My 2000 Chevy Tahoe fuel guage has not been working for weeks. Now my engine is overheating. I am told it might be the fuel pump. I do let the gas run very low before refilling. Can my engine overheat from a hot fuel pump?

Engine overheating from low fuel

chunky_azian April 18, 2009, 8:09pm 10

I’m no chemistry major, but for some reason, a lean burning mixture leads to high combustion temperature. So low fuel can possibly lead to overheating.