News Technical Service Bulletins

Nissan Issue with Valve Timing Control

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Example of the Nissan VCT solenoid.

This bulletin applies to 2016-2017 Nissan Maxima (V6 engine only), 2011-2017 Quest (V6 engine only), 2013 Altima Coupe (V6 engine only), 2013-2017 Altima Sedan (V6 engine only), 2013-2017 Pathfinder (V6 engine only), 2015-2017 Murano , 2017 Armada and 2016-2017 Titan (with V8 gasoline engine only).

If engine oil is leaking from a valve timing control solenoid valve and the valve operates correctly and is not externally damaged, the O-ring may be replaced.

Remove the leaking valve timing control solenoid valve (VTC) from the valve timing cover.

Inspect for debris and visual damage to the body of the VTC solenoid valve that could cause the leak. Clean any debris that is present from the VTC solenoid and the VCT cover surfaces.

If no visual damage is present, remove the O-ring from the base of the VCT solenoid. Be careful not to damage the O-ring’s sealing surfaces.

Verify that the machined O-ring groove is free from debris or contamination.

Cut a 2-inch x 8.5-inch strip of plain printer paper.

Roll the VTC solenoid valve with the sheet of paper. Roll the new O-ring over the paper and into the machined O-ring groove. Rolling the O-ring over the paper eliminates potential O-ring damage as it passes over the solenoid body. Remove the paper strip. The new O-ring is available as P/N 15066-3RC6D.

Apply engine oil to the O-ring and then install the VCT solenoid into the VCT cover.

After removing the original O-ring, inspect the damage of the machined groove. Make sure it’s clean.

To aid in O-ring installation, cut a strip of plain printer paper 2-inch x 8.5-inch.

Tightly roll the paper strip onto the solenoid, leaving the O-ring groove exposed.

Roll the new O-ring over the paper and into the machined O-ring groove. Discard the paper and lube the O-ring with clean engine oil.

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