# Service bulletin CSN\-K20

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: 10034071
- Published by NHTSA: 2010\-10\-15
- Manufacturer's number: CSN\-K20
- Manufacturer's date: 2010\-09\-01
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM

## NHTSA's summary

RAM/DODGE JEEP SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE ENGINE WATER PUMP ON CERTAIN VEHICLES MAY LEAK COOLANT. ENGINE OPERATION WITH A LOW COOLANT LEVEL COULD CAUSE ENGINE DAMAGE OR LOW CABIN HEATER OUTPUT. CSC LETTER WAS REC'D. \*PE

## 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, Cooling system

## Vehicles listed

- DODGE DAKOTA
- 2010 DODGE NITRO
- 2010 DODGE RAM
- 2010 JEEP LIBERTY

## Other bulletins for the same vehicles and component

- [05191925A](/bulletins/10149006.md), 2018-11-26, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. 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.

JSON: [/v1/bulletins/10034071](/v1/bulletins/10034071)

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