Fixing a Leaky 5.3 Valley Cover Gasket
If you've noticed oil pooling in the middle of your engine block, there's a good chance your 5.3 valley cover gasket has finally given up the ghost. It's one of those repairs that sounds more intimidating than it actually is, but it's definitely something you want to handle before your driveway looks like an oil slick. The 5.3L V8 is a workhorse, found in millions of Silverados, Sierras, Tahoes, and Suburbans, but even the best engines have their weak points. After enough heat cycles and miles, that rubber seal under the intake manifold gets brittle and starts letting oil seep out. ...