What is the Role of the PCV System in Reducing Hydrocarbon Emissions and How Do You Inspect and Replace PCV Valve Hose on Pontiac G6?

The Positive Crankcase Ventilation (PCV) system is a very important in minimizing hydrocarbon emission by evacuation of crankcase full of unburned hydrocarbon fumes. On a four cylinders the system comprises a single crankcase ventilation hose that sucks in crankcase vapors through the vent housing installed on the under part of the valve cover and then channeling the vapors into the air intake duct before entering the combustion chambers. For V6 models, there is a fixed orifice on the front valve cover; two hoses control the air fresh and crankcase vapor with regard to intake manifold vacuum. Deterioration of PCV system is not good for the engine; therefore, one should check the hoses for the crack or any obstruction and to clean or replace as the case may be. Approxations of both of these problems may include a rough idle as well as stalling, or the presence of oil leaks, and in interpretation of a leakage sign, there may be rough running or high idle speed. A functional check on V6 models involves a removal of the end of PCV hose, the starting of the engine and checking for vacuum. In case of a higher crankcase pressure that is above the expected limit then it is advised to be checked by an expert. In cases of heavy sludge or oil dilution, more tests are required. In case of component exchange, it requires removal of hoses and conditioning or replacement of vent housing, fixed orifice, however, vent housing is molded in the valve cover and cannot be replaced independently.

