What is the purpose of a Positive Crankcase Ventilation (PCV) system and PCV Valve for Cadillac ElDorado and Fleetwood?

Instead of venting them to the atmosphere, a positive crankcase ventilation (PCV) system is used to consume crankcase vapors in the combustion process. In gasoline engines, small amounts of combustion gas pass by the piston rings and get into the crankcase. Such crankcase blow-by gases have unwanted air pollutants, which are hydrocarbons. The PCV system is used to keep these vapors from getting away into the atmosphere while still allowing for adequate ventilation of the crankcase that ensures good oil quality. It should be checked every time you change oil and serviced every 48,000 kilometers (30,000 miles). For it can be damaged, never run an engine without a PCV valve or a ventilation system. Beginning with locating PCV valve usually found either in valve cover or intake manifold and then disconnecting the crank case ventilation tube from the positive crank case ventilation valve followed by removing the PCV valve from its grommet, install PCV valve by having it inserted into grommet with connecting ventilation tube to PCV valve.

Genuine Cadillac Eldorado PCV Valve

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5 PCV Valves found

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Cadillac Eldorado Valve Asm,Pcv
Part Number: 19303069
$3.65 MSRP: $6.54
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Product Specifications
- Other Name: VALVE, Engine Crankcase; PCV Valve
- Replaces: 06487532, 6487532
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-2001 Cadillac Eldorado | ELDORADO | 8 Cyl 4.6L
- 1982-1989 Cadillac Eldorado | BIARRITZ, COMMERCIAL CHASSIS, ELDORADO | 8 Cyl 4.1L, 8 Cyl 4.5L
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Cadillac Eldorado Valve,Pcv
Part Number: 6487779
$9.83 MSRP: $17.64
You Save: $7.81 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: VALVE, Engine Crankcase; PCV Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1993 Cadillac Eldorado | COMMERCIAL CHASSIS, ELDORADO | 8 Cyl 4.5L, 8 Cyl 4.6L, 8 Cyl 4.9L
- 1982-1985 Cadillac Eldorado | BIARRITZ, COMMERCIAL CHASSIS, ELDORADO | 8 Cyl 4.1L
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Cadillac Eldorado Breather Assembly, Air Cleaner & Silencer
Part Number: 6484966
$3.62 MSRP: $6.50
You Save: $2.88 (45%)
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Product Specifications
- Other Name: BREATHER, Air Cleaner Intake; Breather, Breather Element
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982 Cadillac Eldorado | ELDORADO | 6 Cyl 4.1L
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Cadillac Eldorado Valve,Crankcase Vent
Part Number: 6487534
Product Specifications
- Other Name: VALVE, Engine Crankcase; PCV Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982 Cadillac Eldorado | ELDORADO | 6 Cyl 4.1L
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Cadillac Eldorado Valve,Crankcase Vent
Part Number: 25041678
Product Specifications
- Other Name: VALVE, Engine Crankcase; PCV Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1985 Cadillac Eldorado | BIARRITZ, COMMERCIAL CHASSIS, ELDORADO | 8 Cyl 5.7L Diesel

Cadillac Eldorado PCV Valve Parts Questions & Experts Answers

Valve Asm,Pcv
19303069
Q: What is the purpose of a Positive Crankcase Ventilation (PCV) system and PCV Valve for Cadillac ElDorado and Fleetwood?
A: Instead of venting them to the atmosphere, a positive crankcase ventilation (PCV) system is used to consume crankcase vapors in the combustion process. In gasoline engines, small amounts of combustion gas pass by the piston rings and get into the crankcase. Such crankcase blow-by gases have unwanted air pollutants, which are hydrocarbons. The PCV system is used to keep these vapors from getting away into the atmosphere while still allowing for adequate ventilation of the crankcase that ensures good oil quality. It should be checked every time you change oil and serviced every 48,000 kilometers (30,000 miles). For it can be damaged, never run an engine without a PCV valve or a ventilation system. Beginning with locating PCV valve usually found either in valve cover or intake manifold and then disconnecting the crank case ventilation tube from the positive crank case ventilation valve followed by removing the PCV valve from its grommet, install PCV valve by having it inserted into grommet with connecting ventilation tube to PCV valve.