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oil cooler

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Chuy772, Aug 6, 2012.

Page 1 of 3
  1. Aug 6, 2012 #1
    Chuy772

    Chuy772 Bobtail Member

    13
    0
    Jul 31, 2012
    Indianapolis,IN
    0
    Hi everyone,
    I have a 3406e Cat in a Pete 379. I have oil coming out of the radiator over flow! I just replaces the oil cooler. Could I have replaced it with another bad oil cooler? What other possibilities could be causing this to happen. My oil temp rises very fast and the oil psi is running around 50 to 60 when I am running down the road at 70. Should I replace the oil cooler again?
     
    Chuy772, Aug 6, 2012
    Chuy772, Aug 6, 2012
    #1
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  3. Aug 6, 2012 #2
    PROSTREET80

    PROSTREET80 Light Load Member

    75
    13
    Jul 11, 2012
    northwest AR
    0
    did you flush the coolant system really good when you replaced the oil cooler. I don't know of to many other things that could cause this problem unless the block has a crack in the oil system somwhere into the coolant system but its not likely .
     
    PROSTREET80, Aug 6, 2012
    PROSTREET80, Aug 6, 2012
    #2
  4. Aug 6, 2012 #3
    Shaggy76

    Shaggy76 Heavy Load Member

    831
    307
    Feb 22, 2012
    Orlando, FL
    0
    Did you burping the air from the coolant system? You might have air trapped in there.
     
    Shaggy76, Aug 6, 2012
    Shaggy76, Aug 6, 2012
    #3
  5. Aug 6, 2012 #4
    Heavyd

    Heavyd Road Train Member

    7,816
    6,271
    Feb 4, 2009
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    Like the other guys said, oil in the coolant is hard to clean out after a repair like that and may take a few flushes to get all of it. Flush your cooling system with a good detergent and keep an eye on it.
     
    Heavyd, Aug 6, 2012
    Heavyd, Aug 6, 2012
    #4
  7. Aug 6, 2012 #5
    Chuy772

    Chuy772 Bobtail Member

    13
    0
    Jul 31, 2012
    Indianapolis,IN
    0
    I ran about 12 gallons of water through it after I put the new oil cooler on. Then I ran it for about an hour to make sure there wasn't oil in the top of the reservior. I made my first trip with it to Lafayette IN from Whitestown and by the time I got up there it was pushing alot of oil out again. This is why I think that I got a bad oil cooler. But another guy told me that it might be a cracked sleeve. I know that the truck has not gotten hot so how could that happen? Should I take it back off and go have it pressure tested to make sure that is it?
     
    Chuy772, Aug 6, 2012
    Chuy772, Aug 6, 2012
    #5
  8. Aug 6, 2012 #6
    Superhauler

    Superhauler TEACHER OF MEN

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    a cracked sleeve wont put oil in the water it would be the other way around. was it a new oil cooler? or another used one that you put on. could it be fuel in the rad if so an injector cup is leaking or cracked.
     
    Superhauler, Aug 6, 2012
    Superhauler, Aug 6, 2012
    #6
  9. Aug 6, 2012 #7
    kat man

    kat man Light Load Member

    234
    195
    Nov 29, 2009
    orleans in
    0
    Are you low on oil now.
     
    kat man, Aug 6, 2012
    kat man, Aug 6, 2012
    #7
  10. Aug 6, 2012 #8
    Chuy772

    Chuy772 Bobtail Member

    13
    0
    Jul 31, 2012
    Indianapolis,IN
    0
    I am about a gallon low on oil now.. I never really thought about the cups. I had those replaced about 2 years ago. That is when I had straight fuel coming out of the radiator.
     
    Chuy772, Aug 6, 2012
    Chuy772, Aug 6, 2012
    #8
  11. Aug 6, 2012 #9
    Chuy772

    Chuy772 Bobtail Member

    13
    0
    Jul 31, 2012
    Indianapolis,IN
    0
    The oil cooler was a reman from young and sons here in Indianapolis
     
    Chuy772, Aug 6, 2012
    Chuy772, Aug 6, 2012
    #9
  12. Aug 6, 2012 #10
    Superhauler

    Superhauler TEACHER OF MEN

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    a cat reman or a reman from an outside vendor?
     
    Superhauler, Aug 6, 2012
    Superhauler, Aug 6, 2012
    #10
    PeterLiner Thanks this.
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