Like all components, your Mazda MPV head gasket will wear out one day. That's why it's important that you're prepared anytime your head gasket fails. To help you in dealing with some of its usual problems, here are some useful troubleshooting tips:
If you find puddles of coolant on your garage or on the parking space, immediately check your head gasket because it may have already blown. A damaged head gasket usually leaks coolant and leave puddles of it on your garage or on the parking space. Now, this leakage isn't only attributed to the head gasket as other components can also be sources of the leak. However, if you find coolant leakage on your car and experience frequent overheating, you can bet that your head gasket is to be blamed. But if you want to be sure, you can buy an ultraviolet dye test kit from any auto supply store and use it to find the real source of the leak. Should the head gasket be proven guilty, don't think twice in replacing it with a new one.
You may experience compression loss once a cylinder fails to function properly after your head gasket wears out. This may also result to air leaking from the engine, hissing or audible sounds, and loss of power. Once your cylinder loses compression, your engine will surely run inefficiently and will have problems starting up. Should you suspect your car to have a blown head gasket and a malfunctioning cylinder, manually check the compression using a compression gauge. Just make sure that you remove all spark plugs and disable the ignition coil before you do the test.
Your head gasket can have rust spots on its surface. If left unattended, this can spread out and cover the entire surface of the component. You wouldn't want this to happen because it may affect the performance of your head gasket and cause other problems. So if you happen to find rust starting to form on the surface, you have to immediately remove them using an abrasive pad and rust remover. However, make sure to just lightly scrub the surface to avoid damaging it.