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Service bulletins for the 1999 Dodge Ram Van

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.

77 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
683328102022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. 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. ENGINE AND ENGINE COOLING. Valve Body. These may cause over drive cycling.
68332810A2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. 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. EQUIPMENT; ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING. 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.~
18004022002-03-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING 1999 MY ENGINE SPARK KNOCK. *TT
25004012001-07-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SUBJECT REGARDING ADDITIONAL DIAGNOSTIC FOR DIAGNOSTIC TROUBLE CODES CAUSED BY AN EVAPORATIVE SYSTEM LEAK. *TT
9762001-06-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. ON SOME VEHICLES THE ON-BOARD DIAGNOSTIC (OBD) SYSTEM MAY NOT DETECT A CATALYST FAILURE AS REQUIRED BY CALIFORNIA EMISSIONS REGULATION. AS A RESULT, THE OBD SYSTEM MAY NOT ILLUMINATE THE CHECK ENGINE LIGHT IF A CATALYST FAILS. *TT
180600C2001-03-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLE ENGINES MAY EXHIBIT A LIGHT TO MODERATE SPARK KNOCK CONDITION DURING ACCELERATION (UNDER LOAD). *TT
180600A2000-12-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLE ENGINES MAY EXHIBIT A LIGHT-TO-MODERATE SPARK KNOCK CONDITION DURING ACCELERATION (UNDER LOAD). *TT
180600B2000-12-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLE ENGINES MAY EXHIBIT A LIGHT-TO-MODERATE SPARK KNOCK CONDITION DURING ACCELERATION (UNDER LOAD). *TT
0824002000-11-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. ON SOME VEHICLES THE ENGINE CRANKS BUT DOES NOT START OR STARTS AND STALLS. *TT
1806002000-09-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING 1999 MODEL YEAR ENGINE SPARK KNOCK. *TT
0905002000-04-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. EXPERIENCING SPARK KNOCK AND ENGINE OIL CONSUMPTION DUE TO INTAKE MANIFOLD PAN GASKET OIL LEAK. *TT
1801002000-04-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SUBJECT REGARDING MISDIAGNOSED LEAK DETECTION PUMP SYSTEMS WITH DIAGNOSTIC TROUBLE CODES P1494, P0442 P0455, OR P0456. *TT
1825992000-02-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION ON ERRONEOUS ENGINE MISS WHILE PERFORMING DIAGNOSTICS WITH THE DIAGNOSTIC SCAN TOOL (DRB III). *TT
0906991999-10-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING SPARK KNOCK AND ENGINE OIL CONSUMPTION DUE TO INTAKE MANIFOLD PAN GASKET OIL LEAK. *TT
99231999-08-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CONDITIONS MAY EXIST WHERE OIL SEEPAGE PAST THE ENGINE OIL FILTER ADAPTER PLATE GASKET. *TT
1837981999-02-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CONSUMERS THAT INADVERTENTLY FLOOD THEIR ENGINES DURING STARTING MAY TRY TO PERFORM A CLEAR FLOOD PROCEDURE TO HELP START THEIR VEHICLES. *AK
0709981999-02-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. SUBJECT ON VISCOUS FAN DRIVE SERVICE. *YC
2502981999-01-20. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SUBJECT REGARDING I/M ( INSPECTION MAINTENANCE ) TESTING - OBD II "CARB" READINESS MONITOR INFORMATION. *YC
0705981998-11-04. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. EXPERIENCING ENGINE COOLING FAN NOISES. *YC

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.