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2001 jeep wrangler 2.5 engine problem i think ?

Discussion in 'Off-Topic Discussion' started by weakest, May 31, 2019.

  1. May 31, 2019 at 8:14 PM
    #1
    weakest

    #1
    weakest [OP] New Member

    Joined:
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    First Name:
    jacob
    Vehicle:
    2001 jeep wrangler 2.5l
    cold air intake
    i have a 2001 jeep wrangler 2.5 liter with a hopping idle the and yesterday it was high @ 2 RPM and today it was back below 1 RPM but it would drop to the point where the engine almost cut off i dont know what the problem is i checked the spark plugs and i looked at the throttle position switch and it was clean i pulled off the cold air intake i installed and had a very dark oil residue in it i think its blow by but i have never seen it before and the engine oil is still clear and new i dont know what to do and its my daily so any help would be appreciated
     
    weakest, May 31, 2019
    #1
  2. Jun 1, 2019 at 5:27 AM
    #2
    Awrench

    #2
    Awrench Well-Known Member

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    SUGGESTIONS -
    1) HAVE THE JEEP SCANNED, many auto part stores will scan for FREE - yes you scan even if light is OFF.
    2) Next checking oil in intake tubing. Check CCV and hoses for vacuum.
    3) Remove oil fill cap - with engine running do you feel blow by coming out fill hole? Describe - wet dry weak
    4) knowing these answers we can proceed.

    do you have the jeep air cleaner assembly still?
    comfort level - skilled, DIYer, where does the gas nozzle go?

    SWAG - that oil issue has gummed up the IAC, POS fresh air assy is problematic adding to issue - codes will help.
     
    Awrench, Jun 1, 2019
    #2
    aggrex likes this.
  3. Jun 1, 2019 at 5:56 AM
    #3
    aggrex

    #3
    aggrex Well-Known Member

    Joined:
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    DE
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    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Welcome @weakest ....the online diagnosis has zeroed in on the target. Remove the CAI as suggested.
     
    aggrex, Jun 1, 2019
    #3
  4. Jun 2, 2019 at 5:41 AM
    #4
    weakest

    #4
    weakest [OP] New Member

    Joined:
    May 31, 2019
    Member:
    #3304
    Messages:
    2
    Gender:
    Male
    First Name:
    jacob
    Vehicle:
    2001 jeep wrangler 2.5l
    cold air intake
    CCV valve has vacuum pressure and the last time i looked up the code i had a small evap leak and damp and weak out of the fill hole but very minimal dampness PO123 generic throttle/pedal position sensor a circuit high input
     
    Last edited: Jun 2, 2019
    weakest, Jun 2, 2019
    #4
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