Internal coolant leak jeep 5.9 - JeepForum.com

 
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post #1 of 2 Old 02-19-2013, 01:41 PM Thread Starter
SpenceAK
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1995 ZJ 
 
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Internal coolant leak jeep 5.9

Ok so coolants been contaminating my oil where the two are mixing I haven't determined yet. Found this issue when trying to fix a oil pressure drop when engine is warm I replaced pump and pickup which did not help so changing the oil and adding thicker oil (20W50) which did not help pressure still dropped but noticed oil very cloudy and extremely thin. I pressure tested coolant system and test determined internal coolant leak. So my question is are these separate issues like the low oil pressure being cam bearings and I happen to have a blown head gasket, cracked head.... or the coolant and oil mixing causing the pressure drop as engine warms up?

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post #2 of 2 Old 02-19-2013, 04:56 PM
ratmonkey
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continuing to run a vehicle with contaminated oil will wear out the main and rod bearings. leading to low oil pressure and eventual engine failure.
you probably have a blown head gasket or cracked head.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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