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Service bulletins for the 1998 Mercury Mountaineer

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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
127552000-11-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. SOME VEHICLES BUILT BEFORE 1/1/1999 EQUIPPED WITH 5.0L ENGINE MAY EXHIBIT A FRONT ACCESSORY DRIVE (FEAD) BELT NOISE. *TT
115302000-08-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. WHEN DIAGNOSING CRANK / NO START ON CERTAIN VEHICLES EQUIPPED WITH PASSIVE ANTI-THEFT (PATS) CHECK THE CUSTOMERS KEY RING FOR ANY MAGNETIC OBJECTS LIKE THE MOBILE SPEEDPASS KEY WHICH MAY AFFECT THE SIGNAL TRANSMISSION BETWEEN THE PATS KEY AND THE VEHICLE TRANSCEIVER. *TT
140482000-07-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES MAY EXPERIENCE AN OIL LEAK AT THE REAR CRANKSHAFT AREA AFTER SERVICE. **MR
84932000-07-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES MAY EXPERIENCE AN OIL LEAK AT THE REAR CRANKSHAFT AREA AFTER SERVICE. **MR
9851482000-06-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES EQUIPPED WITH 5.0L ENGINES MAY EXHIBIT AN UPPER ENGINE TAPPING NOISE ON COLD START. *TT
9851442000-06-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ALL VEHICLES EQUIPPED WITH 4.0L SOHC THAT REQUIRE ENGINE SERVICE PLEASE NOTE THAT THE XL2Z-6M289-AA (DRIVE ASSEMBLY-CAMSHAFT-LH) MUST BE USED ON 4.0L SOHC ENGINES IF REPLACEMENT IS REQUIRED. *TT
9850642000-06-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. REPEAT MESSAGE REGARDING ENGINE STALLING *TT
50492000-06-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. BRIEF INFORMATION REGARDING UPPER ENGINE NOISE. *TT
121502000-06-19. Service bulletin. ENGINE AND ENGINE COOLING. INFORMATION CONCERNING THE REPLACEMENT OF THE ENGINES ON VEHICLES EQUIPPED WITH A 4.0L SOHC THAT REQUIRE SERVICE. *MJS
135272000-05-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES EQUIPPED WITH 4.0L SOHC ENGINES MAY EXHIBIT AN OVERHEAT CONDITION THAT MAY BE ATTRIBUTED TO THE THERMOSTAT. ENGINEERING IS CURRENTLY INVESTIGATING THIS ISSUE AND IS LOOKING FOR THERMOSTATS AND COOLANTS SAMPLES FROM THESE VEHICLES. *TT
9815122000-04-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. A DIRECT REPLACEMENT PART FOR THE EVAPORATIVE EMISSION CANISTER AND BRACKET ASSEMBLY. AK
72702000-03-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES EQUIPPED WITH 4.0L SOHC ENGINES MAY EXHIBIT A VIBRATION / MOAN / BOOM AT IDLE. *TT
71382000-03-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE TIP INFORMATION WHEN SERVICING THE 4.0L SOHC SHORT BLOCK ASSEMBLY. *TT
132602000-03-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE TIPS INFORMATION PROVIDED TO ASSIST WHEN SERVICING VEHICLES WITH SHORT BLOCK ASSEMBLY. *TT
131802000-03-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION REGARDING CAMSHAFT POSITION (CMP) SENSOR ALIGNMENT TOOL CHART. *MJS
131772000-03-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION REGARDING 4.0L SOHC ENGINE REPAIR PROCEDURE UPDATE. *MJS
131722000-03-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION REGARDING SOHC ENGINE NOISE (CAM CHAIN NOISE). *MJS
131712000-03-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION REGARDING 4.0L SOHC ENGINE NOISE (CAM CHAIN NOISE). *MJS
131702000-03-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION REGARDING 4.0 L SOHC CAMSHAFT BOLT TORQUE. *MJS
69972000-03-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME SERVICE MANUALS MAY LIST THE INCORRECT CAMSHAFT POSITION SENSOR ALIGNMENT TOOL FOR VEHICLES WITH VARIOUS ENGINE SIZES. *TT
69932000-03-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING 4.0L SOHC ENGINE REPAIR PROCEDURE UPDATE. *TT
69872000-03-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXHIBIT ENGINE NOISE(CAM CHAIN NOISE). *TT
69862000-03-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION REGARDING 4.0L SOHC CAMSHAFT BOLT TORQUE. *TT
992232000-02-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. A NO START CONDITION WHEN VEHICLE IS PARKED ON AN INCLINE WITH THE VEHICLE IN A NOSE DOWN POSITION AND LESS THAN 1/4 TANK OF FUEL MAY OCCUR. *TT
98109301999-09-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES MAY EXHIBIT AN ENGINE OIL LEAK FROM THE REAR MAIN CRANKSHAFT SEAL. *TT

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