Setting up a high idle switch for Duramax trucks
If you're tired of waiting forever for your truck to warm up in the winter, installing a high idle switch for Duramax engines is probably the best weekend project you can tackle. It's one of those modifications that costs very little—sometimes just the price of a toggle switch and some wire—but makes a massive difference in how your truck handles daily life, especially if you live somewhere that actually gets a real winter. ...