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Oil Pressure Senor Replacement
 
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Pelican Technical Article:

Oil Pressure Senor Replacement

Steve Vernon

Time:

1 hour1 hr

Tab:

$40 to $50

Talent:

**

Tools:

17mm wrench

Applicable Models:

BMW E10 2002 Coupe/Conv (1967-76)
BMW E21 320i Coupe (1977-83)

Parts Required:

Sensor

Hot Tip:

Hand threat the sensor to start

Performance Gain:

Proper pressure sensing

Complementary Modification:

Oil and filter change.

If your oil pressure gauge is starting to act up or has quit working completely there is a very good chance that your oil pressure sensor is starting to go or has gone bad. Changing the sensor out is not difficult at all and a great way to DIY and save a little money. The sensor can easily and quickly be changed on a 2002 with a minimum of fuss and mess.

The oil pressure sensor is located on the right side of the motor on the rear of the head (red arrow).
Figure 1

The oil pressure sensor is located on the right side of the motor on the rear of the head (red arrow). Due to its location and height you can change it out without losing any oil or causing any mess. Just make sure the motor is not running. We are working on the Clarion Build's BMW 2002 and we changed ours out without a drop of oil hitting this beautiful motor.

The sensor has two wiring connections (yellow arrow) and sits in a block on the rear of the head (red arrow).
Figure 2

The sensor has two wiring connections (yellow arrow) and sits in a block on the rear of the head (red arrow).

Our wires were color-coded.
Figure 3

Our wires were color-coded. If you wires are not color-coded, make sure to label which wire goes where. Unscrew the caps and remove the wiring connections and small washers.

Use a 19mm wrench and unscrew the sensor from the block (red arrow).
Figure 4

Use a 19mm wrench and unscrew the sensor from the block (red arrow).

This sensor had Teflon tape on the threads (red arrow); this is not necessary.
Figure 5

This sensor had Teflon tape on the threads (red arrow); this is not necessary.

The sensor has two separate poles so make sure when you are installing that you connect the wires on the correct poles.
Figure 6

The sensor has two separate poles so make sure when you are installing that you connect the wires on the correct poles. When installing the sensor always hand thread it in until you are sure it is threading correctly. Then you only need to snug it down with the wrench. Start the car and check for leaks, and you are done.


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Page last updated: Sun 5/28/2017 03:06:23 AM