Need help! Coolant froze!

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02-05-2011 | 06:00 PM

#16

tjwalker

CF Veteran

Joined: Nov 2010

Posts: 5,817

Likes: 105

From: In the middle of Minnesota!

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by J-leblanc

Yep I melted it out and flushed it bit. Then filled it with fresh coolant. Runs good no damage. I'm very thankful.

And you should be. Not everyone is as lucky as you.

Test your coolant concentrations folks................

A cheap 5 ball hydrometer at a parts store will set you back about $3.00

A better one is about $10.00

Should be in everybody's tool box.

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02-05-2011 | 07:48 PM

#17

JeepCoMJ

CF Veteran

Joined: Nov 2008

Posts: 2,003

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Year: 1987

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by Kmart164

Was just about to say, Laramie, WY got to -42. My coolant froze too. Had 50/50, flushed and filled. Blew my lower radiator hose in half!

Luckily, block, head, core plugs, (they're NOT freeze plugs!! lol) everything was good. Put a 65/35 in there and havent had a problem.

Oh, and if ya'll get the chance, and your heat isn't blowing hot, take your heater core hoses off, and in the outlet hose, (the smaller and lower one), blow it out with shop air.

Had what looked like a nest of leaves come out of mine last night when doin my coolant in school.

they ARE freeze plugs. if they don't function that way, they're old as ***** and corroded in.

OP...if you're lucky, your freeze plugs popped out.

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02-06-2011 | 09:14 AM

#18

Kmart164

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Joined: Dec 2009

Posts: 433

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Model: Cherokee

Core plugs are there from when the blocks are cast. NOT to pop out during a freeze up. That's just a bonus.

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02-06-2011 | 09:24 AM

#19

JeepCoMJ

CF Veteran

Joined: Nov 2008

Posts: 2,003

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Year: 1987

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by Kmart164

Core plugs are there from when the blocks are cast. NOT to pop out during a freeze up. That's just a bonus.

there are 5 freeze plugs on the passenger side of the block, one on the back of the head, one on the back of the block, and they put one more on the back of the block to cap off the cam shaft.

those are all freeze plugs.

that is where they locate block heaters, and freeze plugs pop out real easy.

took two taps of a hammer.

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02-06-2011 | 09:33 AM

#20

dilljeepo

Seasoned Member

Joined: Aug 2010

Posts: 320

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From: Calgary, Alberta

Year: 1996

Model: Cherokee (XJ)

Engine: 4.0L

OP has problem solved. Freeze plugs or not, THREAD is DONE

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02-06-2011 | 09:35 AM

#21

JeepCoMJ

CF Veteran

Joined: Nov 2008

Posts: 2,003

Likes: 4

Year: 1987

Model: Cherokee

Engine: 4.0

thread is done once proper information is given, and improper information is corrected.

lies and improper information do nothing but flood the forum with garbage.

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