Upper intake gasket? Not much. It's a quick and easy repair (about 30 minutes) with a part going for $12 to $30. Figure on $45 to $160.
Lower could be from $750 to $2600 depending on local labor rates and thoroughness of the mechanic. Aren't you glad yours isn't leaking?
I just had the intake manifold gasket replaced on my 96 century yesterday and my bill was $450 but my gasket was only leaking out. If its leaking into your oil it may be more.
The intake manifold, head, and exhaust manifold must be removed to gain access to the gasket.
Plan on at least 6 hrs.
if taken care of 250-300k, fix the manifold intake. good cars
The PCV valve plugs into the rocker arms cover or intake manifold.
typically ther're on the top of the valve cover or on the intake manifold.
The manifold itself doesn't leak, but the gasket that seals the intake manifold to the cylinder heads and the engine block does. The gasket is subjected to alot of thermal expansion and contraction and over time, fails to retain the sealing capabilities needed to prevent leaks. One note. If you have a large oil leak, check the oil pump drive oring for being the problem, not the intake. The oring tends to dry out and not seal. Typically, it will leak alot of oil when the engine is cold, but slow down once warm.
my dad and me took off the manifold and air intake off to get to it. and it didn't take more than a hour
Correct torque on 2000 model : 18 Ft. lbs.- upper intake manifold [ plenum ].
Yes it is important. You can loose gas mileage and do damage to the engine over time.
The head has to be removed on the 1993 Roadmaster to get to the gasket. You will need to remove the intake, exhaust manifold, and valve cover then unbolt the head to remove it. Check the head for warpage while it is removed.
What's wrong with it?