How to Replace the PCV Valve and Hoses on Cadillac Escalade?

The Positive Crankcase Ventilation (PCV) system reduces hydrocarbon emissions by scavenging crankcase vapors and burning them along with the air-fuel mixture. It utilizes a PCV orifice for 6.0L models or a PCV valve for non-6.0L models, which are threaded into either the rear of the left valve cover for 4.3L V6 or below the throttle body in the intake manifold for 5.3L and 6.2L V8 engines. The system includes two hoses: the fresh air inlet hose carries outside air from the air intake duct to a pipe on the right valve cover, mixing with blow-by gases and crankcase vapors in the crankcase. These vapors are drawn through the orifice or valve, then into the intake manifold to mix with incoming air. For replacement, note that the procedure does not apply to 6.0L VB models, as the orifice is part of the driver's-side valve cover and is not serviceable separately; if clogged, the valve cover must be removed for cleaning. For 4.3L V6 models, the driver's-side engine cover should be removed, and for 5.3L and 6.2L V8 engines, the intake air duct must be taken off. Disconnect the hose from the PCV valve and use a socket to unscrew the valve from the engine, then reverse the removal procedures for installation.

How to remove and replace the PCV valve on Cadillac DeVille?

Lift the engine cover and with the engine running at normal temperature, pull the valve accompanied with the hose off the rubber grommet in the valve cover. Depress the end of the valve and, if there is no vacuum, then look for a plugged hose, manifold port or the valve; replace any bad hoses. When the engine is running, unscrew the PCV valve and check for suction at the end; when the engine is switched off, shake the valve and listen to the rattle noise. Switch off the engine and again try shaking the PCV valve; if the sound is not of rattle then take a new one. To replace the valve simply unscrew or slide the valve from the end of the hose remembering which way it was installed. Always ensure you get the correct PCV valve for your car, especially in regard to the model year and the engine size; compare the old valve with the new one. Insert the valve well into the end of the hose to engage the rubber grommet, check the condition of the grommet and replace if required. Finally lock the PCV valve and hose firmly in the place in the valve cover and fit the engine cover again.

