My buddies Jeep was overheating over the summer. A trip to Home Depot, one HVAC vent, and some various hardware later, and no more overheating : r/redneckengineering
Rain Guards Jeep Cherokee
89 Cherokee Napier Hood Vent Install - YouTube
Hood vent rain pans - Jeep Cherokee Forum
Hood Vents - Do they work in lowering temperature? - Team-BHP