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Service bulletin 0900602

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 id635682
Published by NHTSA2002-10-30
Manufacturer's number0900602
Manufacturer's date2002-08-12
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

CUSTOMER MAY COMPLAIN OF LOW COOLANT, COOLANT SMELL, WHITE SMOKE, MISFIRES, MALFUNCTION INDICATOR LAMP ON AND A CRACKED OR BROKEN SPARK PLUG. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
DODGE RAM VAN2002

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

Other bulletins for the same vehicles and component
683328102022-10-17. Service bulletin. Service - Four Piece Oil Pan Gasket All Cummins Equipped Vehicles ONLY - The replacement oil pan gasket can be a four piece gasket rather than a single piece gasket. This applies to Cummins 5.9L and 6.7L engines only. Installation: 1. Clean the oil pan T-joints.~ 2. Fill the T-joint between the pan rail/gear housing and pan rail/rear seal retainer with sealant. Use Mopar® Silicone Rubber Adhesive Sealant or equivalent. 3. Apply a 2-mm [0.063-in] bead of Mopar Engine Sealant RTV Silicone Rubber Adhesive, to the oil pan flange.~ 4. The four piece gasket will need to be assembled to make a complete oil pan gasket. 5. Lay the oil pan gasket(s) onto the oil pan flange.~ 6. Ensure the oil pan gasket segment joints are properly aligned. 7. Apply a 2-mm [0.063-in] bead of Mopar Engine Sealant RTV Silicone Rubber Adhesive, to the top of the oil pan gasket.~ 8. Install the oil pan. Starting from the center and working outward, tighten the oil pan bolts to 28 N·m [21 ft. lbs.].
R2118796A2021-05-03. Service bulletin. Valve Body. These may cause over drive cycling.
68332810A2021-05-03. Service bulletin. Cummins Equipped Vehicles ONLY - The replacement oil pan gasket can be a four piece gasket rather than a single piece gasket. This applies to Cummins 5.9L and 6.7L engines only.
90026882018-06-04. Service bulletin. 68069384A$, R8069384A$, 68086182A$, R8027067A$, RL002012A$ - Gasket, Cylinder Head Cover Before replacing injectors for Diagnostic Trouble Codes P0201, P0202, P0203, P0204, P0205, and/or P0206, please make sure that the wiring loom and/or connector in the valve cover gasket is not the root cause to your concern. In addition, make sure that the wiring attaching nuts are torqued to their proper value.~