Service bulletins for the 1998 Dodge Ram
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.
167 on file from NHTSA, as of 2026-10-19.
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By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| 68332810 | 2022-10-17. 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.]. |
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| R2118796A | 2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. Valve Body. These may cause over drive cycling. |
| 68332810A | 2021-05-03. 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. |
| 9002688 | 2018-06-04. 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.~ |
| 1100605 | 2006-01-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. ILLUMINATED MIL AS THE RESULT OF A DIAGNOSTIC TROUBLE CODE (DTC) P0420 - CATALYST EFFICIENCY, OR MAY HAVE FAILED A CALIFORNIA SMOG OR STATE I/M TEST BUT WITHOUT AN ILLUMINATED MIL, OR A RATTLING SOUND FROM THE UNDERSIDE OF THE VEHICLE. CATALYTIC CONVERTER EXTENDED WARRANTY TO REPLACE THE CATALYTIC CONVERTER. *TT |
| 1803003A | 2003-12-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GENERIC CUMMINS ENGINE CONTROL MODULE (PCM) PROCEDURE. *TT THIS BULLETIN REPLACED 18-030-03. *TT THIS BULLETIN REPLACED 18-030-03A DATED 10/17/03. TO ALSO INCLUDE 2005 RAM TRUCK. *TT |
| 1803003 | 2003-10-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GENERIC CUMMINS ENGINE CONTROL MODULE (PCM) PROCEDURE. *TT |
| 0900802 | 2003-02-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE KNOCK OR RATTLE SOUND WHEN CLIMBING A LONG GRADE AND TOWING A HEAVY TRAILER. *TT |
| 0900202 | 2002-09-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING CRANKCASE BREATHER OVERFLOW. *SLC |
| 0900401 | 2002-03-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. CUSTOMER MAY COMPLAIN OF HIGH OIL CONSUMPTION, GREY OIL SMOKE COMING OUT OF THE EXHAUST OR BREATHER TUBE, OR MECHANICAL KNOCKING. *TT |
| 1801901 | 2001-10-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXPERIENCE COLD IDLE ENGINE WARMING *SLC |
| 0900601 | 2001-10-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VEHICLES MAY EXPERIENCE OIL PAN GASKET LEAKS.*SLC |
| 1801401 | 2001-10-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING PERFORMANCE ENHANCEMENTS, HARD STARTING AND / OR IDLE SPEED FLUCTUATIONS FOR SEVERE COLD WEATHER ENVIRONMENTS. *TT |
| 2500401 | 2001-07-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SUBJECT REGARDING ADDITIONAL DIAGNOSTIC FOR DIAGNOSTIC TROUBLE CODES CAUSED BY AN EVAPORATIVE SYSTEM LEAK. *TT |
| 0900201 | 2001-05-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. VEHICLES THAT ARE USED FOR EXTENDED HEAVY TRAILER HAULING PURPOSES MAY EXPERIENCE A LOSS OF EXHAUST MANIFOLD BOLT TORQUE. *TT |
| 1801500A | 2001-04-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. CUSTOMER MAY COMPLAIN OF POOR DRIVEABILITY WHEN WINTER FUEL IS USED TO POWER THE ENGINE. OR, THE CUSTOMER MAY COMPLAIN OF A HARD OR NO-START CONDITION, WHILE THE ENGINE IS AT NORMAL OPERATING TEMPERATURES, WHEN USING ANY TYPE OF GOOD QUALITY DIESEL FUEL. *JB |
| 180500G | 2001-03-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXHIBIT A LIGHT TO MODERATE SPARK KNOCK CONDITION DURING ACCELERATION (UNDER LOAD). *TT |
| 180500F | 2000-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLE ENGINES MAY EXHIBIT A LIGHT-TO-MODERATE SPARK KNOC CONDITION DURING ACCELERATION (UNDER LOAD). *TT |
| 180500E | 2000-12-04. 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 |
| 082400 | 2000-11-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. ON SOME VEHICLES THE ENGINE CRANKS BUT DOES NOT START OR STARTS AND STALLS. *TT |
| 180500A | 2000-09-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING 1998 MODEL YEAR ENGINE SPARK KNOCK. *TT |
| 180500 | 2000-09-29. 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 |
| 090500 | 2000-04-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. EXPERIENCING SPARK KNOCK AND ENGINE OIL CONSUMPTION DUE TO INTAKE MANIFOLD PAN GASKET OIL LEAK. *TT |
| 180100 | 2000-04-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SUBJECT REGARDING MISDIAGNOSED LEAK DETECTION PUMP SYSTEMS WITH DIAGNOSTIC TROUBLE CODES P1494, P0442 P0455, OR P0456. *TT |
| 183597 | 1999-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. CONDITION WITH SAGGING OR HESITATION WHILE ACCELERATING FROM A STOP WITH A COLD ENGINE OR AFTER A PARTIAL COOL DOWN. *AK |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.