* Power Steering Pump: Power steering pumps are located near the drive belts and are known to leak fluid which can then burn off, creating smoke. Check the power steering fluid level. Low fluid and/or burning fluid smell strongly indicate this.
* Alternator: Similar to the power steering pump, a failing alternator can leak and burn its internal fluids, producing smoke. Check the alternator's mounting bolts for looseness. Also look for signs of burning or leaking. Alternators that are failing often whine or make unusual noises.
* Water Pump: If the water pump is leaking coolant, especially under pressure, that coolant can come into contact with hot engine components and create steam or smoke. Check your coolant level; a low level, along with the smoke, is a very strong indication of this.
* Oil Leak: Oil leaking onto hot engine parts can also produce smoke. Check your oil level, and look carefully for any oil stains or leaks around the engine.
* Vacuum Leak: While less likely to produce visible smoke, a significant vacuum leak could cause a burning smell, particularly if it's sucking in oil.
What you should NOT do:
* Don't ignore it: Continuing to drive the car risks catastrophic engine damage.
* Don't just add fluids: Addressing the underlying problem is crucial; simply adding fluid is a temporary fix.
What you SHOULD do:
1. Stop driving the car immediately: Park it in a safe location.
2. Let the engine cool down completely: Trying to inspect a hot engine is dangerous.
3. Visually inspect the area: Once cool, carefully examine the area for leaks, burns, or anything unusual. Pay close attention to the power steering pump, alternator, and water pump.
4. Check all fluid levels: Check your engine oil, coolant, and power steering fluid levels. Low levels coupled with smoke are significant indicators.
5. Call a mechanic: This is not a DIY job unless you have extensive automotive experience. A mechanic can properly diagnose and repair the problem.
Ignoring smoke from your engine bay is risky. The problem is likely serious and requires professional attention to prevent further, potentially costly damage.
