Question about 2004 Nissan Sentra
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Posted on Jan 02, 2017
Swirl Control Valve
Swirl control valve consists of actuator and valve. The valve is
installed in the intake manifold, and the actuator is connected to the
rear end of the valve shaft.
The swirl control valve uses a step motor which has four winding
phases. It operates according to the output pulse signal of the ECM.
Two windings are turned ON and OFF in sequence. Each time an
ON pulse is issued, the valve opens or closes. When no change in
the control position is needed, the ECM does not issue the pulse signal.
A certain voltage signal is issued so that the valve remains at
that particular opening.
Posted on Dec 01, 2009
SOURCE: code P1138 in nissan
Code P1138 Swirl Control Valve
The Swirl Control Valve is part of the lower intake manifold... and, yes, this is something you can change out yourself depending upon your skill level.
The part will cost around $270 bucks plus the 2 gaskets which is another 12 bucks. Then the labor to do this repair is around 3.0 to 4.0 hours labor, what ever your area's hourly rate is.
If you have an extended warranty, it is possible this may be covered. Just give me your vin number and I can check for you. If you do not have an extended warranty, then these are the around about costs on the repair for this code.
Hope this help (remember comment and rated this).
Posted on Apr 22, 2010
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