Where is block heater cord on 2007 Chevrolet Silverado?

The block heater cord on a 2007 Chevrolet Silverado is typically located on the driver's side of the engine block, near the bottom. It's often tucked up somewhat out of sight. You might need a flashlight to see it clearly. Look for a heavy-duty cord that plugs into an electrical outlet.

However, not all 2007 Silverado models came with block heaters. Whether yours has one depends on the trim level and where the truck was originally sold (colder climates were more likely to include them).

If you can't find it after a thorough search in that area, check your owner's manual. It should show a diagram of the location if your truck is equipped with a block heater. If it's not in the manual, it's highly likely your truck doesn't have one.