Revision of Fca Jeep Diesel Manifold

The intake manifold with original code OE 46336681 è a component designed for second-generation diesel engines belonging to the FCA group, particularly in the Multijet II versions in various displacements. It is a modular manifold with the primary function of managing the flow of’intake air towards the cylinders, optimized for reducing emissions and improving’combustion efficiency.

The manifold integrates seats for the installation of EGR valves, pressure and temperature sensors, connections for additional ducts, and guides for proper positioning on inline four-cylinder engines.

Technical characteristics

È it features provisions for the installation of the EGR valve, support for the pressure and temperature sensor of the’air (MAP), as well asé a series of anchoring points that ensure a rigid and stable attachment to the cylinder head. The connection is made via a flat gasket, shaped from high-seal elastomeric material.

DIPA può intervene to review this spare part.

Applications

Alfa Romeo

• Giulia
• Giulietta
• Stelvio

Jeep

• Renegade

Fiat

• 500X
• Fiat 500L
• Doblò (Bus, Cargo, Flat platform)
• Fiat Ducato (Bus, Van, Flat platform)
• Tipo

The manifold è compatible with modular engine architectures featuring advanced electronic management, equipped with EGR systems, DPF, and integrated MAP/MAT sensors.

DIPA recommends to always check compatibilityà based on the specific engine code and chassis number.

Known defects and recurring failures

The mostù common issues found on the manifold 46336681 mainly concern:

• the formation of cracks or fissures in the plastic structure, which cause pressure loss and ingress of’unmeasured air
• the fault of the MAP sensor integrated, which canò lead to incorrect air-fuel mixture management
• the’accumulation of carbon deposits internally, particularly in the EGR channels, which restrict the flow of’air and worsen combustion
• the loss of seal of the gasketsresulting in the engine warning light turning on and performance drops
• the’wear of the mounting supportswhich canò compromise the’alignment between the manifold and the cylinder head

The symptoms associated with these failures include loss of power, irregular idle, increased fuel consumption, exhaust smoke, and the presence of error codes related to air management (e.g. P0105, P0106, P2279, P0401, P0402).

Summary specifications

The FCA intake manifold 46336681 è intended for diesel engines from 1.6 to 2.2 liters of the Multijet II family, with a four-cylinder inline architecture.

DIPA supports customers even in after-sales. Itò can intervene to overhaul these components and restore them to full functionalityàwith cost savings on replacements and a benefit for the’environment thanks to’circular economy.