Gmc W4500 — Powertrain
High risk
May 17, 2017
Model years: 2008, 2009
On certain vehicles with gasoline powered engines, the accelerator pedal could move laterally, allowing the accelerator pedal bracket to be hung up on the stopper bolt on the floor
Also affects: Gmc W3500, Isuzu Npr Gas, Isuzu Npr Hd Gas
Gmc W4500 — Fuel System
High risk
Oct 23, 2015
Model years: 2008
Certain vehicles with gasoline powered engines may be equipped with a fuel tank that could prematurely corrode and leak. A fuel leak in the presence of an ignition source could inc
Also affects: Gmc W3500, Isuzu Npr, Isuzu Npr-Hd
Gmc W4500 — Electrical
High risk
Jun 19, 2013
Model years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
On certain vehicles equipped with an oil pan heater, over time, dust, dirt and moisture may collect at the contact point between the oil pan heater cord and the extension cord. As
Also affects: Gmc W3500, Gmc W5500
Gmc W4500 — Engine
High risk
Dec 17, 2010
Model years: 2006, 2007
On certain vehicles, the bolt that connects the engine lubrication oil pipe to the vacuum pump may not have been tightened properly during vehicle assembly. If not adequately tight
Also affects: Gmc W3500, Gmc W5500
Gmc W4500 — Other
High risk
Jan 28, 2009
Model years: 2008, 2009
On certain trucks, the propeller shaft may not have received adequate heat treatment during the manufacturing process. As a result, the shaft may break and fall off while the vehic
Also affects: Gmc W3500, Gmc W5500, Isuzu Npr, Isuzu Nqr, Isuzu Nrr
Gmc W4500 — Fuel System
High risk
Jun 6, 2008
Model years: 2006, 2007
On certain trucks, the fuel pump may develop a diesel fuel leak as a result of improper assembly process at the factory. Fuel leakage, in the presence of an ignition source, could
Also affects: Gmc W3500, Gmc W5500
Gmc W4500 — Fuel System
High risk
Apr 25, 2005
Model years: 2003, 2004
On certain diesel powered vehicles, water and/or salt intrusion into a fuel switching manifold solenoid for the optional dual fuel tank system may cause the manifold to fail. If on
Also affects: Isuzu Nqr, Isuzu Npr, Chevrolet W4500, Chevrolet W5500, Gmc W3500
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