Where is the PCV valve located and how do you check and replace it for Chevrolet Avalanche,Silverado,Suburban,Tahoe and GMC Sierra,Yukon,Yukon Denali,Yukon XL?

The PCV valve is located in the left valve cover. Pull the valve (with hose attached) from the rubber grommet in the cover while engine idle normal operating temperature. Put your finger over the valve opening. Check for a plugged hose, manifold port, or the valve itself if there's no vacuum at the valve. Replace any plugged or deteriorated hoses. Turn off the engine and shake it to check for rattling sounds from PCV valve. Replace it with a new one if it does not rattle. To replace pull out the one end of hose and note its seated position. When purchasing a replacement PCV valve, make sure it's for your particular vehicle and engine size. Compare the old valve with the new one to make sure they're the same. Push until seated into hole in end of hose . Inspect grommet for damage and hardening; replace as needed. Push securely into place pcv valve and line.

Genuine GMC Sierra PCV Valve

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10 PCV Valves found

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GMC Sierra Valve Asm,Pcv
Part Number: 19303069
- Other Name: VALVE, Engine Crankcase; PCV Valve
- Replaces: 06487532, 6487532
$3.47 MSRP: $6.54
You Save: $3.07 (47%)

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Fits the following Vehicles:
2005-2007 GMC Sierra | 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 137.0
1999-2002 GMC Sierra | 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L
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GMC Sierra Valve Assembly, Crankcase Depression Regulator
Part Number: 12650860
- Other Name: VALVE, Engine Crankcase
- Replaces: 12643247
$78.64 MSRP: $148.38
You Save: $69.74 (48%)

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Fits the following Vehicles:
2012-2016 GMC Sierra | 1 TON CREW CAB, 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 6.6L Diesel
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GMC Sierra Valve Assembly, Crankcase Depression Regulator
Part Number: 12642205
- Other Name: VALVE, Engine Crankcase
- Replaces: 12633286
$24.65 MSRP: $46.50
You Save: $21.85 (47%)

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Fits the following Vehicles:
2011 GMC Sierra | 1 TON CREW CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 6.6L Diesel
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GMC Sierra Valve Assembly, Pcv
Part Number: 12630887
- Other Name: VALVE, Engine Crankcase; PCV Valve
- Replaced by: 12691877
$8.39 MSRP: $15.26
You Save: $6.87 (46%)

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Fits the following Vehicles:
2014-2021 GMC Sierra | 1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON, CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L
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GMC Sierra Valve Assembly, Pcv
Part Number: 12705103
- Other Name: PCV Valve
- Replaced by: 12721582
$11.73 MSRP: $21.04
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2019-2021 GMC Sierra | CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 4 Cyl 2.7L
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GMC Sierra Valve Assembly, Pcv
Part Number: 12691880
- Other Name: PCV Valve
- Replaces: 12631624
$7.60 MSRP: $15.78
You Save: $8.18 (52%)

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Fits the following Vehicles:
2014-2019 GMC Sierra | 1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON | 8 Cyl 5.3L, 8 Cyl 6.2L
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GMC Sierra Valve,Crankcase Vent Breather
Part Number: 97222874
- Other Name: VALVE, Engine Crankcase
$12.27 MSRP: $19.30
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Fits the following Vehicles:
2004-2005 GMC Sierra | 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB | 8 Cyl 6.6L Diesel
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GMC Sierra Fitting,Pcv
Part Number: 12572717
- Other Name: VALVE, Engine Crankcase; PCV Valve
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2002-2003 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB | 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L
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GMC Sierra Valve,Pcv
Part Number: 25179136
- Other Name: VALVE, Engine Crankcase; PCV Valve
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Fits the following Vehicles:
1999-2002 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB | 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L
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GMC Sierra Valve,Pcv
Part Number: 97302067
- Other Name: VALVE, Engine Crankcase; PCV Valve
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Fits the following Vehicles:
2002-2004 GMC Sierra | 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB | 8 Cyl 6.6L Diesel
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GMC Sierra PCV Valve Parts Questions & Answers

Valve Assembly, Crankcase Depression Regulator
12650860
Q: Where is the PCV valve located and how do you check and replace it for Chevrolet Avalanche,Silverado,Suburban,Tahoe and GMC Sierra,Yukon,Yukon Denali,Yukon XL?
A: The PCV valve is located in the left valve cover. Pull the valve (with hose attached) from the rubber grommet in the cover while engine idle normal operating temperature. Put your finger over the valve opening. Check for a plugged hose, manifold port, or the valve itself if there's no vacuum at the valve. Replace any plugged or deteriorated hoses. Turn off the engine and shake it to check for rattling sounds from PCV valve. Replace it with a new one if it does not rattle. To replace pull out the one end of hose and note its seated position. When purchasing a replacement PCV valve, make sure it's for your particular vehicle and engine size. Compare the old valve with the new one to make sure they're the same. Push until seated into hole in end of hose . Inspect grommet for damage and hardening; replace as needed. Push securely into place pcv valve and line.