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P1189 Diagnostic Trouble Code Discussion for April 2009

Engine Oil Pressure Switch Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1189
Help Request Posted
2001 Pontiac Montana 3.4L No Start, Cuts out VIN: 1GMDX03E71
P1189: Engine Oil Pressure Switch Circuit Malfunction. this vehicle will tend to stall and not restart when hot intermitantly. sometimes we can leave it run for 3 hours and it's fine, next time just start it up and after a bit of driving it stalls. during which there is no spark. has fuel pressure. there are the 3...
April 29, 2009