gasket.. not the head gasket! It's really common problem on these engines. there is 95% chance you would have internal intake gasket leak anywhere from 90 to 120k mi on these motors. in one year working in the shop i have done at least 20 of them on GM v6 3.1...3.8. it's easy to do it if you have some special tools (like rocker tool to remove the push rods w/o removing the rockers) and a place to do it. in the shop i used to work i believe like this job would cost you 6-700$$ (not sure, just guess). Good Luck! Alex.