Jump to content
CaddyInfo Cadillac Forum

Low oil pressure warning

Recommended Posts

1997 Eldorado, 83,000 miles. Well maintained, oil light on dash flicker. Digital display, stop engine. Tech changed oil pressure sender at oil filter location. check torque at crank. Replaced oil level sender in oil pan. Fresh synthetic blend oil change. 10/40. checked oil pressure with mechanical gauge, 30lbs cold, 15lbs after idling for 45 minutes. No oil flicker light on dash or digital display. After 2 hours of driving around town oil flicker returned on dash and stop engine display on digital dash. Odd no oil light was displayed during test, with sender removed and mechanical gauge installed. Anyone have any further suggestions?

Link to comment
Share on other sites

First, according to the 1997 FSM you should use 5W-30 or 10W-30, but never 10W-40.

Second, check the oil pressure again now and see what has changed.

One thing that can cause this problem is not enough torque on the front damper wheel. If the oil pressure is less now than when it was tested after driving just two hours, I would look at what was done with the car during the work.

A wrench, jack or lift can damage the oil sending unit. Look at the new sending unit and see if it shows damage, particularly if the oil pressure checks good.

-- Click Here for CaddyInfo page on "How To" Read Your OBD Codes
-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data
-- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC
Yes, I was Jims_97_ETC before I changed cars.

Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...