Question about 1995 Chrysler LHS

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When I start my 95 lhs and let it run for about 3 mins or so coolant will start to come out of the over flow. The coolant is only warm when this happens. I can put my finger in the coolant reservoir right as it is coming out of the over flow. I put the cap back on and shut the engine off and it comes out even more. Can anyone help. Thanks scott

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Sounds like you may have an internal head gasket leak into the combustion chamber and the compression gases are forcing the coolant out the overflow.if it was the thermostat it would take longer than the 3 mins you say before it does this.but compression gases at 150lbs or so in the cooling system takes far less time to cause this overflow and when you turn off the motor the gases are there over a longer period of time,because the cylinder is not going from compression to intake or power stroke as it would if it was running.you can get the cooling system tested for combustion chamber gases.

Posted on Apr 06, 2011

Testimonial: "Thank you so much for that information. I am going to go ahead and replace the head gaskets. Hopefully this will fix the problem. Thank you; Scott"

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