Genuine Pontiac PCV Valve Hose

Positive Crankcase Ventilation Valve Hose

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117 PCV Valve Hoses found

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Part Number: 12602539
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- Other Name: TUBE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- Torrent | 2007-2009 | GT SUV AWD, GT SUV FWD, SUV AWD, SUV FWD | 6 Cyl 3.4L
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Part Number: 12594592
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation; PCV Valve
Fits the following Pontiac Models:
- G6 | 2007-2010 | GT 2 DOOR CONVERTIBLE, GT 2 DOOR NOTCHBACK, GT 4 DOOR NOTCHBACK, GTP 2 DOOR NOTCHBACK, GXP 2 DOOR NOTCHBACK, GXP 4 DOOR NOTCHBACK, SE 4 DOOR NOTCHBACK, SE1 2 DOOR NOTCHBACK, SE1 4 DOOR NOTCHBACK | 6 Cyl 3.5L, 6 Cyl 3.5L Flex, 6 Cyl 3.9L
- Montana | 2007-2009 | CROSSOVER SPORT VAN, CROSSOVER SPORT VAN EXTENDED | 6 Cyl 3.9L, 6 Cyl 3.9L Flex
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Part Number: 12598160
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- Torrent | 2007-2009 | GT SUV AWD, GT SUV FWD, SUV AWD, SUV FWD | 6 Cyl 3.4L
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Part Number: 12624774
$12.88 MSRP: $24.30
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- G8 | 2008-2009 | 4 DOOR SEDAN, G-8 | 8 Cyl 6.0L
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Part Number: 12613199
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation; PCV Valve
- Replaces: 12595962
Fits the following Pontiac Models:
- G6 | 2007-2009 | GTP 2 DOOR NOTCHBACK, GXP 2 DOOR NOTCHBACK, GXP 4 DOOR NOTCHBACK | 6 Cyl 3.6L
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Part Number: 12581194
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation; PCV Tube
Fits the following Pontiac Models:
- G6 | 2005-2006 | GT 2 DOOR CONVERTIBLE, GT 2 DOOR NOTCHBACK, GT 4 DOOR NOTCHBACK, GTP 2 DOOR CONVERTIBL, GTP 2 DOOR NOTCHBACK, SE 4 DOOR NOTCHBACK, SE1 4 DOOR NOTCHBACK | 6 Cyl 3.5L
- Montana | 2005-2006 | CROSSOVER SPORT VAN, CROSSOVER SPORT VAN EXTENDED | 6 Cyl 3.5L
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Part Number: 12594779
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- GTO | 2004-2006 | GTO | 8 Cyl 5.7L, 8 Cyl 6.0L
- Grand Prix | 2007-2008 | 4 DOOR, GT 4 DOOR, GXP 4 DOOR | 8 Cyl 5.3L
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- G8 | 2009 | 4 DOOR SEDAN | 8 Cyl 6.0L
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Part Number: 12590670
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation; PCV Valve
Fits the following Pontiac Models:
- G6 | 2006-2010 | GT 2 DOOR CONVERTIBLE, GT 2 DOOR NOTCHBACK, GT 4 DOOR NOTCHBACK, GTP 2 DOOR CONVERTIBL, GTP 2 DOOR NOTCHBACK, GXP 2 DOOR NOTCHBACK, GXP 4 DOOR NOTCHBACK, SE 4 DOOR NOTCHBACK, SE1 2 DOOR NOTCHBACK, SE1 4 DOOR NOTCHBACK | 6 Cyl 3.5L, 6 Cyl 3.5L Flex, 6 Cyl 3.9L
- Montana | 2006-2009 | CROSSOVER SPORT VAN, CROSSOVER SPORT VAN EXTENDED | 6 Cyl 3.9L, 6 Cyl 3.9L Flex
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Part Number: 12616914
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
- Replaces: 12595462
Fits the following Pontiac Models:
- G6 | 2007-2009 | GTP 2 DOOR NOTCHBACK, GXP 2 DOOR NOTCHBACK, GXP 4 DOOR NOTCHBACK | 6 Cyl 3.6L
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Pontiac Hose Assembly, Crankcase Vent
Part Number: 10118694
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Product Specifications
- Other Name: HOSE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- 6000 | 1988-1991 | 4 DOOR, LE 4 DOOR, LE STATION WAGON, SE 4 DOOR, SE STATION WAGON, STATION WAGON, STE 4 DOOR | 6 Cyl 3.1L
- Grand Prix | 1990-1993 | 2 DOOR, 4 DOOR, GT 2 DOOR, LE 2 DOOR, LE 4 DOOR, SE 2 DOOR, SE 4 DOOR, STE 4 DOOR | 6 Cyl 3.1L
- Sunbird | 1991-1994 | 2 DOOR, 4 DOOR, CONVERTIBLE, GT 2 DOOR, LE 2 DOOR, LE 4 DOOR, LE CONVERTIBLE, SE 2 DOOR | 6 Cyl 3.1L
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- Other Name: PIPE, Engine Crankcase Ventilation; PCV Hose, PCV Valve
Fits the following Pontiac Models:
- G3 | 2009-2010 | 4 DOOR HATCHBACK, 4 DOOR NOTCHBACK/SEDAN, BASE 4 DOOR HATCHBACK, BASE 4 DOOR NOTCHBACK/SEDAN, MID LEVEL 4 DOOR HATCHBACK, MID LEVEL 4 DOOR NOTCHBACK, UP LEVEL 4 DOOR HATCHBACK, UP LEVEL 4 DOOR NOTCHBACK | 4 Cyl 1.6L
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- Other Name: TUBE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- G8 | 2008-2009 | 4 DOOR SEDAN, G-8 | 6 Cyl 3.6L
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Product Specifications
- Other Name: HOSE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- Grand Am | 1992-1993 | GT 2 DOOR, GT 4 DOOR, SE 2 DOOR, SE 4 DOOR | 6 Cyl 3.3L
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Part Number: 10220271
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- Other Name: HOSE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- Grand Prix | 1993 | 2 DOOR, 4 DOOR, GT 2 DOOR, LE 4 DOOR, SE 2 DOOR, SE 4 DOOR, STE 4 DOOR | 6 Cyl 3.4L
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- G6 | 2005-2006 | GT 2 DOOR CONVERTIBLE, GT 2 DOOR NOTCHBACK, GT 4 DOOR NOTCHBACK, GTP 2 DOOR CONVERTIBL, GTP 2 DOOR NOTCHBACK, SE 4 DOOR NOTCHBACK, SE1 4 DOOR NOTCHBACK | 6 Cyl 3.5L
- Montana | 2005-2006 | CROSSOVER SPORT VAN, CROSSOVER SPORT VAN EXTENDED | 6 Cyl 3.5L
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Part Number: 12617908
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Product Specifications
- Other Name: HOSE, Engine Crankcase Ventilation; PCV Hose, PCV Valve
Fits the following Pontiac Models:
- G6 | 2008-2010 | GT 2 DOOR CONVERTIBLE, GT 2 DOOR NOTCHBACK, GT 4 DOOR NOTCHBACK, GTP 2 DOOR NOTCHBACK, GXP 2 DOOR NOTCHBACK, GXP 4 DOOR NOTCHBACK, SE 4 DOOR NOTCHBACK, SE1 2 DOOR NOTCHBACK, SE1 4 DOOR NOTCHBACK | 4 Cyl 2.4L
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Product Specifications
- Other Name: PCV Hose
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Fits the following Pontiac Models:
- G3 | 2010 | 4 DOOR HATCHBACK, 4 DOOR NOTCHBACK/SEDAN, BASE 4 DOOR HATCHBACK, BASE 4 DOOR NOTCHBACK/SEDAN, MID LEVEL 4 DOOR HATCHBACK, MID LEVEL 4 DOOR NOTCHBACK, UP LEVEL 4 DOOR HATCHBACK, UP LEVEL 4 DOOR NOTCHBACK | 4 Cyl 1.6L
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Part Number: 10118681
Product Specifications
- Other Name: HOSE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- 6000 | 1987-1991 | 2 DOOR, 4 DOOR, LE 4 DOOR, LE STATION WAGON, SE 4 DOOR, SE STATION WAGON, STATION WAGON, STE 4 DOOR | 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.1L
- Grand Prix | 1988-1990 | 2 DOOR, 4 DOOR, LE 2 DOOR, SE 2 DOOR, STE 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.1L
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Part Number: 12616912
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Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
Fits the following Pontiac Models:
- Torrent | 2008-2009 | GT SUV AWD, GT SUV FWD, SUV AWD, SUV FWD | 6 Cyl 3.6L

