I hope you mean $300 not $3,000. $300 would be max. no matter where you live. I don't care how new or what kind of car, it is just not that complicated a job . For $3,000 I'll fly to your house and do it in your driveway.
By replacing the whole gasket.
Irratic idling condition is indication of intake/inlet manifold gasket leak. Change gasket immediately. This particularly applies to EFI engines. Newaz.
i am replacing the starter on olds 1995 aurora
About 450.00
Yes, you must install a new intake manifold gasket.
No, You don't put anything on Head, Exahust or intake gaskets. CJ actually you do put a 1/8'th inch bead of black silicone on the gasket to ensure no leaks occur and it also helps hold the gasket in place when your putting the intake manifold on. I'm a ford master technician, you ALWAYS use silicone when replacing intake and head gaskets. =DK
The intake gasket is the gasket that conncects from your air filter into your intake manifold
It's supposed to do that.
Absolutely not. The two are not related in any way. If this was just a personal concern, just replace the intake manifold gasket. If this was what a repair station has quoted or already charged you for, Id go somewhere else or talk to a lawyer respectively.
Between the intake manifold and the cylinder head.
between the head and intake manifold
Assuming this is a 4.3L engine, the upper intake manifold gasket would be between the upper intake manifold and the lower intake manifold.