Question about 2005 Pontiac Sunfire

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Does a 2005 Pontiac Sunfire have a PCV valve?

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Crankcase Ventilation System Description
A crankcase ventilation system is used to consume crankcase vapors in the combustion process instead of venting them to atmosphere. Fresh air from the intake system is supplied to the crankcase, mixed with blow by gases and then passed through a calibrated orifice into the intake manifold.
The primary control is through the positive crankcase ventilation (PCV) orifice which meters the flow at a rate depending on inlet vacuum. The PCV orifice is an integral part of the camshaft cover. If abnormal operating conditions occur, the system is designed to allow excessive amounts of blow by gases to back flow through the crankcase vent into the intake system to be consumed by normal combustion.

Posted on Dec 19, 2016

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Posted on Jan 02, 2017

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1 Answer

Location of pvc valve on a Pontiac sunfire 2.2 4cyl 2005


It's not a PCV valve like back in the day . It's a fix orifice in the valve cover . Where the breather hose hooks to the valve cover . You would need to take the valve cover off an clean the orifice with carb clean or brake clean .

Feb 12, 2017 | 2005 Pontiac Sunfire

1 Answer

PCV valve location


There's no PCV valve on these engines. The crank ventilation is built into the valve cover.

Nov 19, 2013 | Pontiac Sunfire Cars & Trucks

1 Answer

2003 Sunfire PCV Valve


It seals into a rubber grommet in the valve cover

Nov 19, 2013 | Pontiac Sunfire Cars & Trucks

1 Answer

How to flush radiator on 2005 pontiac sunfire and put antifreeze


Open drain valve on radiator & remove the
fill cap,the same as has been done for a
hundred years.

Dec 22, 2012 | 2005 Pontiac Sunfire

3 Answers

2003 sunfire using oil - oil in air box by throttle body - where is pcv valve located


Check and or replace your PCV valve. also make sure the oil level is not overfilled.and your airfilter is not dirty/plugged

Aug 26, 2012 | Pontiac Sunfire Cars & Trucks

1 Answer

Am I to understand the pcv is located under the valve cover on a 2003 sunfire?


No the pcv is on the intake manifold the hose that is on the valve cover is just a hose and nipple the PCV is on the intake

Mar 06, 2012 | 2003 Pontiac Sunfire

5 Answers

Is the pcv valve replaceable in the 2001 Sunfire 2.2L engine or is it built in to the valve cover


Yes the PCV can be replaced. It seals into a rubber grommet in the valve cover. See pitcure of valve below.


emissionwiz_232.jpg

Sep 23, 2011 | 2001 Pontiac Sunfire

2 Answers

Build pressure up in crankcase whats wrong


Clogged crank case vent valve. They are less than $10.00 and easy to replace.

Thanks for your question

Jan 30, 2011 | 2004 Pontiac Sunfire

1 Answer

Pcv valve location on 1997 pontiac sunfire, 2.4 liter


the positive cranckase ventilation is going to be on the valve cover. usually has a rubber hose about 5/8 coning off it and running to the intake.

Apr 03, 2010 | 1997 Pontiac Sunfire

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