You’ll need to pull the entire manifold out to get the the gaskets so the air intake and hemi hat will need to be removed. If the intake manifold gaskets leak coolant into the intake manifold the engine may overheat as a result, without any visible external leaks. Unless you have a lot of experience fixing cars mechanically, you should call the professionals! These explosions need oxygen, though, and in most cases that oxygen is drawn in from the outside environment with the intake manifold. I'm the owner of a 94 Camaro with the 3.4 V6 that I just restored. ( Note: Use silicone rubber to help seal at the manifold ends and coolant ports to ensure a proper seal.) I bought an edelbrock gasket set with: Intake Manifold, Exhaust Manifold, Valve Cover, Head, and Thermostat Housing Gaskets. SOURCE: intake manifold gasket / replace 3.8L Engine NOTE The 3.8L (VIN K) non-supercharged engine uses a two-piece intake manifold consisting of an upper air plenum which mounts the throttle body and a lower intake manifold assembly which houses the fuel injectors. The short gaskets are for the ends of the manifold. Since then, I had replaced my water pump, and had removed the air intake to the throttle body. I need a professional opinion. The supercharger serves as the upper manifold. Note that there are two short gaskets and two long gaskets. coolant leak from intake lower manifold gaskets 2008 f150 4.2. Any coolant leaks should be addressed as soon as possible to prevent the possibility of serious engine damage occurring due to a bad intake manifold gasket. It's designed to last the life of the vehicle, but often it will be replaced when doing related engine repairs in order to prevent problems with it down the road. Having bad intake manifold gaskets in your vehicle can be dangerous for you and your passengers. Coolant will need to be drained in the process and will need to be refilled. If it is a 6 cylinder engine you will probably need to remove the intake manifold to replace the rear valve cover gasket. There is a gasket that goes between the upper and lower intake that you can get at a parts store for under $10. Leaking intake manifold gasket. Just like what the question says. Similar intake manifold gasket failures have also occurred on some 1990 to 2002 Chrysler 3.3L and 3.8L V6 engines. I put lifters in my wifes Blazer this summer and I never waited. Intake manifold gasket when they fail they leak and can cause idling issues and coolant leaks depending on where they failed and are leaking. Very good write up. If you’re noticing an uneven idle, loss of performance, loss of coolant or a visible seepage of coolant around the actual intake manifold, chances are that the intake manifold gaskets are worn and should be replaced. How often do intake manifold gaskets need to be replaced? I am doing a intake gasket job on my truck this saturday. After a few tests, I came to the conclusion that it was either the intake manifold gasket leaking or the fuel injector seats. Some intake manifold gaskets also seal engine coolant, and if the gasket wears out it may lead to a coolant leak. The intake itself does not need to come off. The 3.8L (VIN 1) supercharged engine uses a similar lower intake manifold. What I was referring to was the intake gaskets that came in the gasket set from Summit. A mechanic can replace an intake manifold gasket for a few hundred bucks including parts and labor. as far as replacing the actual intake unless it is cracked or has other damage you usualy do not replace it when replacing failed gaskets. WARNING: It's not just your intake gaskets! Intake manifold needs a high quality and functional intake manifold gasket to work. A factory intake gasket set costs about $6, which makes the job about $216 in total. This is a photo of the intake gaskets that come with the set: The gaskets can be bought as set ~$70 online. This type of gasket is ideal for circle track racing where restrictor plates are used, as well as for long service life engines such as those in street applications. The intake manifold gasket is one of How often do intake manifold gaskets need to be replaced? Do you really need to put rtv on the intake manifold gaskets when replacing them? Retaining bolts with a wrench, then lift the manifold off the alternator and the a/c pump, had! 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