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Small oil leak

Discussion in '1st Gen. Tacomas (1995-2004)' started by Oldman71, May 1, 2021.

  1. May 1, 2021 at 8:11 PM
    #1
    Oldman71

    Oldman71 [OP] New Member

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    2004 Black Taco TRD
    Any suggestions on where to look..small oil leak rear of engine..I can see oil on exhaust pipe below exhaust manifold on driver side. Was wondering if it was a common problem with 3.4 & where it could be leaking from. I don’t believe it’s coming from the valve cover.
    ‘04 Taco DC with 124k

    736A12A7-F67B-42CE-8EC0-2F307544C472.jpg
     
  2. May 1, 2021 at 8:35 PM
    #2
    1997tacomav6

    1997tacomav6 V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 780k

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    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 780,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Photo?
    It’s usually the valve cover gaskets,
    Or possibly the front diff vent valve
     
    Oldman71[OP] likes this.
  3. May 1, 2021 at 8:40 PM
    #3
    SLAPS 65

    SLAPS 65 Dirty deeds, done dirt cheap..

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    I’d bet its the rear cam plug.
     
    Oldman71[OP] and 1997tacomav6 like this.
  4. May 1, 2021 at 8:42 PM
    #4
    Oldman71

    Oldman71 [OP] New Member

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    Thanks for the reply.
     
  5. May 1, 2021 at 8:47 PM
    #5
    1997tacomav6

    1997tacomav6 V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 780k

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    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 780,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Cam plugs or half moons if it’s not the valve covers
    These are done with the valve covers gaskets

    CFD98CD4-46A6-42A9-BB52-70F316BAE687.jpg
     
    Last edited: May 1, 2021
  6. May 1, 2021 at 9:00 PM
    #6
    Oldman71

    Oldman71 [OP] New Member

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    Thanks for the replies..you’ve given me a good starting point. Is it common for the cam plugs to go bad at 124k?
     
    1997tacomav6 likes this.
  7. May 1, 2021 at 9:01 PM
    #7
    1997tacomav6

    1997tacomav6 V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 780k

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    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 780,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Yes and no, but remember those gaskets are 20 years old so yes,

    Get a mirror and look behind there, it will be obvious or your hands to see if you can feel oil there
     
    Oldman71[QUOTED][OP] likes this.
  8. May 1, 2021 at 9:58 PM
    #8
    Nessal

    Nessal Well-Known Member

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    This is kind of common. I have a leak as well and mine is at the cam plugs. I'm redoing it all and you need quite a few things to do it correctly.

    1 X Toyota FIPG Sealant 00295-00103
    4 X Halfmoons 11183-62010 (I think it is 4 but it might be 2. I haven't looked closely to see.)
    2 X Cam Plugs 11188-62010
    2 X Intake Plenum Gaskets 17176-62040
    1 X Throttle body gasket 22271-62050
    2 X Valve cover gasket 11213-62020
    6 X Spark Plug tube seals 11193-70010
    16 X Valve cover washer seals 90210-05007

    Oh yeah, and while you are in there you might as well do your wires, spark plugs, and PCV valve and rubber grommet.
     
    Last edited: May 1, 2021
    skeezix, unstpible and Oldman71[OP] like this.
  9. May 2, 2021 at 5:48 AM
    #9
    1997tacomav6

    1997tacomav6 V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 780k

    Joined:
    Oct 5, 2013
    Member:
    #113940
    Messages:
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    Gender:
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    First Name:
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    Denver
    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 780,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    If you have a 3.4 motor this is a very common repair that you WILL have to address sooner or later.
    I’ve had to do mine 3 times in 660,000 miles in 24 years
    Read through this link and you will know what your up against.

    It’s not a hard job, just time consuming,
    1st timer might take 6 hours going slow. Maybe 2 or 3 hours if you know what your doing and have all the parts and no hiccups.
    Cleaning everything is time consuming
    But there are a few things to be aware of if you do the job,
    1) if the plastic wire harness starts to break apart, probably will use tesa tape to
    wrap it and keep it together
    2) torque numbers, valve covers are in inch pounds NOT FOOT
    3) getting half moons out without damage, pulling straight out, if you wiggle back and forth will break the lip on them
    4) taking photos so you remember how all the hoses line up
    5)getting ALL the old gasket material off the heads and valve covers,
    6) use a dremel, wire wheel a the hand wand to get down in the joints.
    https://www.tacomaworld.com/threads/valve-cover-gasket-replacement-3-4-v6-tips.301900/
     
    Last edited: May 2, 2021

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