1995-2004 Mack CH, Mack LE and others recall: pressure relief devices

Mack Trucks, Inc reported this safety recall on April 7, 2004. It covers about 317 vehicles.

vehicles affected: 317
reported: Apr 7, 2004
owners notified: Apr 6, 2004

Fuel system, other: storage: tank assembly: pressure relief devices

What is wrong: 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.
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.

Recall number 04V159000

Affected vehicles

Mack CH 1995-2004 1997 1998 1999 2000 2001 2002 2003 2004
Mack LE 1995-2004 1997 1998 1999 2000 2001 2002 2003 2004
Mack MR 1995-2004 1997 1998 1999 2000 2001 2002 2003 2004

Questions about recall 04V159000

Is there a recall on the 1995-2004 Mack CH, Mack LE and others pressure relief devices?

Yes. Recall 04V159000, reported on April 7, 2004, covers about 317 vehicles.

What is the fix for recall 04V159000?

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.

Is the recall repair free?

Safety recall repairs are done free of charge at authorized dealers. A dealer can confirm with the VIN whether a specific vehicle is included and whether the repair has already been done.

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