Dealing with Your LLY Thermostat Issues
Swapping out an lly thermostat isn't exactly how I'd choose to spend a Saturday afternoon, but if your Duramax is starting to run hot or—even worse—won't warm up at all, it's one of those jobs you just can't ignore. The 2004.5 to 2005 LLY engines are legendary for a lot of reasons, but their cooling systems are definitely high on the list of things owners love to complain about. ...