1. Serpentine Belt Adjustment:
The 1997 Chevy Blazer likely uses an automatic tensioner for the serpentine belt, meaning you generally don't adjust it manually. There's no adjustment screw or mechanism to tighten or loosen it. If the belt is worn, cracked, or slipping, you need to replace it, not adjust it.
* To replace the serpentine belt: You'll need a new belt (make sure you get the correct size!), and potentially some tools like a socket wrench, ratchet, and possibly a belt tensioner tool (though some can be done by hand with leverage). Consult a repair manual specific to your 1997 Chevy Blazer for detailed instructions on how to route the belt and release the tensioner. This is a moderately involved task, and it's often easier with a jack and jack stands for better access. Improper replacement can damage the engine, so proceed carefully or seek professional help.
2. Seat Belt Adjustment:
Seat belt adjustment varies depending on whether you're referring to the:
* Shoulder Strap Height: Most 1997 Chevy Blazers have a mechanism to adjust the height of the shoulder strap. Usually, there's a lever or button on the belt's retractor housing (where the belt retracts into). Push and hold this while moving the shoulder strap up or down to your preferred height. It will then lock into place.
* Lap Belt Tightness: The lap belt's tightness is adjusted by simply fastening it snugly around your waist. Make sure it fits snugly across your hips, not your stomach or chest. A too-loose lap belt greatly reduces its effectiveness in an accident.
Important Considerations:
* Repair Manual: A repair manual specific to your 1997 Chevy Blazer (Chilton's or Haynes are good options) is highly recommended for any work on your vehicle. It provides detailed diagrams, torque specifications, and procedures that will make the job much safer and easier.
* Safety First: Always disconnect the negative battery terminal before working on any automotive system. Use jack stands for safety when working under the vehicle.
* Professional Help: If you're uncomfortable working on your vehicle, take it to a qualified mechanic. Incorrectly replacing a serpentine belt can lead to engine damage.
If you can clarify which belt you are trying to adjust (serpentine or seat belt), I can provide more specific instructions.