2004 Cadillac Seville Logo
Eric Knight Posted on Feb 25, 2016
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Locate pcv valve.pulled throtle body nothing or valve covers

Pcv valve.not in valve covers not behind throttle body.

  • David Ellis Rhea Feb 25, 2016

    Hi Eric Knight, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? Ask a Cadillac dealer parts or service.

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Arnie Burke

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  • Cadillac Master 7,339 Answers
  • Posted on Feb 29, 2016
Arnie Burke
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Bringit to a partstore...rhey know anycar made

Jeff Armer

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  • Cadillac Master 15,575 Answers
  • Posted on Feb 25, 2016
Jeff Armer
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Crankcase ventilation system is used to consume crankcase vapors created during the combustion process instead of venting them to the atmosphere.
Fresh air is supplied through a filter to the crankcase, the crankcase mixes the fresh air with the blow-by gases and then passed through a positive crankcase ventilation (PCV) orificed tube into the intake manifold.
The PCV orificed tube restricts the flow rate of the blow-by gases using a 3 mm (0.118 in) (a) orifice located at the end of the tube. If abnormal operating conditions arise, the system is designed to allow excessive amounts of blow-by gases to back flow through the crankcase vent tube into the throttle body in order to be consumed by normal combustion. Positive Crankcase Ventilation Hose/Pipe/Tube Replacement
Remove the two nuts (2) from the fuel injector sight shield (1).
Lift the sight shield (1) from the front and pull forward to disengage the rear tab from the bracket.
Disconnect the PCV fresh air tube from the left camshaft cover.
Remove the PCV fresh air tube from the throttle body.
Remove the drive belt. Refer to Drive Belt Replacement .
Remove the power steering pump retaining bolt.
With the hoses still attached, Carefully position aside the power steering pump.
Remove the retaining clip securing the PCV dirty air tube.
Disconnect the PCV dirty air tube from the PCV orificed tube.
Remove the PCV dirty air tube from the intake manifold.

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