Heat Kills: A Mechanic’s Guide to Not Cooking The Engine

Engines don’t fail quietly—they overheat, seize, and grenade when no one’s looking. And when that temp needle spikes, you’ve got seconds to act or it’s game over

This guide skips the theory and gives you straight-up methods to spot cooling system failures before the head gasket taps out. It’s built for the wrenchers who know the signs—but need a bulletproof system to stop the damage before it snowballs.

From fan relays to water pumps, air pockets to cracked plastic bullshit—this guide’s about protecting engines, saving cash, and not being the one who missed the obvious.

HERE'S WHAT'S PACKED INSIDE:

• The Big Red Flags That Say “Shut It Down” – Warning signs you ignore once. Miss ‘em again, and you’re paying for the rebuild.

• How to Pressure Test Like You Mean It – Skip the spray-and-pray routine and test like the pro you are. Because guessing under pressure is how parts die.

• Pinpointing Overheats When It’s Not the Thermostat – Because it never is. And chasing it anyway just burns time and coolant.

• Cooling Fans, Sensors, and Other Silent Failures – The stuff that dies without throwing a code. Find these fast—or the engine pays for it.

• What to Check Before You Call the Head Gasket – Don’t blame the worst-case until you’ve ruled out the simple stuff. Because once you say 'head gasket,' it’s game over until you’re damn sure.

• How to Keep Your Cool When the Engine Doesn’t – The step-by-step logic that saves your ass and the motor. Skip it, and you’re just throwing tools and hoping something sticks.

From the first spike in temp to the last puff of steam, you’ve got one shot to get it right. This guide makes sure you do—before the block’s only good as a core.

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