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Pontiac PCV Valve Hose

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Pontiac PCV Valve Hose Parts Questions & Experts Answers

Hose, Pcv
12643296
Q: What is the Role of the PCV System in Reducing Hydrocarbon Emissions and How Do You Inspect and Replace PCV Valve Hose on Pontiac G6?
A: The Positive Crankcase Ventilation (PCV) system is a very important in minimizing hydrocarbon emission by evacuation of crankcase full of unburned hydrocarbon fumes. On a four cylinders the system comprises a single crankcase ventilation hose that sucks in crankcase vapors through the vent housing installed on the under part of the valve cover and then channeling the vapors into the air intake duct before entering the combustion chambers. For V6 models, there is a fixed orifice on the front valve cover; two hoses control the air fresh and crankcase vapor with regard to intake manifold vacuum. Deterioration of PCV system is not good for the engine; therefore, one should check the hoses for the crack or any obstruction and to clean or replace as the case may be. Approxations of both of these problems may include a rough idle as well as stalling, or the presence of oil leaks, and in interpretation of a leakage sign, there may be rough running or high idle speed. A functional check on V6 models involves a removal of the end of PCV hose, the starting of the engine and checking for vacuum. In case of a higher crankcase pressure that is above the expected limit then it is advised to be checked by an expert. In cases of heavy sludge or oil dilution, more tests are required. In case of component exchange, it requires removal of hoses and conditioning or replacement of vent housing, fixed orifice, however, vent housing is molded in the valve cover and cannot be replaced independently.