Here's what the gauge looks like my 2001 2500hd, and you can see what it indicates as being too hot, this being said, the hottest I've ever seen it is about 180 in the summer, unloaded.
Directions. 1  In a Dutch oven, cook ground beef and onion until meat is no longer pink and onion is tender; drain. 2  Add the next eight ingredients; bring to a boil. 3  Reduce heat; cover and simmer for 1 hour, stirring occasionally. 4  Remove the bay leaf. 5  Serve with spaghetti. 6  Garnish with oregano if desired.
Cook and drain spaghetti as directed on package. While spaghetti is cooking, cook bacon in 3-quart saucepan over low heat 8 to 10 minutes, stirring frequently, until crisp. Remove bacon from saucepan with slotted spoon; drain. Drain fat from saucepan, reserving 1 tablespoon in saucepan. Cook onion and garlic in bacon fat over medium heat about 3 minutes, stirring frequently, until onion is tender. Stir in spaghetti, chicken, cheese and whipping cream. Cook, stirring occasionally, until heated through. Toss with bacon.