2004-2007 Cadillac CTS-V General Discussion Discussion, Oil Pressure Sensor Sender Failure in Cadillac CTS-V Series Forum - 2004 - 2007; My sensor/sender failed at about 78K miles. Have learned that this sensor/sender is an electronic bit that has had some ...
My sensor/sender failed at about 78K miles. Have learned that this sensor/sender is an electronic bit that has had some failure problems. Perhaps the following will be helpful: In my case failure was noted when oil pressure rose and stuck at 130 psi. I verified that this was not my true oil pressure by simply turning off the motor, allowing the oil pressure to drop to zero. Then I just turned the ignition on without motor running. Oil pressure should have shown as "0", but it immediately climbed back to 100+psi. without the motor running. I was on a long trip so I continued to monitor the gauge. When I got home, I changed oil, and then the gauge read "0" for a while before returning to 130 psi once again.
The part number for the sensor/sender is 12616646. GM sells this for about $75. GMPD price, including shipping, was a bit over $50.
The sensor/sender is easily replaced. It is located on the horizontal surface of the "V" of the block at the rear of the intake manifold on the driver's side. R&R requires a deep-socket about 1 1/16" or so.
I also just had mine replaced at 70k. However mine was reading 0 under hard acceleration. Turns out the oil pan gasket was leaking, and oil was wicking into one of the connectors for the oil pressure sending unit. Dealer replaced the oil pan gasket, oil pressure sending unit, and the connector for the unit to cure the problem.
Automobile(s): 06 Black CTS-V, 05 R1, 07 LTZ Avalanche
Re: Oil Pressure Sensor Sender Failure
this started happening to my 06.The DTC read 130 upon startup, under exceleration would drop to 0 and climb back slowly... Did the checks, hit the autozone, $47 dollars later (needed the socket) and 15 minutes problem was gone. Back to reading 30 at idle... This forum rocks... Thanks guys!!!!!
Thanks , There seemed to be some misleading info out there on some auto parts sites, Heres what I figured out and you confirmed it as well.
-oil pressure sending unit located on drivers side top rear of engine
-oil temperature sending unit located on drivers side oil pan
-oil level sensor located on passenger side oil pan