1999 Jeep Wrangler Service and Repair Manual

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Factory-Grade Data

1999 Jeep Wrangler service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • Sahara Sport Utility 2-Door
  • Sport Sport Utility 2-Door
  • SE Sport Utility 2-Door

Engines covered

  • 4.0L 242Cu. In. l6 GAS OHV Naturally Aspirated
  • 2.5L 150Cu. In. l4 GAS OHV Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

1999 Jeep Wrangler Recalls & Complaints

NHTSA #06E02200013/03/2006Component: SERVICE BRAKES, HYDRAULIC

CERTAIN AFTERMARKET BRAKE HYDRAULIC MASTER CYLINDERS SOLD AS REPLACEMENT BRAKE CYLINDERS FOR CERTAIN FORD, DAIMLERCHRYSLER, AND JEEP PASSENGER VEHICLES. THESE BRAKE CYLINDERS WERE SOLD UNDER THE BRAN

Consequence

LOSS OF BRAKE FLUID CAN LEAD TO A DECREASE IN BRAKE LINE PRESSURE AND AN INCREASE IN STOPPING DISTAN

Remedy

AFFINIA (BRAKE PARTS, INC.) WILL REPLACE THE SUBJECT BRAKE HYDRAULIC MASTER CYLINDERS FREE OF CHARGE

NHTSA #04E04100007/06/2004Component: EQUIPMENT

BESTOP AFTERMARKET REAR SHELL ROOF RACKS,MANUFACTURED BETWEEN APRIL 27 AND MAY 20, 2004, DESIGNED FOR USE WITH THE BESTOP HARDTOP MADE FOR THE 1986-1995 AND 1997-2003 JEEP WRANGLER. THE COCKPIT COVE

Consequence

SHOULD THIS OCCUR, THE COCKPIT COULD CAUSE INJURY BY STRIKING PERSONS OUTSIDE THE VEHICLE OR COULD B

Remedy

BESTOP WILL NOTIFY ITS CUSTOMERS AND PROVIDE A REPAIR KIT AND INSTALLATION INSTRUCTIONS FREE OF CHAR

NHTSA #06E01100001/02/2006Component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

CERTAIN AFTERMARKET AIRTEX ELECTRIC FUEL PUMPS INSTALLED FOR USE AS REPLACEMENT EQUIPMENT FOR CERTAIN 1997-2004 JEEP WRANGLER; 1997-2001 JEEP CHEROKEE; 1997-2004 JEEP GRAND CHEROKEE; AND 2000-2003 DOD

Consequence

IN THE PRESENCE OF AN IGNITION SOURCE, A FUEL LEAK COULD RESULT IN A FIRE.

Remedy

AIRTEX WILL NOTIFY ITS CUSTOMERS AND WILL REPLACE THE AFFECTED FUEL PUMPS FREE OF CHARGE. THE RECAL

TSB #10229256

KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not program to the vehicl

TSB #10221686

KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not program to the vehicl

TSB #10191460

Valve Body. These may cause over drive cycling.

TSB #10175735

Charging System, Battery Diagnostic Tools and Warranty This information only bulletin discusses using the correct test equipment for testing batteries and charging systems, and also warranty reimbursement when battery replacements are neces

TSB #10175510

DIPAP Requirements - Addition of Jeep Wrangler (JL/JK) and Jeep Gladiator (JT) Hard Top and Targa Top Panel Replacements - All Dealers (Rev. A)

TSB #10220099

Use of Salvage/Recycled Parts This bulletin involves discussing FCA US LLC position with regard to collision repair industry awareness regarding the use of recycled or salvage parts.

TSB #10220101

Use of Aftermarket Parts This bulletin involves discussing FCA US LLC position with regard to collision repair industry awareness regarding the use of aftermarket parts.

TSB #10220097

Repair Parts Used For Structural Repairs This bulletin involves discussing FCA US LLC position with regard to structural repair parts usage.

Showing the 8 most recent of 65 technical service bulletins on file with NHTSA.

20090801Component: ELECTRICAL SYSTEMCrash reportedFire reported

1ST ISSUE: THE DASH GAUGES WILL GO OFF AND ON INTERMITTENTLY. I HAVE FOUGHT WITH THIS PROBLEM FOR YEARS NOW. THE DEALER OF COURSE DOESN'T KNOW WHAT I'M TALKING ABOUT. NEVER HEARD OF IT. I HAVE COMPLET

20020108Component: SUSPENSION:FRONTCrash reported2 injured

VEHICLE HAD TIRES REPLACED AT APPROX. 40,000 MILES, AFTER SEVERAL FRONT END ALIGNMENTS AND TIRE ROTATIONS TIRES SHOWED SIGNS OF UNEVEN WEAR. RECOMMENDED NEW TIRES BE COMPUTER BALANCED AND YET ANOTHER

20111017Component: ENGINE AND ENGINE COOLINGCrash reported1 injured

1999 JEEP WRANGLER. CONSUMER WRITES IN REGARDS TO VEHICLE BEING A LEMON *TGW THE CONSUMER STATED SHE WAS TOLD THE VEHICLE WAS NEW. BUT, IN FACT IT WAS DEFECTIVE AND HAD TO BE REPAIRED SEVERAL TIMES.

20030103Component: SEAT BELTSCrash reported1 injured

I WAS INVOLVED IN A VEHICLE ACCIDENT TRAVELING GOING AROUND 20 MPH. MY JEEP PARTIALLY ROLLED OVER AND I WAS EJECTED, BECAUSE MY SEATBELT DETACHED. I INJURED MY HIP AND BACK AND GOT A 4" LONG DEEP CU

20010713Component: POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCHCrash reported1 injured

VEHICLE WAS IN THE PARK POSITION WHEN GEAR SWITCHED FROM PARK TO REVERSE, CAUSING VEHICLE TO HIT GARAGE. CONSUMER HAD TO BE TAKEN TO EMERGENCY ROOM FOR INJURIES TO KNEE/ EYE AND EARS. PLEASE PROV

Showing the 5 most serious of 262 complaints filed with NHTSA.

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