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Service bulletin 1802101

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 id623159
Published by NHTSA2001-10-26
Manufacturer's number1802101
Manufacturer's date2001-09-17
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

INFORMATION REGARDING ENGINE PERFORMANCE ENHANCEMENTS.*SLC

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 DURANGO2001
JEEP GRAND CHEROKEE2001

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

Recalls for the same vehicles and component
20020742002-04-17. Engine

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
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.
18031032003-11-11. Service bulletin. 4.0L ROUGH ENGINE IDLE AFTER RESTART FOLLOWING A HOT SOAK. *TT
09003032003-10-23. Service bulletin. 4.0L MULTIPLE CYLINDER MISFIRE. *TT
11002012001-11-29. Service bulletin. SOME VEHICLES MAY EXHIBIT A HISSING SOUND WHEN WATER FROM THE EVAPORATOR DRAIN DRIPS ON THE EXHAUST. *TT
1802101A2001-11-29. Service bulletin. SUBJECT REGARDING 4.7L ENGINE PERFORMANCE ENHANCEMENTS. *TT
09003012001-10-05. Service bulletin. THIS BULLETIN REINFORCES A REQUIREMENT TO CEASE THE CURRENT PRACTICE OF USING SUPPLEMENTAL OIL ADDITIVE TREATMENTS IN ALL DAIMLERCHRYSLER ENGINES. *TT
25004012001-07-11. Service bulletin. SUBJECT REGARDING ADDITIONAL DIAGNOSTIC FOR DIAGNOSTIC TROUBLE CODES CAUSED BY AN EVAPORATIVE SYSTEM LEAK. *TT
09003012001-07-11. Service bulletin. THIS BULLETIN REINFORCES A REQUIREMENT TO CEASE THE CURRENT PRACTICE OF USING SUPPLEMENTAL OIL ADDITIVE TREATMENTS IN ALL DIAMLER CHRYSLER ENGINES. *TT
18022002001-03-08. Service bulletin. SOME VEHICLE ENGINES MAY EXHIBIT A LIGHT TO MODERATE SPARK KNOCK CONDITION DURING ACCELERATION (UNDER LOAD). *TT