Site Sponsors & Vendors
Results 1 to 6 of 6

Thread: PIP4158C: Low Oil Pressure

  1. #1
    Beyond Help WickedMom's Avatar
    Join Date
    Mar 2009
    Location
    SoCAL
    Posts
    6,524
    Post Thanks / Like

    Default PIP4158C: Low Oil Pressure

    PIP4158C: Low Oil Pressure Due To Seized Oil Pressure Relief Valve - (Dec 29, 2009)


    Subject: Low Oil Pump Pressure due to Seized Oil Pressure Relief Valve

    Models: 2008-2009 Buick Lacrosse, Allure (Canada Only)
    2007-2010 Cadillac CTS-V, Escalade
    2007-2010 Chevrolet Avalanche, Corvette, Silverado, Suburban, Tahoe
    2007-2008 Chevrolet Monte Carlo SS
    2007-2009 Chevrolet Impala SS, Trail Blazer
    2009-2010 Chevrolet Colorado
    2010 Chevrolet Camaro
    2007-2010 GMC Envoy, Sierra, Yukon
    2009-2010 GMC Canyon
    2008-2010 Hummer H2
    2008-2010 H3 Alpha
    2008 Pontiac Grand Prix GXP
    2008-2010 Pontiac G8 GT <~~~LOL @ the typo!
    2007-2009 Saab 97x
    with the Following Aluminum V8 Engine RPOs:
    L76, L77, L92, L94, L99, L9H, LC9, LH6, LH8, LH9, LS2, LS3, LS4, LS7, LS9, LSA, LZ1

    The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
    Condition/Concern:

    Some customers may complain of low oil pressure, no oil pressure, and/or engine noise, which may be the result of a sticking oil pump pressure relief valve. In some instances, this may occur intermittently if the valve frees up when the engine cools down.
    Recommendation/Instructions:

    If SI diagnosis isolates low mechanical oil pressure at the oil filter housing and oil pressure sensor, replace the oil pump, flush the oil cooler lines (if equipped), clean the inside of the oil pan, change the oil and filter, and re-evaluate the concern.

    Notice: If an engine noise is noticed after replacing the oil pump, follow the SI diagnosis and repair the engine as necessary.

    Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

    GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for infor
    **RIP Shaun Finley**
    FUCK CANCER
    **RIP Charlie**

    '16 2SS NFG Camaro M6 NPP Mag
    Procharged, custom 4.5" heat exchanger, custom cam
    LT4 fuel system and top hardware, Stainless Works long tubes
    Weld wheels, Hoosier rear fatties, M&H front skinnies

  2. #2
    Senior Member BluYa76's Avatar
    Join Date
    Feb 2009
    Location
    Manassas, Virginia
    Posts
    478
    Post Thanks / Like

    Default

    Ahhh boy what next . Thanks for posting and I'm glad I've got a gauge to watch my oil pressure with.
    Tim

    2009 PSM GT Fully Loaded
    GM Sirius Connect SIRGM2L - INSTALLED (No more XM!!!)
    Fasterproms Ported Intake Manifold w/LS3 TB
    Camaro Brembo Brakes @ all 4 corners
    Complete GXP Suspension Swap
    GXP Axle-Back Exhaust w/x-pipe
    Hacked Atari 3 Gauge Display
    Superchips Cortex Tuned
    Vararam Ram Air Intake
    OEM Bluetooth Add-on
    BMR Front Swaybar
    HSV Valve Covers
    20" Camaro Rims
    Vector HSRK
    6k HID's

  3. #3
    Beyond Help WickedMom's Avatar
    Join Date
    Mar 2009
    Location
    SoCAL
    Posts
    6,524
    Post Thanks / Like

    Default

    I am posting ALL G8 bulletins, there are quite a few. Most are not specific to only the G8 or the L76. Just because it has a bulletin doesn't mean its a general problem, like this one, it CAN affect any of the vehicles listed above.
    **RIP Shaun Finley**
    FUCK CANCER
    **RIP Charlie**

    '16 2SS NFG Camaro M6 NPP Mag
    Procharged, custom 4.5" heat exchanger, custom cam
    LT4 fuel system and top hardware, Stainless Works long tubes
    Weld wheels, Hoosier rear fatties, M&H front skinnies

  4. #4
    Member
    Join Date
    Mar 2009
    Posts
    87
    Post Thanks / Like

    Default

    THANK YOU for doing this mom !

  5. #5
    Junior Member
    Join Date
    Feb 2011
    Posts
    7
    Post Thanks / Like

    Default

    I have had this on 2 different motors 1st. At 205,000 miles and a new motor with 60,000 miles lost both. No one said anything about this.

  6. #6
    VIP Member STL_G8GT's Avatar
    Join Date
    Jul 2009
    Location
    Estes Park, CO
    Posts
    4,849
    Post Thanks / Like

    Default

    Quote Originally Posted by Mikeg8 View Post
    I have had this on 2 different motors 1st. At 205,000 miles and a new motor with 60,000 miles lost both. No one said anything about this.
    :-(
    2009 PBM G8 GT
    Pat G 218/226, ARP Bits, DSteck/Shane Tuned, Magnacharger Chrome 2300 1:1, RCR Ported/Polished TB, Blower, & L92 Heads w/ LS3 intake valves, Comp Cams Trunion Upgrade Kit, ARH 1 7/8 catted/Magnaflow MidMuff/Solo Axlebacks, RotoFab, VaporWorx PWM 1:1 fuel system, ID850 injectors
    Mike Norris Motorsports Catchcan, AEM 30-4100, JHP Boost/Fuel Gauge Pod
    TSW Nurburgring Matte Gray 18" w/Nitto 555 & 555R, Satin Black SS Brembo Fronts, BMR Trailing Arms, Pedders Sway Bars, Whiteline Bushings
    Gloss Black Valve Covers, 6k HID, V6 Handles, Interior/License Plate LEDs, Debadged, Holden Black Trim, Polk Dxi, GXP diffusor, a few bits from Crazy Paul

    Originally Posted by TonyKarter
    Anyone who has ever worked on a car has been in your position, and sitting cross-legged on a concrete floor with a dim shop light is its own kind of hell... Chalk it up as one of the rites of passage.
    RIP Charlie - GRRRR8
    RIP Chris Wells - Panzer Leader

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •