WenmarOpen by Wenmar Pro

Service bulletin 09-006-15 REV A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10159936
Published by NHTSA2019-05-20
Manufacturer's number09-006-15 REV A
Manufacturer's date2015-11-13
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING

NHTSA's summary

Intermittent Engine Shudder While Driving This bulletin involves replacing the engine cylinder heads. A small number of customers may experience a slight engine shudder while driving. They may state that the condition feels and sounds like driving over rumble strips. It may also be perceived as an internal transmission issue or engine misfire. No Diagnostic Trouble Codes (DTCs) will set as a result of this condition. DISCUSSION: The root cause of the engine shudder has been found to be due to excess carbon build-up on the exhaust valve stems and will typically happen on vehicles driven mostly in light load conditions. As a result, new cylinder heads have been released that are equipped with newly designed valve stem seals. These newly designed seals are designed to help prevent excessive carbon from building up on the valve stems. Although it may be hard to reproduce, engine shudder resulting from these excess carbon deposits, will typically only happen under the following driving conditions: ? Steady speeds between 50 and 70 mph (80 and 113 kph). ? Engine speed between 1600 - 2000 RPM. ? Present during engine warm up to operating temperature after a cold soak. ? Only present for a few seconds at a time and often during a 6-7 upshift. ? Light load acceleration or while driving up a slight grade. ? Symptom will go away either by aggressively applying the accelerator pedal or going into a zero throttle deceleration.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Equipment and accessories

Vehicles listed
JEEP GRAND CHEROKEE2014
RAM 15002014

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20233382023-06-08. Engine
23V4110002023-06-08. ENGINE AND ENGINE COOLING
20205442020-11-12. Engine
20V6990002020-11-12. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)
20203712020-08-13. Engine
20V4750002020-08-13. ENGINE AND ENGINE COOLING:ENGINE:DIESEL
20195352019-10-25. Engine
19V7570002019-10-24. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)
20182692018-05-17. Engine
20162142016-05-12. Accessories

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
91006392025-08-13. Service bulletin. Verify Reman part number availability. Order the "R" part number for all orders: Warranty, Mopar, customer pay and service contract. Order "68" part number for New unsold units only.
S25050000012025-03-05. Service bulletin. CEL (Check Engine Lamp) C006A-49 Multi-Axis Acceleration Sensor Internal Electronic Failure And C10CC-00 ESC Sensors.
09023232024-01-16. Service bulletin. Throttle Blade Icing Service Fix Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P2072 - Electronic Throttle Control System - Ice Blockage. ? P2110 - Electronic Throttle Control - Forced Limited RPM. ? P2118 - Electronic Throttle Control Motor Current Performance - Bank 1. The customer may also comment on the following: ? The vehicle may not start (below freezing conditions - typically -7 °C (-20 °F)) This bulletin involves removing the PCV valve and hose to dry out, drying out the throttle body and installing an updated make-up air hose, air cleaner lid and changing the oil.
91002292024-01-08. Service bulletin. LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and not a defect.
9003357A2024-01-02. Service bulletin. ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY review and follow instructions from the latest STAR Online S1809000007 available on Dealer Connect. Also, consider the following: 1) Remove OFA 2) Replace only the oil inlet O-ring and gaskets (seals kit in SOL above). 3) Re-install the OFA. For 2023MY and beyond use black O-ring. For 2022MY and prior use red O-ring. Note: When replacing OFA, it may be necessary to transfer the Oil Temp/Pressure Sensor from the old OFA to the new OFA.
931202023-10-02. Service bulletin. FCA Caribbean Warranty Bulletin ID-23-20 "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC
930232023-10-02. Service bulletin. Warranty Bulletin D-16-03 - "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC (Rev. B)
91001962023-09-25. Service bulletin. Lubrication and Maintenance Fluids If MOPAR fluids and chemicals are not readily available, please review Service Library for specifications so a suitable alternative can be used
07007232023-07-31. Service bulletin. Water Quality When Mixed With Engine Coolant
18048232023-05-30. Service bulletin. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK