Rick's Free Auto Repair Advice

Posts Tagged: car overheats

Car overheats troubleshooting tips

How to diagnose a car overheats condition When your car overheats you can easily narrow down the possible causes by following this guide. Overheating can be caused by: Low coolant Inoperative radiator fans or improper radiator fan speed (some fans are variable or multi-speed) Worn water pump Clogged radiator Stuck closed or partially closed thermostat Coolant Restriction somewhere in the cooling system. Start by checking coolant level Low coolant levels can cause all kinds of problems, so start by checking the coolant level at the reservoir. Then check radiator fan … Read More

Car overheats — common causes

Car overheats—6 most common causes Here are the six most common causes of car overheats condition Radiator fan not working Faulty thermostat Low on coolant due to leaking hose, radiator, heater core or water pump Faulty water pump Clogged radiator Damaged head gasket Inoperative or wrong speed radiator fans can cause car overheats condition Most late-model vehicles have several electric radiator fans that run at different speeds depending on the cooling needs of the engine. GM, for example, uses two fans that can run at two speeds. If you’re driving … Read More

Engine overheats — how to diagnose

Engine overheats — What to check Engine overheating can be caused by many things. But 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 car is overheating 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

Most common causes of engine overheating

Most common causes of engine overheating Here are the most common causes of engine overheating Low on coolant Bad thermostat Inoperative radiator fan Clogged radiator fins Clogged radiator Worn out water pump Damaged head gasket Check coolant level first if your engine overheats Low coolant makes the car overheat at idle but the temp gauge may show lower temps at highway speeds. At idle, the water pump rotates at a slower speed, and with less coolant in the system, it overheats. But at highway speeds, the water pump runs at … Read More

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