Help with my coolant

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Jan 9, 2018 | 05:51 PM

Trevsm01

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Model: Cherokee(XJ)

Help with my coolant

So I have a 1991 Cherokee Lerado. I have changed the head gasket and some other stuff to get it started and then coolant started shooting out of the exhaust pipe and I haven’t been able to figure it out. The engine runs fine but it, of course, over heats. I changed the water pump and that didn’t do much. Every time I put more water into the radiator it just pipes out of the back end. Anyone have any idea at all?

Jan 9, 2018 | 06:20 PM

RocketMouse

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Joined: Nov 2017

Posts: 2,478

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From: Southern Texas (former AZ & Aus)

Year: 1999

Model: Cherokee(XJ)

Engine: I6 4.0L

And having water/coolant in the exhaust is the only place you have coolant where it's not supposed to be? ie... no mixing with your oil, etc.
Are you sure you got the head gasket seated correctly? I'm wondering if you're not getting it seeping across from a coolant channel from the block and head due to a poor seal and gets right into the cylinder, and blown out the back.
Others may chime in, but that's what comes to mind first.
Also... are you sure that the head itself that you installed back on was not warped at all? Not likely, but if that were the case, you'd probably be more likely to also be getting some coolant into your oil as well.
And do you have the I6 4.0?

Jan 9, 2018 | 07:10 PM

Trevsm01

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Yes I have the four-point no but if all of that coolant was getting into one of the cylinders wouldn’t it sound and act like it is miss firing? It runs perfectly fine.

Jan 9, 2018 | 07:11 PM

Trevsm01

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Other than over heating

Jan 9, 2018 | 07:33 PM

5-Speed

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From: SoCal

Year: 1987

Model: Cherokee (XJ)

Engine: 4.0

Are you sure its coolant coming out of the exhaust and not the typical condensation that tends to shoot out?

Jan 9, 2018 | 08:11 PM

Turbo X_J

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From: ☼ Blackhole Sun

Year: My Jeep is a GMC

Quote:

Originally Posted by Trevsm01

changed the head gasket

Why?

Jan 9, 2018 | 08:16 PM

firebane

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Joined: Dec 2017

Posts: 622

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From: Calgary, AB

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 5.2

Quote:

Originally Posted by Trevsm01

When you did the HG did you check to see if it was warped? Mine was .007 thou on the head and .004 on the deck.

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Jan 9, 2018 | 08:34 PM

Caish

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From: Arkansas

Year: 1987 & 1996

Model: Cherokee

Engine: 4.0

Cracked or warped head.

Jan 10, 2018 | 07:11 PM

Trevsm01

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Model: Cherokee(XJ)

I know that it is coolant because if I filled the radiator and then started the engine the coolant would shoot out the exhaust pipe like a garden hose but more powerful.

Jan 10, 2018 | 07:12 PM

#10

Trevsm01

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if it was warped it would have to be a visibly significant warp because of how much water is coming out

Jan 10, 2018 | 07:15 PM

#11

Trevsm01

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I did the HG because when I bought it the guy said thats what it needed because the coolant was just fogging out the back end. before I did the HG I didn't try to start the engine
Everything is torqued down too

Jan 10, 2018 | 07:29 PM

#12

Turbo X_J

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From: ☼ Blackhole Sun

Year: My Jeep is a GMC

Quote:

Originally Posted by Trevsm01

I suspect the dude lied, the head and/or block is probably cracked.

Last edited by Turbo X_J; Jan 10, 2018 at 07:41 PM.

Jan 11, 2018 | 04:20 PM

#13

Trevsm01

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well he had done a HG but he said he may have screwed up the install. he said that it was a new refurbished head

Jan 11, 2018 | 04:40 PM

#14

firebane

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From: Calgary, AB

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 5.2

Quote:

Originally Posted by Trevsm01

well he had done a HG but he said he may have screwed up the install. he said that it was a new refurbished head

Between what your saying and what he told you I would be ripping into the head to find out truly what is going on.

Too much this and that to feel easy.