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by beartownjp on December 28th, 2006

beartownjp

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'89 Silverado K2500 4x4 has low or no oil pressure showing on gauge - just had oil change and replaced oil pressure sensor - what can I check next? truck has 199,xxx miles and runs great, no fluid leaks are apparent. Thanks!

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Answers. 4 helpful answers below.

  • by first2finish on January 31st, 2007

    first2finish

    The question do you have oil pressure or a bad interior gage???

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  • by Dog_Star on December 28th, 2006

    Dog_Star

    Did you change the oil filter when you changed the Oil, this is a must do,if you did, it looks your Oil Pump has failed, given the age of your vehicle this is highly likely,its not an expensive job,its just about the messiest job you can do on your truck, but straight forward enough, you can buy Oil Pump kits from any good Autostore.
    If you do upgrade to a High output pump,it will be like a new heart for your motor.
    Last and most important, make sure that it is a genuine Chevy made in USA oil pump, the cheaper imports actually have a better finish, but its just gloss, the material used is not up to the task.
    Don't mean to waffle on but I have used chevy powered vehicles in the Tropics and upgraded the pumps to high output,these were predominantly small block engines and we never had mechanical engine failures due to oil problems.

    Hope this is of help

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  • by drake2454 on July 26th, 2007

    drake2454

    I just had the same thing happen to my 1993 tahoe 350 4wd a couple days ago...Its your oil pump.

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  • by ----------- on December 28th, 2006

    -----------

    Don't mention it

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