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  1. 03-21-2013, 06:27 PM #1
    twozs
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    black 01 red 73
    01 z28 and 73 z28

    oil pressure went haywire .

    i have 151,00 miles . i pulled down off the highway today and my oil pressure dropped to 5 pounds and when restarted 0 . giving it gas it goes up to 65 and more . i have owned the car from new . is my motor junk ? it has some noise in the lower end but not a hard knock . how do i test the pressure with a mechanical gauge ?
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  2. 03-21-2013, 06:37 PM #2
    pajeff02
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    '02 WS.6 / '07 Suburban

    Getting to the OPSU is not easy -- it is behind the intake manifold on the driver side. Unless you have an oil cooler installed above your filter, that is the only place you can tap in a mechanical test gauge that I know of.
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  3. 03-22-2013, 07:49 AM #3
    SMWS6TA
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    Like Jeff stated it's not the easiest thing to check. I'd just pull the OPSU, it is the most likely culprit.
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  4. 03-22-2013, 08:12 AM #4
    35th-ANV-SS
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    I will add that I wouldn't run the car until you diagnose the problem. Having no oil pressure is a for sure way to destroy the motor quickly.
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  5. 03-22-2013, 08:17 AM #5
    SMWS6TA
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    ^^

    I was coming back to tell him to pull an oil sample to see for any bearing/metal particles.
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  6. 03-22-2013, 02:23 PM #6
    pajeff02
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    OP -- did you pull the dipstick and check the level?
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  7. 03-22-2013, 03:22 PM #7
    twozs
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    black 01 red 73
    01 z28 and 73 z28

    oil level is good and no metal but really bad internal noise . its shot ! this sucks . where do i get a new engine ?
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  8. 03-22-2013, 04:19 PM #8
    98TransAmWs-6
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    eBay, Texas Speed, Vengeance Racing, etc. There are tons of places to get a new engine.
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  9. 03-22-2013, 06:15 PM #9
    pajeff02
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    You can pick up a short block for not a whole lot of $$.
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  10. 03-25-2013, 05:18 PM #10
    cammed goat
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    Used LS1/6 swap or LQ4/9 swap isn't expensive. Especially if you do the swap yourself.
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