Mechanics

LEXUS LS 400 COOLANT PROBLEM

1990 Lexus LS 400 • 180,000 miles

Coolant is leaking from somewhere behind the beauty covers that shroud my pulleys, ( crank pully, water pump pully. Etc.). But there isn't any water leaks on the top side of my motor.( Hoses are fine. Thermastat isn't leaking. Etc.) Could this be my water pump? It doesn't leak right away. Only when the coolant cap is on. And its warmed up. I take the coolant cap off. And it quits?
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Guest
February 23, 2013.



Probably is a water pump leak, the engine covers will have to be removed and the system pressure tested to find out for sure.

Mhpautos
Feb 23, 2013.