Posts Tagged: engine overheats
Engine overheats — how to diagnose
Engine overheats — What to check If your engine overheats, here are the most common causes. To diagnose it properly, we need a bit more information. • Is it overheating at highway speeds, or • Is it overheating in stop and go traffic, or • Does your car overheat only when stopped and idling? First things to check if your engine overheats in city driving or at stops. #1 Check your coolant level. If there’s no coolant in the reservoir, you’ve got a leak or a head gasket problem where … Read More
Engine Overheats – GM vehicles
Engine Overheats No radiator fans on GM vehicles, Chevrolet, Impala, Pontiac, Buick, Cadillac GM uses a pretty nifty technique to control the radiator fans on late model vehicles. The system consists of two fans and three relays. When the powertrain control module (PCM) detects the need for cooling from the engine coolant temperature sensor (ECT) at 223 degrees or refrigerant pressure above 190-psi., it provides a ground signal to the low speed fan relay. Power flows to one fan, and the ground for that fan flows to the second fan. … Read More
Common Causes of Engine Overheating and How to Fix Them
Learn the most common causes of engine overheating and how to fix them Engine overheating is one of the most common mechanical failures, and it can lead to catastrophic engine damage if not addressed promptly. While overheating can sometimes be caused by a major problem component failure, it is most often caused by smaller issues that cascade into a larger temperature spike. Let’s look at some of the top causes of overheating and how you can prevent these hot-tempered meltdowns. Here are the most common causes of engine overheating Low … Read More