How to Service and Repair the PCV Valve Hose on Cadillac Eldorado?

Begin the crankcase ventilation hose and pipe replacement by taking off the two nuts from the fuel injector sight shield while lifting it from front to remove the rear tab from its bracket. First detach the pcv fresh air tube both from the left camshaft cover and the Throttle Body before you remove the Drive Belt. The following step involves disconnecting the Power Steering Pump retaining bolt while you set the Power Steering Pump in place keeping its hoses secured. Begin by removing the retaining clip from the pcv dirty air tube and disconnecting the tube from the pcv orificed tube and then pull out the tube from the Intake Manifold. Installation requires connecting the pcv dirty air tube to its Intake Manifold fitting before attaching the pcv orificed tube while placing it between the Intake Manifold tabs. The installation process begins with attaching the retaining clip to the Intake Manifold followed by repositioning the Power Steering Pump in the engine valley and inserting the molded wedge into the retaining feature that belongs to the cylinder block. Install the Power Steering Pump retaining bolt and use torque at 50 nm (37 ft. Lbs.) before fitting the Drive Belt. Connect the pcv fresh air tube by reattaching it to the Throttle Body as well as the left camshaft cover. Push the sight shield toward the inside using the rear tab on the slot of the rear bracket before engaging the shield to pull it downwards until you reach alignment of the Intake Manifold holes and studs. Install the fuel injector sight shield nuts and tighten them to 3 nm (27 inch lbs.).

How to replace the PCV Valve Hose (LLT) on Cadillac STS?

You must remove the fuel injector sight shield as your first step when replacing the positive crankcase ventilation hose/pipe/tube (LLT). The two Intake Manifold insulator retaining pins must be taken out before the Intake Manifold insulator can be removed. Detach the pcv fresh air tube by freeing it from both the left camshaft cover along with the air inlet. On the right camshaft cover separate the pcv dirty air tube and on the Intake Manifold complete the same process. The installation procedure requires you to connect the pcv dirty air tube first to the right camshaft cover before connecting it to the Intake Manifold . The pcv fresh air tube should be attached to the air inlet and left camshaft cover. Complete the installation by first putting back the Intake Manifold insulator and attaching it with the two Intake Manifold insulator retaining pins before installing the fuel injector sight shield.

