Overheats and blows out the overflow on the reservoir

BILLY TURNBULL

MEMBER
1996 CHRYSLER LHS
147,777 MILES

Okay, I replaced the water pump and thermostat. It still overheats and blows out the overflow on the reservoir and it looks like exhaust or something like it is coming from the radiator reservoir as well. I don't know why.

Sunday, October 13th, 2019 AT 2:49 PM

5 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good evening,

Sounds like you have a blown head gasket from the overheating.

https://www.2carpros.com/articles/head-gasket-blown-test

You need to have a leak down test done to perform. That is when they remove the spark plugs and insert shop air into each cylinder one at a time and look for movement in the cooling system.

Roy

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Sunday, October 13th, 2019 AT 3:30 PM

BILLY TURNBULL

MEMBER
4 POSTS

Okay, thank you.

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Monday, October 14th, 2019 AT 11:35 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

You are welcome.

Always glad to help.

Roy

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Monday, October 14th, 2019 AT 11:42 AM

BILLY TURNBULL

MEMBER
4 POSTS

Okay, I'm going to replace the head gaskets on my 1996 3.5 24 valve 6 cylinder. Any advice is greatly needed.

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Wednesday, October 16th, 2019 AT 1:26 PM

ASEMASTER6371

MECHANIC
52,797 POSTS

Okay, do you have engine repair experience? This is a very involved repair.

The heads will have to be sent to a machine shop and pressure tested as well as check to see if they are warped.

You will need a headset with new head bolts.

You will need a timing belt kit, complete with the water pump.

Is this something you can handle?

Roy