1999 GMC Savana 1500 Q&A

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

can some one help with this -
Answer 1
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 -
Comment 1
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! -