How would you locate a coolant leak that shows no obvious drips, using pressure testing or dye methods?

How would you locate a coolant leak that shows no obvious drips, using pressure testing or dye methods?

• A. Use a pressure test to pressurize the system and watch for leaks; use UV/fluorescent dye and a UV light to trace dye leaks; inspect all gaskets, hoses, radiator, water pump, and heater core.
• B. Visually inspect hoses only and use no pressure test.
• C. Pour dye into coolant and wait to see color change.
• D. Drive the vehicle until dye leaks appear in puddles.

Answer: (B)