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1990 Buick Lesabre OIL LIGHT

Tiny
FERBEE SARVIS
  • MEMBER
  • 1990 BUICK LESABRE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 212,000 MILES
MY OIL LIGHT HAS CAME ON (3) TIMES. THE FIRST TIME I CHANGED THE OIL AND IT DID BOT GO OFF SO I CHANGED THE SENDING UNIT AND IT WENT OFF AND ABOUT (3) WEEKS LATER IT CAME BACK ON AND I CHANGED THE SENDING UNIT AGAIN AND IT WENT BACK OFF. ABOUT (3) WEEKS LATER IT CAME BACK ON AND I STOPPED AND CHECKED THE OIL AND WHEN I CRANKED IT BACK UP THE LIGHT WAS OFF AND HAS NOT CAME BACK ON IN A COUPLE OF WEEKS. IT IS STILL DOING FINE AT THE PRESENT. I TALKED WITH A FRIEND AND HE HAS A 89 MODEL OLDS WITH A 3.8 AND HIS IS DOING THE SAME THING AS MY BUICK. I THOUGHT IT MAY BE THE OIL PUMP AND HE DOES TO. ANY SUGGESTIONS.
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Wednesday, December 26th, 2007 AT 7:38 AM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

Have the oil pressure tested with a master gauge, this fits in where the electrical sender mounts. This will give a true indication as to what the oil pressure is doing. When you know that, you can decide on what is the best action to take to rectify your problem.

Mark (mhpautos)
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Wednesday, December 26th, 2007 AT 3:36 PM

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