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99 4 runner rough restart after engine warms up

Discussion in '3rd Gen 4Runners (1996-2002)' started by Dad01, Oct 8, 2020.

  1. Oct 8, 2020 at 11:07 AM
    #1
    Dad01

    Dad01 [OP] New Member

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    99 4 runner limited..... Vehicle runs fine from a cold start. Example drove it for 30 minutes turned it off for just a few minutes restarted it,and it runs rough after restart, then throws code cylinder 2 misfire.



    Changed plugs wires and Ignition coils.
     
  2. Oct 8, 2020 at 11:37 AM
    #2
    negusm

    negusm New Member

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    Could be a lot of things. Fuel starvation (fuel pump. injectors).

    Can even be bad crank thrust bearing. I just watched Timmy The Toolman's Epic adventure on Youtube to find his friend Greg's misfire. They did a ton of things over many videos and it wound up being crankshaft play was really really bad.

    I would try swapping the fuel injectors around first.
     
  3. Oct 8, 2020 at 11:57 AM
    #3
    Dad01

    Dad01 [OP] New Member

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    I will try swapping the injectors. The fuel pump is fairly new.
     
  4. Oct 10, 2020 at 10:20 AM
    #4
    Dad01

    Dad01 [OP] New Member

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    It was a bad fuel injector.
     
  5. Oct 11, 2020 at 7:58 AM
    #5
    negusm

    negusm New Member

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    Nice! Thanks for reporting back!
     

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