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Author Topic: V6 crank sensor replacement  (Read 10806 times)

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Fuse 19

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V6 crank sensor replacement
« on: 19 March 2007, 16:28:08 »

Before doing this job it is important to ensure that you have the correct sensor, the easiest way to ensure this is to examine the plug of the connector as there is a version with a square connector and one with rounded ends, don't trust the dealer to get it right!

Its worth noting that it is rarely the sensor that fails, more often its the cable that breaks down due to it being

a) Close to the exhaust manifold
b) Clipped to the hot oil pipes!

Clearly the routing is a design compromise to allow easier power plant fitting on the production line but, it makes replacement harder so the new sensor should be fitted using a more convenient route which avoids the items which cause early life failure as described below.

The business end of the crank sensor can be found at the back of the engine on the passenger side (2-4-6 bank) just below the oil filter. To get to it, jack the passenger side up, support on stands and have a look up from behind the passenger road wheel.

Remove the Torx bolt (T8) and pull the sensor from the engine block.

The connector end of the sensor is located at the rear of the engine and improved access can be gained by removing the wiper arms and scuttle cover.

Disconnect the connector (3 pin, normally in close proximity to the large 8 pin injector connector) which can be found as in the area shown in the photo bleow highlighted in this case by the red box.

Install the new sensor into the block and route the wire across to the passenger side inner wing and secure it to a convenient point with a cable tie, ensure there is some slack to allow for engine movement.

Thread the cable up through the engine bay and across to the main cable tray on the passenger side cylinder bank securing it with cable ties at convenient points.

Connect the sensor into the wiring loom and check the install to make sure the cable is not in contact with any exhaust parts and that there is some slack to allow for engine movement.

You can then cut the ends off the old sensor to tidy the install up as removal is all but impossible.

Re-fit the removed items and jobs a good un....

This FAQ may help when ordering to ensure you get the correct sensor  :
« Last Edit: 15 December 2011, 15:29:25 by Jimbob »
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