Classification: EM09-015
Reference: NTB10-009
Date: January 19, 2010
REMOVAL PROCEDURE FOR SEIZED EXHAUST SENSOR
APPLIED VEHICLES: All Nissan vehicles
SERVICE INFORMATION
If an exhaust sensor is seized in the exhaust manifold/catalyst/front tube, perform the procedure described in this bulletin to remove the sensor and prevent unnecessary replacement of the exhaust manifold/catalyst/front tube.
In most cases this procedure is successful. This is because the threads of the exhaust sensors are made of a softer material than the part they thread into on the exhaust manifold/catalyst/front tube.
NOTE:
The replacement of exhaust manifolds/catalysts/front tubes for stripped exhaust sensor threads may not be considered a warrantable expense.
This procedure can be performed by two methods:
Method #1 - If the Sensor Can Be Easily Accessed
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The procedure can be performed on the vehicle.
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The exhaust manifold/catalyst/front tube will not have to be removed.
Method #2 - If the Sensor Cannot Be Easily Accessed
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The exhaust manifold/catalyst/front tube must be removed from the vehicle.
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The procedure will be performed with the part clamped in a vice.
Method #2 is described in this bulletin. Method #1 is the same as Method #2 except that it is performed on the vehicle.
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