1991 Isuzu Pickup Problems
RepairPal has identified the most common problems with the 1991 Isuzu Pickup based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.
The heater core may leak coolant, excess coolant loss can result in engine overheating. Our technicians tell us a revised, copper heater is available to replace the original aluminum one.