OEM Cadillac PCV Valve Hose

Positive Crankcase Ventilation Valve Hose

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42 PCV Valve Hoses found

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Cadillac PCV Tube
Part Number: 12638542
$19.17 MSRP: $36.00
You Save: $16.83 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tube, Engine Crankcase Ventilation; Crankcase Breather Hose
Fits the following Cadillac Models:
- CT4 | 2022-2024 | V Blackwing | 6 Cyl 3.6 L GAS
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Cadillac PCV Tube
Part Number: 12633792
$204.99 MSRP: $416.36
You Save: $211.37 (51%)
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Product Specifications
- Other Name: Tube Assembly-PCV; Crankcase Breather Hose; Tube, Engine Crankcase Ventilation
Fits the following Cadillac Models:
- ATS | 2013-2016 | Base, Luxury | 4 Cyl 2.5 L GAS
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Cadillac PCV Valve
Part Number: 12680863
$19.02 MSRP: $35.72
You Save: $16.70 (47%)
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Product Specifications
- Other Name: Tube Assembly-PCV; Crankcase Breather Hose; PCV Valve Hose; PCV Hose; PCV Tube; Tube, Engine Crankcase Ventilation
- Replaces: 12644901
Fits the following Cadillac Models:
- SRX | 2012-2016 | Base, Luxury, Performance, Premium | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Cadillac PCV Tube
Part Number: 12643692
$19.56 MSRP: $36.74
You Save: $17.18 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Tube, PCV; Tube, Engine Crankcase Ventilation
Fits the following Cadillac Models:
- XTS | 2013-2019 | Base, Livery, Luxury, Platinum, Premium, Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac PCV Tube
Part Number: 12630867
$15.02 MSRP: $28.20
You Save: $13.18 (47%)
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Product Specifications
- Other Name: Tube Assembly-PCV (Fresh Air); Crankcase Breather Hose; Tube, Engine Crankcase Ventilation
Fits the following Cadillac Models:
- ATS | 2013-2015 | Luxury, Performance, Premium | 6 Cyl 3.6 L FLEX
- CTS | 2014-2015 | Luxury, Performance, Premium | 6 Cyl 3.6 L FLEX
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Cadillac PCV Tube
Part Number: 12659585
$39.14 MSRP: $70.84
You Save: $31.70 (45%)
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Product Specifications
- Other Name: Tube, Engine Crankcase Ventilation
- Replaces: 12654002
Fits the following Cadillac Models:
- XTS | 2014-2019 | Vsport Platinum, Vsport Premium, Vsport Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac Overflow Hose
Part Number: 12701601
$30.11 MSRP: $53.76
You Save: $23.65 (44%)
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Product Specifications
- Other Name: Tube Assembly-PCV Foul Air; Tube, Engine Crankcase Ventilation
- Replaces: 12669953
Fits the following Cadillac Models:
- XT5 | 2017-2023 | Base, Luxury, Platinum, Premium Luxury, Sport | 6 Cyl 3.6 L GAS
- XT6 | 2020-2024 | Premium Luxury, Sport | 6 Cyl 3.6 L GAS
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Cadillac PCV Hose
Part Number: 12649933
$22.11 MSRP: $40.02
You Save: $17.91 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Tube Assembly-PCV; Crankcase Breather Hose; PCV Tube; Tube, Engine Crankcase Ventilation
Fits the following Cadillac Models:
- XT5 | 2017-2023 | Base, Luxury, Platinum, Premium Luxury, Sport | 6 Cyl 3.6 L GAS
- XT6 | 2020-2024 | Premium Luxury, Sport | 6 Cyl 3.6 L GAS
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Cadillac PCV Tube, Passenger Side
Part Number: 12668054
$25.87 MSRP: $48.28
You Save: $22.41 (47%)
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Product Specifications
- Other Name: Tube Assembly-PCV; Crankcase Breather Hose
- Position: Passenger Side
- Replaces: 12662046
Fits the following Cadillac Models:
- ATS | 2016-2019 | V | 6 Cyl 3.6 L GAS
- CT4 | 2022-2024 | V Blackwing | 6 Cyl 3.6 L GAS
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Cadillac PCV Tube, Passenger Side
Part Number: 12662046
$25.87 MSRP: $48.28
You Save: $22.41 (47%)
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Product Specifications
- Other Name: Tube Assembly-PCV (Right-Hand Cam Cover To Right-Hand Turbo Inlet); Crankcase Breather Hose; Tube, Engine Crankcase Ventilation
- Position: Passenger Side
- Replaced by: 12668054
Fits the following Cadillac Models:
- ATS | 2016-2019 | V | 6 Cyl 3.6 L GAS
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Cadillac PCV Tube
Part Number: 12681076
$86.87 MSRP: $136.07
You Save: $49.20 (37%)
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Product Specifications
- Other Name: Tube Assembly-PCV; Tube, Engine Crankcase Ventilation
- Replaces: 12679947, 12669954
Fits the following Cadillac Models:
- CT6 | 2016-2019 | Luxury, Platinum, Premium Luxury, Sport | 6 Cyl 3.0 L GAS
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Cadillac PCV Tube
Part Number: 12679798
$37.89 MSRP: $59.35
You Save: $21.46 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tube Assembly-PCV; Tube, Engine Crankcase Ventilation
- Replaces: 12670158, 12615963
Fits the following Cadillac Models:
- XTS | 2014-2019 | Vsport Platinum, Vsport Premium, Vsport Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac PCV Tube
Part Number: 12664186
$11.47 MSRP: $17.96
You Save: $6.49 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tube Assembly-PCV; Crankcase Breather Hose; Tube, Engine Crankcase Ventilation
Fits the following Cadillac Models:
- CT4 | 2020-2024 | Premium Luxury, V | 4 Cyl 2.7 L GAS
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Cadillac PCV Tube, Passenger Side
Part Number: 12655014
$21.37 MSRP: $33.46
You Save: $12.09 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tube Assembly-PCV; Crankcase Breather Hose; Tube, Engine Crankcase Ventilation
- Position: Passenger Side
Fits the following Cadillac Models:
- CT6 | 2016-2019 | Luxury, Platinum, Premium Luxury, Sport | 6 Cyl 3.0 L GAS
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Cadillac PCV Tube
Part Number: 12667981
$23.72 MSRP: $37.16
You Save: $13.44 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tube Assembly-PCV (W/3 Quick Connectors); Crankcase Breather Hose; Tube, Engine Crankcase Ventilation
Fits the following Cadillac Models:
- CT6 | 2019-2020 | Platinum, V | 8 Cyl 4.2 L GAS
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Cadillac PCV Tube
Part Number: 12615963
$37.89 MSRP: $59.35
You Save: $21.46 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Tube, Engine Crankcase Ventilation
- Replaced by: 12679798
Fits the following Cadillac Models:
- XTS | 2014-2016 | Vsport Platinum, Vsport Premium | 6 Cyl 3.6 L GAS
View related parts
Cadillac PCV Tube
Part Number: 12699309
$49.63 MSRP: $77.73
You Save: $28.10 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tube Assembly-Intake Air Duct PCV; Tube, Engine Crankcase Ventilation
Fits the following Cadillac Models:
- Escalade | 2023 | V | 8 Cyl 6.2 L GAS
- Escalade ESV | 2023 | V | 8 Cyl 6.2 L GAS
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Cadillac PCV Tube, Driver Side
Part Number: 12659515
$30.43 MSRP: $48.32
You Save: $17.89 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Tube Assembly-PCV; Crankcase Breather Hose; Tube, Engine Crankcase Ventilation
- Position: Driver Side
Fits the following Cadillac Models:
- CT6 | 2016-2019 | Luxury, Platinum, Premium Luxury, Sport | 6 Cyl 3.0 L GAS
View related parts
Cadillac PCV Hose
Part Number: 12718937
$52.96 MSRP: $82.97
You Save: $30.01 (37%)
ADD TO CART
Product Specifications
- Other Name: Hose-PCV; Hose, Engine Crankcase Ventilation
- Replaced by: 12740189
- Replaces: 55510092
Fits the following Cadillac Models:
- 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
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Cadillac Vent Tube
Part Number: 3540428
Product Specifications
- Other Name: Tube Assembly-Crankcase Vent; PCV Tube; Tube, Engine Crankcase Ventilation
Fits the following Cadillac Models:
- DeVille | 1994 | Concours | 8 Cyl 4.6 L GAS
- Eldorado | 1993-1994 | Base, Sport, Touring | 8 Cyl 4.6 L GAS

