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2006 grand cherokee limited 4.7 liter. 8th cylinder misfire.

Discussion in 'Grand Cherokee' started by lwlambert, Jul 27, 2018.

  1. Jul 27, 2018 at 9:59 PM
    #1
    lwlambert

    #1
    lwlambert [OP] Member

    Joined:
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    First Name:
    larry
    Vehicle:
    2006 grand cherrokee 4.7 liter limited
    Codes PO 300, PO308, PO113, PO068. I replaced the 8th cylinder coil pack and plug but still misfire prroblem. When in park and I gun it there is misfire flooding or something going on. HELP
     
    lwlambert, Jul 27, 2018
    #1
  2. Jul 28, 2018 at 6:53 AM
    #2
    Awrench

    #2
    Awrench Well-Known Member

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    do you have a scanner*? want to look at data... try to pin down p0300, ECT. fuel trims, vacuum, o2 voltages, TPS,

    did you look at
    P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION - VACUUM LEAK ?
    P0113-INTAKE AIR TEMPERATURE SENSOR CIRCUIT HIGH - UNPLUGGED?

    For p0308 SWAP THE INJECTOR - did code change?


    * a scanner is advised to see ALL codes.
     
    Awrench, Jul 28, 2018
    #2
    aggrex likes this.
  3. Jul 28, 2018 at 9:40 AM
    #3
    lwlambert

    #3
    lwlambert [OP] Member

    Joined:
    Jul 24, 2018
    Member:
    #2455
    Messages:
    7
    Gender:
    Male
    First Name:
    larry
    Vehicle:
    2006 grand cherrokee 4.7 liter limited
    thanks. you are the second guy to suggest that. am going to try that today.
     
    lwlambert, Jul 28, 2018
    #3
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