Question about 2003 Jeep Grand Cherokee

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How do you change the oil pump in a 2003 Jeep Grand Cherokee Limited/Loredo 8cylander 4.7. ? We can't seem to find any diagrams that point us in the right direction. Thanks in advance for your gracious help. Tom and Felissa, Nokesville, VA

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  • Jeep Master
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You can generally find the info you are looking for in most inexpensive manuals such as chilton or haynes, available at most larger parts stores. Be aware though that most low oil pressure conditions are not caused by the pump, but by worn main or rod bearings that allow pressure bleed off.
Sometimes it's caused by hard carbon residue stuck to the pump pickup. Either way, you need to remove the engine oil pan to check those things. When checking bearings, always re-torque them to proper specs or you will induce a failure even if there was no problem there..

Posted on Mar 17, 2011

  • fleasure0603 Mar 17, 2011

    Thank you for your time! We appreciate you.

    Warmly,
    Felissa and Tom

  • Richard Scordino Mar 18, 2011

    Glad to help! Just wondering though, why you didn't rate my answer??

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