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Service bulletin 9003633

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 id10121828
Published by NHTSA2017-11-03
Manufacturer's number9003633
Manufacturer's date2016-11-16
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Water Pump Dealers are replacing water pumps because of a coolant leak. Water pumps are found TNF but the water pump bypass o-ring was pinched resulting in a coolant leak that looks like a failed pump. Please inspect the bypass o-ring before replacing the pump as it is available separate for service.

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

Vehicles listed
JEEP GRAND CHEROKEE2014, 2015, 2016, 2017
RAM 15002014, 2015, 2016, 2017

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
15V5170002015-08-14. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

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
1097272026-01-28. Service bulletin. Water Pump & Chain Case Cover
1097242026-01-28. Service bulletin. Water Pump & Chain Case Cover
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1085462025-12-11. Service bulletin. ISOLATOR - ENGINE MOUNT
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.
S2509000001 REV.B2025-07-31. Service bulletin. Engine Rattle Noise
91006222025-07-09. Service bulletin. When replacing a camshaft and parts kit (P/N 68661146xx and/or 68661147xx), it is NOT necessary to order the roller-finger followers (rocker arms) separately, as these are included in the camshaft parts kit.
91006142025-06-26. Service bulletin. ADJUSTER Valve Lash Customer's complaint may include a ticking noise coming from the engine. Technician's observations can refer to spongy or stuck hydraulic lash adjusters. Exhaust lash adjusters found with a "spongy" condition (compressible plunger) leading to the assumption of being defective/malfunctioning. EXHAUST lash adjusters are designed to be COMPRESSIBLE by hand. Intake lash adjusters found with a stiff or stuck condition (non-compressible plunger) leading to the assumption of being defective/malfunctioning. INTAKE lash adjusters are designed to be NON COMPRESSIBLE by hand. Do Not Replace EXHAUST lash adjusters when the following condition is present: should be compressible, but they will exert a reactionary spring force during compression and return to full expansion without a compression force. Do Not Replace INTAKE lash adjusters when the following condition is present: should feel very firm and difficult to compress. Once the correct functioning of the intake and exhaust lash adjusters is validated with the procedure above, refer to the Service Manual "HYDRAULIC LIFTER(S) NOISE DIAGNOSIS" procedure. After the corresponding service procedures from the Service Manual involving the Lash Adjusters have been conducted, refer to the detailed instructions in the Service Manual to diagnose and/or service any other component.
9100498 Rev 32025-05-19. Service bulletin. 3.6L PSU Long Block Misfire DTC codes and/or rough idle and/or valvetrain noise. Refer to SOL # S2509000004. It is also important to confirm that the vehicle being repaired has the latest calibration/software update for oil pump operation mode (high pressure mode) during engine start up. RU, VF, WL & WD vehicles already include the latest oil pump mode in all 25MY and beyond. 24MY service releases are also available. JL & JT were updated as a running change in 24MY and beyond (08/15/24 & 08/19/24 respectively). 24MY service releases available. DT was updated starting 25MY and beyond. If the vehicle to be repaired is a 24MY vehicle with a service release available, please follow the released service procedures to update to the corresponding calibration/software.
S2509000001 REV.A2025-04-01. Service bulletin. Engine Rattle Noise