* Multiple Engine Options: GMC 1500s in 1988 offered various engine choices. Some common ones were:
* 5.0L (305 cu in) V8: A standard gasoline engine.
* 5.7L (350 cu in) V8: A more powerful gasoline engine.
* 6.2L (377 cu in) V8 (Diesel): A diesel option.
* Vehicle Identification Number (VIN): The easiest way to know for sure is to check your vehicle's VIN. The 8th digit of your VIN will tell you the engine code.
* You can find your VIN on your registration, title, or on a metal plate inside your driver's side doorjamb.
* Other Ways to Find Out:
* Owner's Manual: If you have the original owner's manual, it will likely list the engine size.
* Engine Bay: Look for an engine tag or sticker in the engine bay. It may list the displacement (e.g., 5.0L, 5.7L).
* Online Resources: You can use resources like AutoZone or Carfax to enter your VIN and get details about your vehicle, including engine size.
Let me know if you have your VIN, and I can try to help you decode the engine code!
