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NHTSA Recall 04V159000: Pressure relief devices (fuel system)

MACK TRUCKS, INC reported this safety recall to NHTSA on , covering an estimated 317 vehicles. It affects 3 models including the Mack Ch.

317
vehicles potentially affected
3
models affected
2004
owners notified (April 6)
NHTSA campaign04V159000
Manufacturer campaignSC0287
ComponentFUEL SYSTEM, OTHER › STORAGE › TANK ASSEMBLY › PRESSURE RELIEF DEVICES
Report receivedApril 7, 2004
Owner notificationApril 6, 2004
Initiated byManufacturer

Defect

On certain chassis built with lng engines, the nexgen lng tank's primary and secondary relief valves could fail to open and relieve tank pressure.

Safety risk

This could cause ice buildup on the discharge side of the primary and secondary pressure system allowing the relief system to freeze and become blocked resulting in over pressurization of the lng tanks creating the risk of catastrophic tank rupture which could cause serious injury or death.

Remedy

Dealers will retrofit the lng tanks with a new primary relief valve pipe away tube and a new ventilated shroud. The recall began april 6, 2004. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1-610-709-3337.

Notes

Mackrecall no sc0287.customers can contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-DOT (1-888-327-4236).

Vehicles covered by recall 04V159000

Make and modelModel years
Mack Ch1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Mack LE1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Mack Mr1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.