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The Location of the Oil Pan Sensor in a 1990 Mazda MPV

The oil pan or oil level sensor in your Mazda MPV monitors the amount of oil in the oil pan. The sensor has an electrical connection that enables it to communicate with the PCM (power control module). When the oil level reaches or falls beneath the sensor, it illuminates the oil light in your MPVs dash cluster. Damage to the oil level sensor most often results from electrical failure. You can located and replace the oil pan sensor on your 1990 Mazda MPV right at home. The job should take you approximately 30 minutes.

Instructions

1

Place a wheel block firmly into position behind both of your MPVs rear tires.

2

Apply the emergency brake and raise the front end of your vehicle with a hydraulic jack. The bottom of both of the front tires should visibly measure no more than 8 inches from the ground.

3

Set a jack stand behind the front tires underneath your MPVs frame rail. Lift the support arms on both jack stands to 85 percent of the height of the hydraulic jack.

4

Lower the hydraulic jack slowly while you monitor both of the jack stands. When you see that your MPV securely rests on the support arms of the jack stands, stop lowering the hydraulic jack. Do not completely remove or lower the hydraulic jack. Leave it in its position for extra support.

5

Slide under your Mazda MPV and locate its oil pan. The oil pan sits at the lower, rear of the engine. It looks like a black, metal rectangle and has 20 small bolts around its upper lip. The oil pan also has a large bolt at the bottom of it used to drain the oil.

6

Locate the oil pan sensor on the lower side of your oil pan. You will not be able to see the sensors length but you should see the wiring harness connected to the top of it. On some models of the 1990 Mazda MPV, the sensor mounts just above the oil draining bolt. On other models, the sensor mounts on the opposite side of the oil pan across from the oil draining bolt.