Oil Pressure - Fluctuating, dangerously - Experts please - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-21-2007, 05:10 PM   #31
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Plot thickens

Autotap today picked up two codes.

The first one I saw once when I picked the car up from getting the trans rebuilt.
Figured it had to do with trashing the trans...

P0705 - Transmission Range Sensor Malfunction (PRNDL Input)
P0706 - Transmission Range Sensor Circuit Range/Performance

Interesting to note, that typically knock counts only occur when the TCC Slip is at or near 0%...

How these may or may not relate to my other issues, I don't know.


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Old 02-21-2007, 05:49 PM   #32
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might be a bit off course here, but i had the abnormally high pressure readings last winter. normal pressure at idle, somewhere around 120psi at highway speeds. new pressure sending unit cleared that right up.

and yes, the oil level switch is for the "Low Oil" light on the DIC
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