1990 Buick Lesabre OIL LIGHT

1990 BUICK LESABRE
212,000 MILES • 6 CYL • 4WD • AUTOMATIC
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FERBEE SARVIS
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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.
Dec 26, 2007 at 7:38 AM
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MHPAUTOS
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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)
Dec 26, 2007 at 3:36 PM