Blown motor? Blown head gasket?
Member
Joined: Apr 2015
Posts: 107
Likes: 2
From: Morenci, AZ
Year: 2000
Model: Cherokee
Engine: 4.0
You said that you changed the water pump recently. Was the impeller intact? There is usually a lot of electrolytic slimes in the system when a component has degraded.
Believe it or not, slimes is the technical term for the sediment left over in an electrolytic cell (just pointless trivia).
Believe it or not, slimes is the technical term for the sediment left over in an electrolytic cell (just pointless trivia).
Last edited by El_Guapo; May 17, 2015 at 09:56 PM.
Thread Starter
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
You said that you changed the water pump recently. Was the impeller intact? There is usually a lot of electrolytic slimes in the system when a component has degraded.
Believe it or not, slimes is the technical term for the sediment left over in an electrolytic cell (just pointless trivia).
Believe it or not, slimes is the technical term for the sediment left over in an electrolytic cell (just pointless trivia).
Member
Joined: Apr 2015
Posts: 107
Likes: 2
From: Morenci, AZ
Year: 2000
Model: Cherokee
Engine: 4.0
Okay - still probably just anode slimes/sedimentation.
Another possibility is previous owner/shop contamination. I've seen some weird things done to vehicle cooling systems over the years. My SJ Cherokee took HOURS (and a new heater core) to flush all the crud from the original owner's habit of putting Bar's Leaks in it regardless of the fact that it didn't leak. The old guy actually told me he put it in twice a year as a PM item, because the bottle said it lubed the water pump!
Another possibility is previous owner/shop contamination. I've seen some weird things done to vehicle cooling systems over the years. My SJ Cherokee took HOURS (and a new heater core) to flush all the crud from the original owner's habit of putting Bar's Leaks in it regardless of the fact that it didn't leak. The old guy actually told me he put it in twice a year as a PM item, because the bottle said it lubed the water pump!
Thread Starter
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Okay - still probably just anode slimes/sedimentation.
Another possibility is previous owner/shop contamination. I've seen some weird things done to vehicle cooling systems over the years. My SJ Cherokee took HOURS (and a new heater core) to flush all the crud from the original owner's habit of putting Bar's Leaks in it regardless of the fact that it didn't leak. The old guy actually told me he put it in twice a year as a PM item, because the bottle said it lubed the water pump!
Another possibility is previous owner/shop contamination. I've seen some weird things done to vehicle cooling systems over the years. My SJ Cherokee took HOURS (and a new heater core) to flush all the crud from the original owner's habit of putting Bar's Leaks in it regardless of the fact that it didn't leak. The old guy actually told me he put it in twice a year as a PM item, because the bottle said it lubed the water pump!
I have all the maintenance records for my Jeep since 34k miles. There was a complete cooling system overhaul including the heater core replacement about 30k ago. Coolant color was fairly green, but the slime inside was like mud.
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