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leaks under the engine: help to diagnose 200

posted by  someone claiming to be jwalker on  Wed May 28 06:01 CST 2025 [RELATED]

If your engine has one, the flame trap is on top of the engine near the intake manifold. Another pollution control part “the breather box” can also leak if clogged. A hose connects the flame trap to the breather box.

If the oil pressure switch is leaking (a minor leak) it will drip down near the oil filter. It screws into the block. Easy fix!

Rear main seal leaks usually show up where the transmission bolts up to the engine. My 90 240 had a slow RMS leak which never required replacement. Thank God! No one wants to pull a transmission just to replace a RMS seal.






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