Troubleshooting a Leaky Intake Manifold Gasket

Intake Manifold

An intake manifold gasket is subjected to high amounts of pressure. Because of this, they may experience issues from time to time. You should know what to look for to make sure that you keep it running smoothly and properly. This specific gasket is something that is necessary to keep your motor from running roughly and eventually failing. When there is a leak in your intake manifold gasket, it is important that you know what the cause is so that you can prevent it from happening again and again.

Oil and Coolant

Something that may cause a leak in the intake manifold gasket is oil and coolant mixing together. It is important that these two never mix as they could cause serious problems for your vehicle. Look for oil in your coolant and coolant in your oil. If you see either one of these then you will need to figure out the cause of this as soon as possible. Seeing these two mixing together could be an early sign of gasket failure. The sooner that you fix this issue, the better off your engine will be.

Compression Check

A vacuum or a compression check will help you to determine the exact problems with your gasket and be able to tell if it is something that is near failure. This is made specifically for your intake manifold. This test will tell you if it is in good working condition or if it is something that you will need to keep an eye on and get fixed soon. Whenever your engine is not running very well then these tests should be something that you should do to rule out any possible issues with your intake manifold gasket.

Wear and Tear

Sometimes, your gaskets just get old and need to be replaced. When this is the case they could begin to show signs of leaking or failure. If this is the case, then you will simply need to replace them. Before you do this though, you should make sure that the damage that is done to your intake manifold gasket is due to natural causes and that there is nothing wrong with your vehicle that will make it continue to have problems with your gaskets. The best way to keep your intake manifold gasket lasting as long as possible is to take good care of it. Keep the coolant, as well as the oil, topped off at all times.


A lot of GM model cars have had issues with their intake manifold gaskets. Any GM model vehicles that were made between 1985 and 2005 run the risk of having issues. It is important that as soon as you see any issues with your GM vehicle that you check it for gasket failure right away. It is best to take the car directly to do the dealer so that they can fix the problem for you. If left untreated, gasket failure could eventually lead to engine failure. Fixing the intake manifold gasket for your vehicle is something that is much easier and affordable than an entire engine for your car.