93 4.0L with foam in radiator - JeepForum.com

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post #1 of 7 Old 02-15-2012, 05:35 AM Thread Starter
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93 4.0L with foam in radiator

Hey all first post and I could really use some advice. I noticed yesterday my engine wasnt getting hot and I got no heat. When I got into work this morning I touch the radiator cold, engine not strangely warm, checked the radiator and It was full of foam? And oil was clean at the dipstick. I let it sit a bit while I hit the internet looking for answers. Now I just went to check the head gasket. I noticed the foam had turned back to coolant when I opened up the radiator. Started the engine and got some bubbles and then the foam. FML
I got a could of questions

Does this sound like it could be anything else beside the head gasket?

anyone happen to know what am I looking at for cost to fix the head gasket vs replace the engine?

Any good shops between Canton MA and Somerville MA (boston area)?

Any good junk yards between Canton MA and Somerville MA (boston area)?

can I drive it home today without making the problem much worse?

What would you do in my shoes??

Thanks in advance for the help all.

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post #2 of 7 Old 02-15-2012, 06:01 AM
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If you're engine is running cold and you have no heat it sounds like you need to replace your thermostat. Was the foam oily or just foam? I say get a thermostat, flush the cooling system, refill and let it run. Then check for leaks and see if the heat works.

If you're running into the same issue report back.


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post #3 of 7 Old 02-15-2012, 06:12 AM
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Sounds to me like you should check for other leaks first before jumping to the expensive stuff. Fill it up with collant too it sounds like it is really low. You may want to check the water pump as well. All that is free or cheap to check compared to 5 or 6 hundred to have a head gasket done or a few grand for a new engine. Just take a breath and start with simple and free and work your way up. But first fill it up with coolant all the way. Then start these test.

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post #4 of 7 Old 02-15-2012, 06:17 AM Thread Starter
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Thanks for the advice Lou and siva it would def make my day if this isnt a head gasket. The foam is very clean ie not brown-ish in the slightest so thats a plus.
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post #5 of 7 Old 02-15-2012, 06:34 AM
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You can only hope it is just a head gasket and not a cracked head or block. But has was said try add coolant first. Then check it for bubbles and if you have bubbles with the engine running smell what is coming out. If it smell like exhaust then you have to look farther to find where the problem is.

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post #6 of 7 Old 02-17-2012, 10:52 AM
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Any news about this?

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post #7 of 7 Old 02-21-2012, 04:26 AM Thread Starter
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Thermostat failed open.
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