OEM Cadillac PCV Valve

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33 PCV Valves found

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Cadillac PCV Valve Part Number: 12608378
$31.84 MSRP: $59.80
You Save: $27.96 (47%)
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Product Specifications
- Other Name: Valve, Evaporator Emission Canister Purge Solenoid; Purge Valve; Purge Solenoid; Purge Control Valve
- Replaced by: 12735400
Fits the following Cadillac Models:
- DTS | 2006-2011 | Base, Livery, Luxury, Platinum, Premium | 8 Cyl 4.6 L GAS
- SRX | 2006-2009 | Base | 8 Cyl 4.6 L GAS
- STS | 2006-2010 | Base, Platinum | 8 Cyl 4.6 L GAS
- XLR | 2006-2009 | Base, Platinum | 8 Cyl 4.6 L GAS
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Cadillac PCV Valve Part Number: 6487936
$1.20 MSRP: $8.38
You Save: $7.18 (86%)
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Product Specifications
- Other Name: Valve, Crankcase Ventilation System; Valve, Engine Crankcase; Valve, Crankcase
Fits the following Cadillac Models:
- Eldorado | 1984-1985 | Base, Biarritz, Cabriolet, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
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Cadillac PCV Valve Part Number: 12655399
$19.99 MSRP: $37.54
You Save: $17.55 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 12637663
Fits the following Cadillac Models:
- ATS | 2013-2018 | Base, Luxury, Performance, Premium | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- CTS | 2014-2016 | Base, Luxury, Performance, Premium | 4 Cyl 2.0 L GAS
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Cadillac PCV Valve Part Number: 12653216
$8.09 MSRP: $15.20
You Save: $7.11 (47%)
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Product Specifications
- Other Name: Fitting-PCV; Fitting, Engine Crankcase Ventilation
Fits the following Cadillac Models:
- ATS | 2016-2019 | V | 6 Cyl 3.6 L GAS
- XTS | 2014-2019 | Vsport Platinum, Vsport Premium, Vsport Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac PCV Valve Part Number: 12663027
$28.82 MSRP: $54.12
You Save: $25.30 (47%)
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Product Specifications
- Other Name: Valve, PCV; Valve, Engine Crankcase
Fits the following Cadillac Models:
- ATS | 2017-2019 | Base, Luxury | 4 Cyl 2.0 L GAS
- CTS | 2017-2019 | Base, Luxury | 4 Cyl 2.0 L GAS
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Cadillac PCV Valve Part Number: 12655189
$22.21 MSRP: $41.70
You Save: $19.49 (47%)
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Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 12650732
Fits the following Cadillac Models:
- ATS | 2013-2019 | Base, Luxury, Performance, Premium | 4 Cyl 2.0 L GAS
- CT6 | 2016-2018 | Base, Luxury, Plug-In | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- CTS | 2014-2016 | Base, Luxury, Performance, Premium | 4 Cyl 2.0 L GAS
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Cadillac PCV Valve Part Number: 12637666
$20.25 MSRP: $38.02
You Save: $17.77 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Cadillac Models:
- ATS | 2013-2018 | Base, Luxury, Performance, Premium | 4 Cyl 2.0 L GAS
- CTS | 2014-2016 | Base, Luxury, Performance, Premium | 4 Cyl 2.0 L GAS
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Cadillac PCV Valve Part Number: 12721582
$11.93 MSRP: $21.60
You Save: $9.67 (45%)
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Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 12705103, 12664437, 12694767
Fits the following Cadillac Models:
- CT4 | 2020-2022 | Premium Luxury, V | 4 Cyl 2.7 L GAS
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Cadillac PCV Valve Part Number: 25042116
$12.60 MSRP: $19.38
You Save: $6.78 (35%)
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Product Specifications
- Other Name: Valve, PCV; Valve, Engine Crankcase
Fits the following Cadillac Models:
- Cimarron | 1986 | Base, d'Oro | 4 Cyl 2.0 L GAS
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Cadillac PCV Valve Part Number: 12665166
$15.23 MSRP: $28.60
You Save: $13.37 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Cadillac Models:
- ATS | 2017-2019 | Base, Luxury | 4 Cyl 2.0 L GAS
- CT6 | 2016-2018 | Base, Luxury, Plug-In | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- CTS | 2017-2019 | Base, Luxury | 4 Cyl 2.0 L GAS
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Cadillac PCV Valve Part Number: 12721691
$6.00 MSRP: $10.86
You Save: $4.86 (45%)
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Product Specifications
- Other Name: Valve-PCV; Valve, Engine Crankcase; Seal, Engine Crankcase
- Replaces: 55509665, 55514392, 55486664
Fits the following Cadillac Models:
- CT4 | 2020-2022 | Luxury, Premium Luxury, Sport | 4 Cyl 2.0 L GAS
- CT5 | 2020-2022 | Luxury, Premium Luxury, Sport | 4 Cyl 2.0 L GAS
- CT6 | 2019 | Luxury, Premium Luxury | 4 Cyl 2.0 L GAS
- XT4 | 2019-2024 | Luxury, Premium Luxury, Sport | 4 Cyl 2.0 L GAS
- XT5 | 2020-2023 | Luxury, Premium Luxury | 4 Cyl 2.0 L GAS
- XT6 | 2021-2023 | Luxury | 4 Cyl 2.0 L GAS
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Cadillac PCV Valve Part Number: 6487534
Product Specifications
- Other Name: Valve, Crankcase Vent; Valve, Crankcase Ventilation System; Valve, Engine Crankcase
Fits the following Cadillac Models:
- Eldorado | 1984-1985 | Base, Biarritz, Cabriolet, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
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Cadillac PCV Valve Part Number: 25043843
Product Specifications
- Other Name: Valve, PCV; Crankcase Vent Valve; Crankcase; Valve, Engine Crankcase
Fits the following Cadillac Models:
- Cimarron | 1987 | Base | 6 Cyl 2.8 L GAS
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Cadillac PCV Valve Part Number: 25095452
Product Specifications
- Other Name: Valve, PCV; Valve, Engine Crankcase
Fits the following Cadillac Models:
- Fleetwood | 1994-1996 | Base, Brougham | 8 Cyl 5.7 L GAS
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Cadillac PCV Valve Part Number: 25179136
Product Specifications
- Other Name: Valve, PCV; Valve, Engine Crankcase
Fits the following Cadillac Models:
- Escalade | 2002 | Base | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Escalade EXT | 2002 | Base | 8 Cyl 6.0 L GAS
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Cadillac Breather Element Part Number: 25042065
Product Specifications
- Other Name: Breather, Air Cleaner; Breather, Air Cleaner Intake
Fits the following Cadillac Models:
- DeVille | 1985 | Base, Cabriolet, d'Elegance | 6 Cyl 4.3 L DIESEL, 8 Cyl 4.1 L GAS
- Fleetwood | 1985 | 75, 75 Formal, Base, Brougham, Brougham d'Elegance, d'Elegance | 6 Cyl 4.3 L DIESEL, 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
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Cadillac PCV Valve Part Number: 25042995
Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Cadillac Models:
- Cimarron | 1986 | Base, d'Oro | 4 Cyl 2.0 L GAS
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Cadillac PCV Valve Part Number: 8997683
Product Specifications
- Other Name: Valve, PCV; Valve, Engine Crankcase
Fits the following Cadillac Models:
- Eldorado | 1984-1985 | Base, Biarritz, Cabriolet, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
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Cadillac PCV Valve Part Number: 25041678
Product Specifications
- Other Name: Valve, Crankcase; Valve, Engine Crankcase
Fits the following Cadillac Models:
- Eldorado | 1984-1985 | Base, Biarritz, Cabriolet, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
- Seville | 1984-1985 | Base, Elegante | 8 Cyl 5.7 L DIESEL
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Cadillac PCV Valve Part Number: 12646872
Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Cadillac Models:
- CT5 | 2022 | V Blackwing | 8 Cyl 6.2 L GAS
- CTS | 2016-2019 | V | 8 Cyl 6.2 L GAS

