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1994 Acura Legend LS engine cooling system

Note: My 2d vehicle is also a 1994 Acura Legend LS.

After on dash temperture gauge shows normal operating temperature and vehicle is driven

for 4 to 5 miles the coolant overflows from

the overflow tank. What is this a symptom of?

If the coolant is boiling over, it is most likely a bad radiator cap.

Hopefully the trouble is just a bad pressure cap but it may also indicate there is a headgasket problem and exhaust gases are getting into the coolant. Having a block check test done will verify that.