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1-20 of 42 Results

Cadillac PCV Valve Hose Parts Questions & Experts Answers

Vent Tube
12556100
Q: How to Service and Repair the PCV Valve Hose on Cadillac Eldorado?
A: Begin the crankcase ventilation hose and pipe replacement by taking off the two nuts from the fuel injector sight shield while lifting it from front to remove the rear tab from its bracket. First detach the pcv fresh air tube both from the left camshaft cover and the Throttle Body before you remove the Drive Belt. The following step involves disconnecting the Power Steering Pump retaining bolt while you set the Power Steering Pump in place keeping its hoses secured. Begin by removing the retaining clip from the pcv dirty air tube and disconnecting the tube from the pcv orificed tube and then pull out the tube from the Intake Manifold. Installation requires connecting the pcv dirty air tube to its Intake Manifold fitting before attaching the pcv orificed tube while placing it between the Intake Manifold tabs. The installation process begins with attaching the retaining clip to the Intake Manifold followed by repositioning the Power Steering Pump in the engine valley and inserting the molded wedge into the retaining feature that belongs to the cylinder block. Install the Power Steering Pump retaining bolt and use torque at 50 nm (37 ft. Lbs.) before fitting the Drive Belt. Connect the pcv fresh air tube by reattaching it to the Throttle Body as well as the left camshaft cover. Push the sight shield toward the inside using the rear tab on the slot of the rear bracket before engaging the shield to pull it downwards until you reach alignment of the Intake Manifold holes and studs. Install the fuel injector sight shield nuts and tighten them to 3 nm (27 inch lbs.).
PCV Valve
12614861
Q: How to replace the PCV Valve Hose (LLT) on Cadillac STS?
A: You must remove the fuel injector sight shield as your first step when replacing the positive crankcase ventilation hose/pipe/tube (LLT). The two Intake Manifold insulator retaining pins must be taken out before the Intake Manifold insulator can be removed. Detach the pcv fresh air tube by freeing it from both the left camshaft cover along with the air inlet. On the right camshaft cover separate the pcv dirty air tube and on the Intake Manifold complete the same process. The installation procedure requires you to connect the pcv dirty air tube first to the right camshaft cover before connecting it to the Intake Manifold . The pcv fresh air tube should be attached to the air inlet and left camshaft cover. Complete the installation by first putting back the Intake Manifold insulator and attaching it with the two Intake Manifold insulator retaining pins before installing the fuel injector sight shield.

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