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1-20 of 33 Results

Cadillac PCV Valve

Choose OEM PCV Valve, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Cadillac's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM Cadillac PCV Valve. You can shop at highly competitive prices and protect your budget. All our genuine Cadillac parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Cadillac PCV Valve drags crankcase fumes back to the intake, pitting stagnant emissions and sludges. Cadillac emerged in 1902 to represent confident style, clean lines and no-apologetic power. Combining the feel of leather and crisp displays with tight ergonomics, Cadillac cabins are designed to have long miles seem short. Cadillac continues to push with electric flagships, user-friendly interfaces and construction that can withstand a harsh commute. The marque which started in Detroit has created a reputation of unremitting innovation beginning with electric starters in the brass age up to adaptable cruise in the present day, never losing the roar of it even as it pursued a smoother ride and cleaner lines. The appeal of its mix of style and performance is that drivers can be assured of enduring materials, robust power systems and an ability to transform even the basic of errands into a mini-vacation. PCV Valve is placed between crankcase and intake manifold and it opens enough under throttle position to draw blow-by gases into the fresh charge where it burns rather than baking into goo on cylinder walls. With idle, the PCV Valve virtually closes, avoiding lean misfires but it breathes so seals remain content. As revs increase, the PCV Valve snaps open, scavenges moisture, cools oil and even suppresses backfires by including a flame arrestor. The constant check maintains its metering spring in fine condition and predictable airflow, protecting both power and mpg.

Cadillac PCV Valve Parts and Q&A

PCV Valve
12691880
Q: How to Replace the PCV Valve and Hoses on Cadillac Escalade?
A:
The Positive Crankcase Ventilation (PCV) system reduces hydrocarbon emissions by scavenging crankcase vapors and burning them along with the air-fuel mixture. It utilizes a PCV orifice for 6.0L models or a PCV valve for non-6.0L models, which are threaded into either the rear of the left valve cover for 4.3L V6 or below the throttle body in the intake manifold for 5.3L and 6.2L V8 engines. The system includes two hoses: the fresh air inlet hose carries outside air from the air intake duct to a pipe on the right valve cover, mixing with blow-by gases and crankcase vapors in the crankcase. These vapors are drawn through the orifice or valve, then into the intake manifold to mix with incoming air. For replacement, note that the procedure does not apply to 6.0L VB models, as the orifice is part of the driver's-side valve cover and is not serviceable separately; if clogged, the valve cover must be removed for cleaning. For 4.3L V6 models, the driver's-side engine cover should be removed, and for 5.3L and 6.2L V8 engines, the intake air duct must be taken off. Disconnect the hose from the PCV valve and use a socket to unscrew the valve from the engine, then reverse the removal procedures for installation.
PCV Valve
19303069
Q: How to remove and replace the PCV valve on Cadillac DeVille?
A:
Lift the engine cover and with the engine running at normal temperature, pull the valve accompanied with the hose off the rubber grommet in the valve cover. Depress the end of the valve and, if there is no vacuum, then look for a plugged hose, manifold port or the valve; replace any bad hoses. When the engine is running, unscrew the PCV valve and check for suction at the end; when the engine is switched off, shake the valve and listen to the rattle noise. Switch off the engine and again try shaking the PCV valve; if the sound is not of rattle then take a new one. To replace the valve simply unscrew or slide the valve from the end of the hose remembering which way it was installed. Always ensure you get the correct PCV valve for your car, especially in regard to the model year and the engine size; compare the old valve with the new one. Insert the valve well into the end of the hose to engage the rubber grommet, check the condition of the grommet and replace if required. Finally lock the PCV valve and hose firmly in the place in the valve cover and fit the engine cover again.