I had a lot of luck fixxing previous problems on here, figured id try again. I heard the gauges on the newer chevys are crap. That being said, my temperature gauge wont zero completely when the trucks cold. This is makeing my glow plugs run as if the truck were warm when its actually cold. The gauge works, but acts as if 160 is zero. I replaced the ect sensor and that didn't help. Any ideas??