Gasoline Fuel Additive For Clogged Fuel Injectors (SSM46917)

Publication date: 2011-03-24
Reference number: SSM46917

GASOLINE FUEL ADDITIVE FOR CLOGGED FUEL INJECTORS

TECHNICAL SERVICE BULLETIN

Reference Number(s): SSM46917, Date of Issue: March 24, 2011

LAND ROVER:	LR3; LR4
CATEGORY:	Engine
SYMPTOM:	499000 Basic Engine

ISSUE

Fuel injectors clogged, (applicable to 4.0 Cologne, 4.2 AJV8, 4.4 AJV8 and 5.0 AJ133 Gasoline Engines), leading to potential problems such as poor running, poor fuel economy, hard starting, rough idle, misfires and engine detonation. Customer symptoms may include the engine check lamp illuminated which maybe accompanied with a misfire/engine vibration at idle. Misfire codes (P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0316) are stored in the PCM dependent on the affected cylinder(s).

CAUSE

Poor fuel quality or fuel contaminants restricting the fuel injector flow rate.

ACTION

NOTE: If an injector concern is apparent in the vehicle's first 1000 miles/1600 kilometers Land Rover recommend the injector is replaced and a Quality Concern EPQR raised.

Land Rover engineering now approve the use of BG 44K Power Enhancer Cleaner (which is sold in an 11oz/325ml can or bottle).

Further information on the additive can be found on the BG Products website http://www.bgprod.com/products/fuelair.html

BG Distributors are located throughout the World as detailed on the BG Website http://www.bgprod.com/bgdistloc/distloc2.php worldwide

As no Land Rover part number exists for the BG Additive specified in this communication the net cost of the amount involved (less taxes) maybe claimed using a ZZZ 001 part number. If required further information regarding ZZZ 001 can be found in the Warranty Manual section G1.2.

USA/Canada ONLY - As an alternative to BG 44K you may use the existing fuel system conditioner available from Land Rover Parts, part number LRN5010.

The above mentioned additive(s) should be used in the first instance in an attempt to cure a suspected 'clogged' injector (misfire DTC maybe stored) rather than unnecessary replacement. Please follow all instructions on the product labeling prior to use. Please clear all stored diagnostic trouble codes prior to releasing the vehicle.

NOTE: Land Rover recommends only using the above products a maximum of twice every 15,000 miles or 24,000km's

When all Engineering work has been concluded a Technical Bulletin will be issued to replace this interim SSM.