oil pressure

1996 JEEP GRAND CHEROKEE
130,000 MILES • 6 CYL • 4WD • AUTOMATIC
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LARRYLETO
  • MEMBER
  • 4 POSTS
1996 jeep 6 cyl oil pressure gauge drops to 0 at idel but resumes 35-40 when you excellerate. Bad pump or sending unit?
Jan 12, 2011 at 4:32 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check the oil pressure with a mechanical gauge,if normal replace the oil pressure switch. If abnormal could mean oil pump and/or engine bearing.
Jan 12, 2011 at 4:36 PM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
Raz has given you the correct way to diagnose the problem but you may find it cheaper and faster just to try another sender. They are cheaper than the labor time to test it mechanically.
Jan 12, 2011 at 4:50 PM
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