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2.7L valve cover scorching?

Discussion in '1st Gen. Tacomas (1995-2004)' started by 03 Mountain goat, Apr 14, 2019.

?

Should i switch to Synthetic Oil?

  1. No

  2. Yes

Results are only viewable after voting.
  1. Apr 14, 2019 at 9:57 AM
    #1
    03 Mountain goat

    03 Mountain goat [OP] Well-Known Member

    Joined:
    Jul 22, 2018
    Member:
    #260129
    Messages:
    55
    Gender:
    Male
    First Name:
    Hunter
    Vehicle:
    03 Tacoma 4cyl 5spd 2.7L 4WD
    2 inch leveling kit, AAL rear, 3” body lift
    So I’ve been wanting to do a little work on my 03 (it’s been misfiring/rough idle). Pulled the valve cover, 5 of them broke at the head, my plan is to double nut the thread and remove it if everything goes well. Any other suggestions? Also, 3 of the 4 coil packs had cracks throughout them, I do live in Maine so it could be from heat stress. My main concern is the valve cover and spark plug tube around cylinder four. Seams to be a bunch of build up. I’ve cleaned it with purple power and replacing all the gaskets and seals on valve cover. Has anyone seen this before? Should I switch to synthetic to clean it up? Truck has 240K miles with castrol gt-x 10w-30 running through it. All the pictures relating to the problems mentioned above are here below. 9A863457-631F-4264-9A7B-74363BD4F97F.jpg E2D38F42-31D6-4428-8B4F-D709FAEA3C87.jpg5A380495-3A37-43F1-B389-793E679BF789.jpg A6733E7B-0C9C-442A-92D0-CFA4D64B8DEA.jpg
     
  2. Apr 14, 2019 at 3:18 PM
    #2
    cruxofthebisquit

    cruxofthebisquit Well-Known Member

    Joined:
    Jun 26, 2009
    Member:
    #18936
    Messages:
    4,705
    Gender:
    Male
    First Name:
    John
    Orange Texas
    Vehicle:
    2000 TRD
    OME and worth every penny.
    OK, laughs.
     

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