GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 2 of 2
  1. #1

    Default Oil pressure/ oil guage problem?

    My oil gauge needle is normally at 38-40 when at normal idol( tach gauge picture is at normal idol) and goes up to 80ish at full rev, but today when I started her the needle only went to like 20-22 ( picture of oil gauge) I thought it might need to just warm up so I've been driving around all day and the gauge still reads 20-22 at idol and when I revved it all the way the needle only went to right above the 3/4 mark on the oil gauge.
    I checked the dipstick and the oil is still gold and is not low.
    Could the gauge be broken? or oil pressure problem? Or something more serious?
    Attached Thumbnails Attached Thumbnails image-1349062076.jpg   image-3039133589.jpg  
    2003 Chevy 1500 5.3l VORTEC

  2. #2
    Legend
    TRPLXL2's Avatar
    Join Date
    Jan 2009
    Location
    Norwalk, Ohio
    Posts
    3,359
    Blog Entries
    8

    Default

    There are only two things that come to mind, bad stepper motor or bad oil pressure sending unit. The sending unit would be mounted low on the engine block, with a 2 wire connector hooked to it. They are relatively inexpensive to get, but they are a pain to get out sometimes. There is a way to check it with an ohms meter, but I forget what the rating should be on it.

Similar Threads

  1. Oil pressure guage bouncing all over
    By jmaxe444 in forum GM Powertrain
    Replies: 2
    Last Post: 02-03-2011, 08:33 PM
  2. Checking oil pressure when guage not working
    By cyberpine in forum Chevy C/K Truck Forum
    Replies: 7
    Last Post: 10-22-2009, 06:25 AM
  3. Oil Pressure Guage
    By crane557 in forum General Chevy & GM Tech Questions
    Replies: 1
    Last Post: 04-28-2009, 09:09 PM
  4. oil pressure guage doing funky chicken?
    By bassalive in forum General Chevy & GM Tech Questions
    Replies: 5
    Last Post: 11-28-2008, 09:56 PM
  5. Oil Pressure Guage bounces
    By SilveradoBrett in forum General Chevy & GM Tech Questions
    Replies: 2
    Last Post: 11-10-2008, 09:43 AM

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
  •