1. Welcome to Jeeps.net!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Jeep discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Jeep owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Overheating Grand Cherokee 4.7

Discussion in 'Grand Cherokee' started by Jmstackett, Jun 14, 2017.

  1. Jun 14, 2017 at 3:32 AM
    #1
    Jmstackett

    #1
    Jmstackett [OP] Member

    Joined:
    Jun 12, 2017
    Member:
    #1547
    Messages:
    6
    Gender:
    Male
    Vehicle:
    04 cherokee 4.7 special ed
    If my power steering pump goes out will that cause my jeep to overheat, I am new to owning a jeep and have replaced the water pump, thermostat, pressure checked the system, flushed system but my power steering pump runs through my fan so would that be making my Grand Cherokee overheat if it was out?
     
    Jmstackett, Jun 14, 2017
    #1
  2. Jun 14, 2017 at 7:05 PM
    #2
    chris4x4

    #2
    chris4x4 With sufficient thrust, pigs fly just fine Moderator

    Joined:
    Jul 19, 2016
    Member:
    #2
    Messages:
    4,068
    Gender:
    Male
    Welcome! Not sure what youre asking. The 4.7 can have 1 or 2 fans, one being electric, and on the tow package. Do you have 1 or 2?
     
    chris4x4, Jun 14, 2017
    #2
  3. Jun 14, 2017 at 7:35 PM
    #3
    Jmstackett

    #3
    Jmstackett [OP] Member

    Joined:
    Jun 12, 2017
    Member:
    #1547
    Messages:
    6
    Gender:
    Male
    Vehicle:
    04 cherokee 4.7 special ed
    Only 1 fan, No it is not electric it is a hydro fan that is powered by the power steering pump, I was asking if the power steering pump goes out would it cause the fan to stop working and overheat the vehicle
     
    Jmstackett, Jun 14, 2017
    #3
  4. Jun 14, 2017 at 8:02 PM
    #4
    OFFGRID

    #4
    OFFGRID Well-Known Member

    Joined:
    Oct 3, 2016
    Member:
    #317
    Messages:
    2,018
    Gender:
    Male
    First Name:
    Peter
    Houston
    Vehicle:
    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Wow that's cool. Haha. I've never seen one of those, but your right they do make them as an option for your jeep. I would say yes if your power steering pump were to go out your would lose fan power. I believe you would notice a wining and difficulty turning before the pump went completely dead.
     
    OFFGRID, Jun 14, 2017
    #4
    JKBob 25 and chris4x4 like this.
  5. Jun 14, 2017 at 8:51 PM
    #5
    OFFGRID

    #5
    OFFGRID Well-Known Member

    Joined:
    Oct 3, 2016
    Member:
    #317
    Messages:
    2,018
    Gender:
    Male
    First Name:
    Peter
    Houston
    Vehicle:
    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Sounds like you are having overheating issues. You've done everything I would do. Only thing left is the radiator. They build up corrosion inside. Flushing them won't get it. You have it cored or buy a new one. A new one is usually cheaper than coring one.
     
    OFFGRID, Jun 14, 2017
    #5
    JKBob 25 likes this.
  6. Jun 15, 2017 at 3:54 AM
    #6
    Jmstackett

    #6
    Jmstackett [OP] Member

    Joined:
    Jun 12, 2017
    Member:
    #1547
    Messages:
    6
    Gender:
    Male
    Vehicle:
    04 cherokee 4.7 special ed
    Didn't do much pump must have went out because I threw Lucas stop leak in to see of it would help, well it started whining after that lol, power steering pp should be in this week will update after its in! Thanks for the input have been racking my mind all week!
     
    Jmstackett, Jun 15, 2017
    #6
  7. Jun 15, 2017 at 2:52 PM
    #7
    Jmstackett

    #7
    Jmstackett [OP] Member

    Joined:
    Jun 12, 2017
    Member:
    #1547
    Messages:
    6
    Gender:
    Male
    Vehicle:
    04 cherokee 4.7 special ed
    Alright so I pulled oil cap and found some yellow gunk thinking head gasket blew but if it did wouldn't all the oil be a milky color?
     
    Jmstackett, Jun 15, 2017
    #7
  8. Jun 15, 2017 at 6:55 PM
    #8
    OFFGRID

    #8
    OFFGRID Well-Known Member

    Joined:
    Oct 3, 2016
    Member:
    #317
    Messages:
    2,018
    Gender:
    Male
    First Name:
    Peter
    Houston
    Vehicle:
    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    I would think that if water was getting into your oil that it would be milky when you drained it yes.
     
    OFFGRID, Jun 15, 2017
    #8
    JKBob 25 likes this.
  9. Jun 15, 2017 at 7:26 PM
    #9
    JKBob 25

    #9
    JKBob 25 Well-Known Member

    Joined:
    Mar 22, 2017
    Member:
    #1197
    Messages:
    3,874
    Gender:
    Male
    First Name:
    Bob
    Jersey Shore, NJ
    Vehicle:
    2016 JK Wrangler Sport
    And try to stay away from any type of stop leak. It will cause more cooling issues and other problems you don't want. Not to mention. It's just a bandaid. And bandaids fall off.
     
    JKBob 25, Jun 15, 2017
    #9
  10. Jun 16, 2017 at 2:05 AM
    #10
    Jmstackett

    #10
    Jmstackett [OP] Member

    Joined:
    Jun 12, 2017
    Member:
    #1547
    Messages:
    6
    Gender:
    Male
    Vehicle:
    04 cherokee 4.7 special ed
    This is what I found in top of oil fill but drained oil and it all looked good, very weird and have never seen anything like this before.

    20170615_172956.jpg
     
    Last edited: Jun 16, 2017
    Jmstackett, Jun 16, 2017
    #10
  11. Jun 16, 2017 at 9:38 AM
    #11
    chris4x4

    #11
    chris4x4 With sufficient thrust, pigs fly just fine Moderator

    Joined:
    Jul 19, 2016
    Member:
    #2
    Messages:
    4,068
    Gender:
    Male
    Looks like build up from a bunch of small, short trips.
     
    chris4x4, Jun 16, 2017
    #11
  12. Jun 17, 2017 at 2:11 PM
    #12
    Jmstackett

    #12
    Jmstackett [OP] Member

    Joined:
    Jun 12, 2017
    Member:
    #1547
    Messages:
    6
    Gender:
    Male
    Vehicle:
    04 cherokee 4.7 special ed
    Like what moisture build up or what I'm confused...but I did get power steering pump in today, redrained all fluids and head lines from radiator jeep is no longer over heating and seems okay we will see!!!
     
    Jmstackett, Jun 17, 2017
    #12
  13. Jun 17, 2017 at 9:51 PM
    #13
    chris4x4

    #13
    chris4x4 With sufficient thrust, pigs fly just fine Moderator

    Joined:
    Jul 19, 2016
    Member:
    #2
    Messages:
    4,068
    Gender:
    Male
    A by product of combustion is water. This water vapor can mix with the oil, and form a "paste" in the filler tube and cap, like what you posted, if you drive many small trips. If you drive many short trips, this doesn't allow for your engine to spend enough time at operating temp, burning this off. If you drive a lot of short little drives, drive for 30 mins or longer once a month. That will help prevent the build up of that stuff in the cap.
     
    chris4x4, Jun 17, 2017
    #13
Register FREE to Reply!
To Top