6.7 Powerstroke Blown Head Gasket Symptoms

Recently, your car hasn’t been running properly. The words that no one wants to hear are spoken when you bring the vehicle to your trusted technician: “You have a blown head gasket.” So I am here to cover the overall not limited to 6.7 Powerstroke Blown Head Gasket Symptoms.

As the money signs start to mount, your head begins to spin. You’re aware that the repair will be time-consuming and costly, but you still have questions about what a head gasket is, what causes one to blow, and how to spot one. For any of your head gasket-related questions, continue reading.

What Does A Head Gasket Do?

Our car’s engine is split into two sections: the cylinder head, which houses the valves, spark plugs, and camshaft(s), and the cylinder block, which houses the pistons and cylinders. The head gasket sits in cushioning between these two substantial engine components.

The head gasket, one of the most important gaskets in your engine, is made to keep coolant and engine oil from leaking into the cylinders as well as to the outside. It also serves to seal the cylinders’ firing pressure. When sealing in cylinder pressure, coolant, and engine oil flowing via casting ports, the head gasket must endure the strains caused by the two surfaces expanding, contracting, warping, and rubbing together.

What Causes A Head Gasket To Fail?

6.7 Powerstroke Blown Head Gasket Symptoms
Image of Head Gasket

Head gaskets are generally quite durable and typically last for well over 100,000 kilometers. Nevertheless, a few circumstances can result in an early head gasket failure.


One of the most frequent reasons for a burst head gasket is an overheated engine. The gasket is exposed to temperatures over what it is designed to withstand when the engine is running too hot. High temperatures can lead to failure. The cylinder head or engine block may distort or crack as a result of overheating, which will prevent the head gasket from properly sealing.

Detonation and Before Ignition

Premature head gasket failure can be caused by pre-ignition as well as detonation. Both of these circumstances cause the cylinder to experience considerable heat and pressure, which severely stresses the gasket as well as the pistons and valves. Keep in mind that detonation happens after pre-ignition, which happens before the spark plug fires.

Abrupt Fluctuations in Temperature

Depending on the engine’s temperature, the head gasket grows and shrinks. When you suddenly apply the brake after starting your engine cold, the shock of the sudden temperature difference may lead to a head gasket failure. Avoid head gasket failure by letting your car reach the proper operating temperature before accelerating quickly.

Age and High Mileage

Gaskets degenerate. Cars with a lot of miles on them but no head gasket replacement may experience problems. The materials in the gasket may degrade with time and cease to seal as well as they once did. After a specific amount of miles, manufacturers advise replacing the head gasket. Over that mileage, you run a larger risk of experiencing head gasket failure.

Faulty Installation

If the head gasket was installed improperly, it is unlikely to maintain a seal for very long, if at all. If you had a head gasket replaced yet experienced problems right away, there might have been a problem with the installation.

6.7 Powerstroke Blown Head Gasket Symptoms

(These signs are not limited to this engine but to overall gasoline engines)

White Material and Blue Exhaust Smoke in Your Oil

6.7 Powerstroke Blown Head Gasket Symptoms
Blue Smoke

There is a good likelihood that the issue is with the head gasket if your automobile has a rocket-ship appearance and blue smoke is coming from the exhaust. Oil is possibly burning inside the cylinders due to leakage. You most likely have damaged head gaskets if you inspect your dipstick and find a pasty white stuff.

White Exhaust Smoke

White Smoke From Exhaust
White Smoke From Exhaust

If you see white smoke coming from your exhaust, there is probably coolant leaking into the cylinders. This typically occurs when the head gasket has been compromised, causing the coolant to produce this white vapor. Have it fixed so that the breach doesn’t continue to grow.

Engine Overheating

6.7 Powerstroke Blown Head Gasket Symptoms
Engine Hot

The engine will overheat when the coolant depletes when coolant seeps into the cylinder as a result of damaged head gaskets. The head gasket is most likely blown in this situation. Remove the radiator overflow cap and listen for air bubbles when the engine is revving to check for a coolant leak on your own.

Engine Poor Performance


If a blown head gasket is left unattended, your engine will lose power, run erratically, and become less efficient. Spark plugs will be harmed when coolant spills into the combustion chamber, which will lead to a poor ignition of the fuel mixture. Additionally, blown head gaskets allow gases to escape from the cylinder, reducing the overall pressure that the cylinder is capable of producing. An engine that runs poorly as a result of all these conditions.

Can I Repair My Own Blown Head Gasket?

Most likely not. The cylinder head must be taken off for the exceedingly involved repair of a head gasket. The complexity of this service takes a lot of time from the normal person and gives them a lot of space for error. Your best option is to tow your automobile to a garage, unless you are an ex-technician or a really skilled do-it-yourself with the right space and tools.

Can I Drive If My Head Gasket Has Blown?

No, if you think your head gasket has failed, you shouldn’t drive. You could seriously harm the engine, quickly requiring an engine replacement instead of only a head gasket change.

How Do I Avoid Burning My Head Gasket?

Maintaining the engine coolant at the optimal amount with the right mixture per the manufacturer’s recommendations is the best strategy to stop head gasket failure in your car. Have it looked at if you notice coolant leaking onto the ground or garage floor. Make it a practice to regularly check your temperature gauge, and if you see that it is running hot, have your professional technician examine it right away.

About The Author

Avatar for Ibrar Ayyub

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

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