# Service bulletin 1803203

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.

- Type: Service bulletin
- NHTSA id: 10003987
- Published by NHTSA: 2003\-11\-11
- Manufacturer's number: 1803203
- Manufacturer's date: 2003\-09\-12
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

## NHTSA's summary

ERRONEOUS DIAGNOSTIC TROUBLE CODES \(DTCS\) READING TO 4.0L OXYGEN SENSOR HEATER FAILURE. \*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, Exhaust and emissions

## Vehicles listed

- 2004 JEEP GRAND CHEROKEE

## Other bulletins for the same vehicles and component

- [9003215](/bulletins/10229181.md), 2023-01-09, Service bulletin: ENGINE AND ENGINE COOLING. Part Description: 5.7L Long Block Issue Description: This 5.7L Long Block Assembly is compatible with both EGR and Non\-EGR applications. An EGR Block\-Off Plate \(53032739AA\) must be ordered when installing this Long Block Assembly in a Non\-EGR application. Unless, the EGR Block\-Off Plate is being transferred from the old engine.
- [05191925A](/bulletins/10228094.md), 2022-12-19, Service bulletin: ENGINE AND ENGINE COOLING. Radiator If vehicle comes in for transmission fluid leaking from trans\-oil cooler fittings on the radiator, please perform the following before replacing the radiator/cooler:\~ 1. Remove both of the transmission lines from the cooler?s top/bottom flared fittings on the radiator. \~ 2. Remove hex nut and the top flared fitting on the radiator tank.\~ 3. Using a wire brush and gasket remover, clean off the old sealant on the smaller threaded portion of the flared fitting. Do the same for the threads on the trans oil cooler.\~ 4. Apply a new application of Mopar PN 04318032 to the flared fitting, leaving the first threads free for ease of engagement.\~ 5. Install the top flared fitting by hand, then torque the fitting to 235 \+/\- 15 Lb\-In.\~ 6. Install the hex nut and torque to 100 \+/\- 10 Lb\-In.\~ 7. Repeat steps 2\-6 for bottom flared fitting.\~ 8. Reinstall transmission line per normal installation procedures and ensure correct fluid level.\~
- [9003215](/bulletins/10223602.md), 2022-10-17, Service bulletin: ENGINE AND ENGINE COOLING. Part Description: 5.7L Long Block Issue Description: This 5.7L Long Block Assembly is compatible with both EGR and Non\-EGR applications. An EGR Block\-Off Plate \(53032739AA\) must be ordered when installing this Long Block Assembly in a Non\-EGR application. Unless, the EGR Block\-Off Plate is being transferred from the old engine.
- [R2118796A](/bulletins/10191460.md), 2021-05-03, Service bulletin: ENGINE AND ENGINE COOLING. Valve Body. These may cause over drive cycling.
- [05191925A$](/bulletins/10181452.md), 2020-10-26, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING; POWER TRAIN. Radiator If vehicle comes in for transmission fluid leaking from trans\-oil cooler fittings on the radiator, please perform the following before replacing the radiator/cooler:\~ 1. Remove both of the transmission lines from the cooler?s top/bottom flared fittings on the radiator. \~ 2. Remove hex nut and the top flared fitting on the radiator tank.\~ 3. Using a wire brush and gasket remover, clean off the old sealant on the smaller threaded portion of the flared fitting. Do the same for the threads on the trans oil cooler.\~ 4. Apply a new application of Mopar PN 04318032 to the flared fitting, leaving the first threads free for ease of engagement.\~ 5. Install the top flared fitting by hand, then torque the fitting to 235 \+/\- 15 Lb\-In.\~ 6. Install the hex nut and torque to 100 \+/\- 10 Lb\-In.\~ 7. Repeat steps 2\-6 for bottom flared fitting.\~ 8. Reinstall transmission line per normal installation procedures and ensure correct fluid level.\~
- [05191925A$](/bulletins/10121923.md), 2017-11-03, Service bulletin: POWER TRAIN; ENGINE. Radiator If vehicle comes in for transmission fluid leaking from trans\-oil cooler fittings on the radiator, please check the following before replacing the radiator/cooler:\~ 1. Remove both of the transmission lines from the cooler?s top/bottom flared fittings on the radiator. \~ 2. Loosen the hex nut on the top flared fitting on the radiator tank.\~ 3. Torque the top flared fitting to 235 \+/\- 15 Lb\-In.\~ 4. Torque hex nut to 100 \+/\- 10 Lb\-In.\~ 5. Repeat for bottom flared fitting.\~ 6. Reinstall transmission line per normal installation procedures and ensure correct fluid level.\~ \~ If vehicle is in need of a new radiator for another reason, check the new radiator for correct torque on the trans\-oil cooler fitting per steps 2\-5 above.\~ \~ If radiator has a yellow mark by the trans\-oil cooler fittings the torque does not have to be checked.
- [0900205](/bulletins/10015804.md), 2005-08-12, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL WEEPAGE AT THE ENGINE OIL FITLER ADAPTOR HOSE CONNECTION\(S\). \*TT
- [05002](/bulletins/10015075.md), 2005-05-18, Service bulletin: ENGINE AND ENGINE COOLING. NEW WATER PUMP FOR 3.7L ENGINE \- NO LONGER COMMON WITH 4.7L. ADVANCED SERVICE INFORMATION \#05\-002. \*TT
- [0900105](/bulletins/10013774.md), 2005-04-26, Service bulletin: ENGINE AND ENGINE COOLING. CYLINDER HEAD BOLT RE\-TORQUE PROCEDURE. GPOP \- ISSUE REVIEW SYSTEM. \*TT
- [1804504](/bulletins/10011928.md), 2005-02-07, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. WARM ENGINE ROUGH IDLE. 4.7L. \*TT

JSON: [/v1/bulletins/10003987](/v1/bulletins/10003987)

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