Performing a 5.7 hemi cam/crank relearn procedure

If you've recently swapped a sensor or replaced your PCM, you probably need to run through the 5.7 hemi cam/crank relearn procedure to get your engine timing back in sync. It's one of those things that sounds a lot more intimidating than it actually is, but if you skip it, your truck or car is going to let you know pretty quickly. Usually, this pops up after you've spent a few hours under the hood replacing a crankshaft position sensor or maybe doing a full timing chain job. You turn the key, the engine starts, but then that annoying "Check Engine" light stays on, or the idle feels just a little bit "off." ...

February 11, 2026 · 7 min · Jonas Liutjen