Here's a breakdown of what's happening and what to do next:
What's happening:
* Antifreeze in the exhaust: This usually indicates a leak in the cooling system. It's possible the head gasket is blown, but other possibilities include:
* Cracked cylinder head: This is less common than a blown head gasket but still a possibility.
* Cracked engine block: This is also less common, but it's possible.
* Faulty coolant pressure cap: A bad cap can allow coolant to leak into the cooling system and then into the combustion chamber.
* Leaking radiator hose or hose clamp: A leak here can allow coolant to enter the exhaust system.
* No mixing with oil: This is a good sign! It suggests that the leak is not severe enough to be contaminating the engine oil, which would be a serious problem.
What to do:
1. Don't panic. While a blown head gasket can be serious, it's not always a death sentence for your engine.
2. Inspect for visible leaks: Look carefully around the engine for any signs of coolant leaking. Pay attention to the radiator hoses, the thermostat housing, the water pump, and the head gasket area.
3. Pressure test the cooling system: A mechanic can use a pressure tester to check for leaks in the cooling system.
4. Check the coolant pressure cap: Make sure it's in good condition and is sealing properly.
5. Inspect the exhaust: If you have access to a block of wood, you can block the exhaust pipe briefly while the engine is running. This will build up pressure in the exhaust system and help you determine if coolant is entering the system under pressure.
Should you drop the engine?
Dropping the engine to replace a head gasket is a major undertaking. Here's what to consider:
* Severity of the leak: If the leak is small, you might be able to repair the head gasket without removing the engine.
* Cost vs. value: Dropping an engine is expensive. Consider the value of your Camaro Z28 and whether the repair is worth the investment.
* Other repairs: There may be other repairs needed while the engine is out, such as timing belt replacement or other maintenance.
Recommendation:
1. Consult a mechanic: It's crucial to have a qualified mechanic diagnose the problem and recommend the best course of action.
2. Consider your options: Weigh the cost of repair versus the value of your car. A blown head gasket can be fixed, but it's an expensive repair.
Don't delay in getting your car checked out. Catching the problem early could save you money and headaches in the long run.
