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Service bulletin 0700401

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 id620917
Published by NHTSA2001-09-04
Manufacturer's number0700401
Manufacturer's date2001-07-20
Replaces070300
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

A CONDITION MAY EXIST WHERE THE ENGINE COOLANT TEMPERATURES MAY RISE HIGH ENOUGH TO CAUSE THE CHECK GAUGES LIGHT TO ILLUMINATE, INDICATING HIGH ENGINE COOLANT TEMPERATURE. *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
JEEP WRANGLER2000, 2001

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
R2118796A2021-05-03. Service bulletin. Valve Body. These may cause over drive cycling.
09010042004-05-03. Service bulletin. DIRT AND DEBRIS ACCUMULATION AT REAR MAIN SEAL. *TT
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
0700401A2002-03-07. Service bulletin. EXPERIENCING HIGH ENGINE TEMPERATURES DUE TO EXTENDED IN-GEAR IDLING IN HOT AMBIENT TEMPERATURES. *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
18013012001-07-11. Service bulletin. SOME VEHICLE ENGINES MAY EXHIBIT A ROUGH IDLE AND / OR MALFUNCTION INDICATOR LAMP (MIL) LIGHT ON CONDITION UPON INITIAL START-UP AFTER A COLD SOAK WHEN TEMPERATURES ARE BELOW 50 DEGREES F (10 DEGREES C). THIS BULLETIN INVOLVES SELECTIVELY ERASING AND REPROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH NEW SOFTWARE. *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
8591/85922000-05-09. Service bulletin. SUBJECT REGARDING THE ON-BOARD DIAGNOSTIC (OBD) SYSTEM ON ABOUT 309,000 VEHICLES LOCATED OUT OF CALIFORNIA AND VEHICLES LOCATED IN CALIFORNIA WILL NOT DETECT A CATALYST FAILURE AS REQUIRED BY FEDERAL AND CALIFORNIA REGULATIONS. *TT