engine

PCV Valve

for 2017 Dodge Viper 8.4L V10 · RWD

Difficulty

Easy

Time

30 min

Tools

Steps

🔍Draft — verification in progress. This procedure was built from OLP's spec database on September 13, 2026 and is queued for line-by-line review by Chris Hackleman — master technicians with 20+ years each. That review typically completes within 3 days of generation, and this banner changes to a verified badge the moment it does. Until then, cross-check every torque value and fluid capacity against the factory manual, and stop if anything looks unsafe. If something looks off, report it below — a real person reads every report.

Remove and replace the PCV valve on a 2008 Dodge Viper 8.4L V10 engine to restore proper crankcase ventilation.

Warnings

⚠Allow engine to cool completely before beginning work to avoid burns from hot engine components.

ℹ️The PCV valve is located in the passenger-side valve cover. Work area is tight due to proximity to firewall and exhaust manifold.

Tools required

Flathead screwdriver or pick tool

Needle-nose pliers

Shop towelsEssential

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Parts

PCV valve × 1 — Use OEM specification
PCV valve grommet (if damaged) × 1 — Use OEM specification

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Preparation

Park vehicle on level surface and set parking brake.
Allow engine to cool completely if recently operated.
Open hood and secure with prop rod.

Procedure

1
Locate the PCV valve
The PCV valve is installed in the passenger-side valve cover, near the rear of the engine bay. It connects to a vacuum hose that routes toward the intake manifold. Visually identify the valve and its connected hose before proceeding.
2
Disconnect the vacuum hose
Grasp the vacuum hose firmly at the connection point on the PCV valve. Twist gently while pulling to separate the hose from the valve nipple. If the hose is stuck due to age or heat, use needle-nose pliers to grip and twist the hose, taking care not to tear the rubber. Once disconnected, move the hose aside to provide clear access to the valve.
3
Remove the PCV valve from valve cover
The PCV valve is press-fit into a rubber grommet in the valve cover. Grasp the valve body firmly and pull straight up with steady pressure to extract it from the grommet. If the valve is seized, gently twist while pulling. Avoid using excessive force that could damage the grommet or valve cover. The valve should release from the grommet with moderate effort.
4
Inspect the grommet
With the PCV valve removed, inspect the rubber grommet remaining in the valve cover. Check for cracks, hardening, deterioration, or loss of elasticity. If the grommet is damaged or no longer pliable, use a flathead screwdriver or pick tool to carefully pry it out of the valve cover opening. Clean any debris from the valve cover opening with a shop towel.
5
Install new grommet (if required)
If the grommet was removed in the previous step, press the new grommet into the valve cover opening by hand. Ensure it seats fully and evenly in the valve cover bore. The grommet lip should sit flush with the valve cover surface.
6
Install new PCV valve
Press the new PCV valve straight down into the grommet with firm, steady pressure. The valve should seat completely with the base making contact with the grommet. Ensure the valve nipple is oriented for easy connection to the vacuum hose routing path.
7
Reconnect vacuum hose
Push the vacuum hose firmly onto the PCV valve nipple until it is fully seated. The hose should slide over the nipple approximately 0.5-0.75 inches and fit snugly. Tug gently on the hose to verify secure attachment. Inspect the hose routing to ensure it is not kinked or in contact with hot exhaust components.

Reassembly

No disassembly was required beyond the PCV valve removal; all components are now installed.

Verification

Start the engine and allow it to idle. Listen for any vacuum leaks (hissing sounds) near the PCV valve connection.
With engine at idle, you can carefully pinch or disconnect the PCV hose briefly to verify valve function; engine idle should change noticeably, confirming airflow through the valve.
Visually inspect the PCV valve and hose connections for proper seating with no visible gaps.
Check for smooth engine idle with no roughness that would indicate an air leak at the PCV installation.

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