IK1200969 - Engine Valve (ETV) Page 1 of 2

Countries: CANADA, UNITED STATES, MEXICO Document ID: IK1200969 Availability: ISIS, FleetISIS Revision: 0 Major System: ENGINES Created: 10/4/2013 Current Language: English Last Modified: 10/4/2013 Other Languages: NONE Author: Josh Bowman

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Title: Engine Throttle Valve (ETV)

Applies To: 2010 - Current Maxxforce 11/13L

DESCRIPTION

The ETV - Engine Throttle Valve is now authorized to be replaced without troubleshooting when a DTC 51-7 (ETP does not agree with and there are no other faults commanded position) is found ACTIVE related to the ETV stored in the ECM. NO diagnostic time will be paid by warranty for DTC 51-7 as a standalone code in the ECM.

Note: This concern is currently under investigation and the contents of the article are subject to change at a later date.

PARTS INFORMATION

Part # Description Qty.

3005375C1 Is used with the HORIZONTAL AIR THROTTLE DUCT ONLY 1 3005374C1 1 Is used with the VERTICAL AIR INTAKE THROTTLE DUCT ONLY 1 3013488C1 ENGINE THROTTLE VALVE

REPAIR PROCEDURE

Please see the repair manuals for removal and replacement procedure of the ETV. MaxxForce 11/13 - Service Manual

Please also note that boost leaks at the Engine throttle to head joint have been observed in the field, particularly on CAT SS vehicles.

® The current seal between the Engine throttle duct and cylinder head is RTV: that is, Wacker 442, Loctite 5900 Sealant, or equivalent.

RESOLUTION

application. Navistar has released an engine throttle valve gasket (P/N: 3013488C1) to replace the RTV (Room Temperature Vulcanization)

either of the following In circumstances,

 Whenever there is an exhaust leak, or to be serviced for any  Whenever the engine throttle valve is removed from the engine other reasons,

Use a scraper to remove the RTV application at the engine throttle (if not done already), and install the engine throttle valve gasket (P/N:

3013488C1).

The following pictures show the joining surfaces at the engine throttle and the cylinder head, with the RTV still to be removed.

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