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Smoke is coming through the vents of your van Then ac quit Could there be a connection?

Yes, there could be a connection between the smoke coming through the vents of your van and the AC quitting. Here are a few possible reasons:

1. Blown Head Gasket: Smoke coming through the vents could be a sign of a blown head gasket. A blown head gasket allows coolant to leak into the combustion chamber, causing the engine to overheat and produce smoke. This smoke can then be pushed into the AC vents by the fan. If your AC has stopped working, it could be because the engine overheating is causing the AC compressor to shut off.

2. Faulty EGR Valve: A faulty Exhaust Gas Recirculation (EGR) valve can also cause smoke to come through the vents. The EGR valve is responsible for recirculating a small amount of exhaust gas back into the engine to help reduce emissions. If the valve is faulty, it can allow too much exhaust gas to enter the engine, causing it to smoke. This smoke can then be drawn into the AC vents by the fan.

3. Damaged Heater Core: A damaged heater core could also be the cause of smoke coming through the vents. The heater core is a small radiator that uses engine coolant to heat the air that flows through the AC vents. If the heater core is damaged, it can leak coolant into the air ducts, which can then vaporize and cause smoke.

If you are experiencing smoke coming through the vents of your van and the AC has quit, it's important to have the vehicle inspected by a qualified mechanic to determine the cause of the problem and make any necessary repairs. Driving a vehicle with a blown head gasket or other serious engine problem can be dangerous.

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