2000 Ford Explorer Burning Antifreeze

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JEFFS
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  • 1 POST
I have a 2000 Ford Explorer XLS with 61,000 miles on it. 4 ltr, V6. The last couple of times I've had it in for an oil change they've had to add antifreeze. Today it was half a gallon. They couldn't find any leaks anywhere and suggested it could be a head gasket or cylinder going bad. The heater doesn't seem to be leaking (no fogging, or interior leaks or smell). There is no antifreeze in the oil. I'm not noticing any unusual smell, and the truck doesn't run hot, and I'm not seeing excessive steam in the exhaust. They're telling me to keep an eye on the antifreeze level for now. Just wondering if there could be any other causes for this? If not, how long can it last as is?
May 23, 2006 at 6:01 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
You are leaking coolant into the combustion chamber. It is either a bad head gasket, a cracked or warped head.

It is NOT a good sign and should be fixed asap or you will suffer engine damage. Water isn't compressable and can and will damge engine components.

Good luck
May 23, 2006 at 6:50 AM
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LARRYHE
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How often do you have it in for oil change?
May 24, 2006 at 5:54 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
An oil change has nothing to do with it. The oil should be changed when the cylinder head is removed and the leak repaired.
May 24, 2006 at 6:58 AM
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Suggested Repair

Have the engine inspected promptly for coolant entering the combustion chamber from a failed head gasket or a cracked or warped cylinder head, and repair it before engine damage occurs. Change the oil when the cylinder head is removed for the repair.

Conversation Summary

The owner of a 2000 Ford Explorer with a 4.0L V6 reports repeated coolant loss without visible external leaks, coolant in the oil, overheating, heater leaks, or excessive exhaust steam. A shop suggested a head gasket or cylinder problem. The expert says coolant is leaking into the combustion chamber from a bad head gasket or a cracked or warped head and should be repaired immediately to prevent engine damage. Oil-change frequency is unrelated, though the oil should be changed when the head is repaired.

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