Chevy Oil pressure electrical problem
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Chevy Oil pressure electrical problem

  1. #1
    ... Some Kind Of Monster's Avatar
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    Default Chevy Oil pressure electrical problem

    I know some of you know this truck like the back of your hand so hopefully someone can take the guess work out of what's going on here.

    2004 Chevy 1500 4x4 Silverado

    Originally the oil pressure gauge was pegged but now it goes from being pegged to 0 and back again at randon intervals. It also likes to "ding ding" and tell me the oil pressure is low. The oil pressure is not low (checked it) so this is an electrical issue.

    Is this typically a sender problem? chafed wire? gauge cluster?

    Thanks for any help!

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  3. #2
    mo balls than $cents$ IMPATIENT 1's Avatar
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    with it chime'n like that i wouldnt think it was the cluster itself. the sender sends its signal to the pcm and the pcm sends it along to the ipc(cluster). the chime means what the ipc is getting from the pcm is showing to be too low a pressure. try a sender, bet itll fix ya up. could also be rats ate wires behind the intake near the sender, see'n that alot this time of yr

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  4. #3
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Engine Oil Pressure Gauge
    The instrument panel cluster (IPC) displays the engine oil pressure as determined by the powertrain control module (PCM). The IPC receives a class 2 message from the PCM indicating the engine oil pressure. The engine oil pressure gauge defaults to 0 kPa (0 psi) or below if:

    • The PCM detects a malfunction in the engine oil pressure sensor circuit.

    • The IPC detects a loss of class 2 communications with the PCM.
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    Last edited by IMPATIENT 1; 11-24-2010 at 11:37 AM.

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  5. #4
    ... Some Kind Of Monster's Avatar
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    You're the man! There isn't really a rodent problem here so I'm going to shoot for the sender being the issue. Any quick / easy ways to get at it?

  6. #5
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    My 05 Suburban was showing no oil pressure. Had it towed to the dealer in Claremont and it ended up being a bad sender. I think it was around $400 to change it.

  7. #6
    mo balls than $cents$ IMPATIENT 1's Avatar
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    not really, kinda booger to get at but if you can borrow a oil pressure sender socket its a breeze. you may be able to get some channel locks on the base and pop it loose, once its broke loose it'll jus finger on out, they have alil compression washer that seals em up.

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  8. #7
    Senior Member Mr. C's Avatar
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    If it's not the sender and is the cluster F@#* harness. double check with your dealer. My wifes 03 yukon went out (even though it was out of warranty) we had less than 100k miles on it and they replaced-no charge.

    Good Luck
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  9. #8
    ... Some Kind Of Monster's Avatar
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    It was the sender. I had to do the whole job by feel as the sender is hard to get at. Deep well socket, swivel, and a couple extensions and the job is done. I can now see my oil pressure again. Thanks for the help!!

  10. #9
    Senior Member Hullshot's Avatar
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    same thing on my 05, chime, 0 oil pressure, 15 minutes and a new sender and its done.

  11. #10
    Ralphs club member LSXINDUSTRIES's Avatar
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    If u need a sender, I have about 100 sitting in my garage PM me and ill ship ya one
    “I am on a drug. It’s called Charlie Sheen. It’s not available because if you try it, you will die. Your face will melt off, and your children will weep over your exploded body.”



  12. #11
    '74 Sanger ski hydro the General's Avatar
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    I'm having the same issue with my '06 Duramax (LLY). Think it'd be the sending unit?

  13. #12
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by the General View Post
    I'm having the same issue with my '06 Duramax (LLY). Think it'd be the sending unit?
    generally dmax's with oil pressure reading issues turn out to be clusters, the sender on a dmax is a isuzu part, hardly ever go bad

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    Quote Originally Posted by the General View Post
    I'm having the same issue with my '06 Duramax (LLY). Think it'd be the sending unit?
    i have seen it once, 04 dmax lb7, failed oil pump

  15. #14
    Member fastlife's Avatar
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    Replacing a dmax right now because I thought it was the sender or cluster. So dont assume and let it go like I did. Turns out all those crankcases full of diesel due to bad injectors took its toll on the bearings.

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