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I will need either the engine size or the VIN.
You are looking for anything that is blocking flow to the rad, if the fins are bent, some trash or debris blocking it. The thermostat is cheap, 25 or so and there are no free options for information, but as part of this I will post the instructions.
J 38185 Hose Clamp Pliers
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten Tighten the bolt and the stud to 27 N·m (20 lb ft).