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fuel pump unit replacement guide | Auto Technician

A tapping or whistling sound during cold starts on your GMC Sierra 1500 can signal a cracked seal caused by broken exhaust manifold bolts. Heat cycles, towing, and salted roads often weaken those bolts, letting exhaust escape and creating that sharp noise—or even a faint exhaust smell. Haynes shows you how to remove the exhaust manifolds, replace the gaskets, and take care of the manifold bolts while you're in there. The latest print manual also includes full digital access for easy reference an

The 2015 GMC Sierra 1500 faces notable issues, including 4WD system problems affecting off-road capabilities. Fuel gauge malfunction arises from a failing sensor, providing inaccurate readings. Transmission concerns manifest as rough shifting and unusual noises. Explore two additional problems and DIY solutions at haynes.com! #HaynesManuals #HaynesShowsYouHow #GMCProblems #2015GMC Sierra1500 #VehicleMaintenance #Sierra1500Issues #CarTroubleshooting | Haynes Manuals