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1999 GMC Savana 1500 Question: just change oil sending unit check gauge still showing low oil pressure

 

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rodstubbs0001, Pittsburgh, PA, March 11, 2013, 05:49
 Rookie

can some one help with this

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  • Answer #1

    Greg's Orange Auto (12947 Answers) , Orange, CA - (714) 361-9386
    globalhelper March 11, 2013, 06:02
     Master

    do a manual oil pressure test with gauge. try grounding your sending unit wire at sender if gauge goes all they way up you may have oil pump issues

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    pushrod, March 11, 2013, 20:34
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     Master

    After you do that test, and you have good pressure on the test gauge, try another (better) sending unit i have seen some aftermarket units that just dont work! Check with GM dealer on sender. May cost more but also worth it!

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