On 20 May 98 I posted an e-mail on "Engine, 92 Pontiac Grand Am, Mechanical, Oil Pressure, 2.3 Quad 4 SOHC, Vin 3" and an update on 21 May 98 and a fix (supposedly) on 31 May 98. This "tech tip" is a must-read for ALL QUAD 4 TECHNICIANS. Our problem was after ... Login to read more.