Will a bad coolant temp sensor cause no heat?
If the coolant temperature sensor malfunctions, it could cause your car engine to get overheated. The computer will again miscalculate the signal and cause the engine to heat up instead of cooling it down. When this happens, the car might misfire, or it could lead to engine knocking.
Why does my car’s temp gauge read erratically?
A small air pocket around the sensor can have really erratic effects on the “gauge” temperature. Especially if the sensor is in the very top of a housing, where air may accumulate. Some thermostat housings have a small bleed screw to make this easier.
Is it bad to have air in your coolant system?
Air inside the coolant system is a very bad thing because it can cause overheating of your engine, which can cause severe damages to your engine. Air can come into the coolant system if the coolant level was once very low or if you replaced any parts in the coolant system recently.
How long does it take to fill a car radiator?
Start the vehicle and fill the radiator with the proper coolant mix. Idle the vehicle for a length of time… this could be as much as 30 minutes or more with some vehicles. Observe the coolant in the neck of the radiator fill. If there are small bubbles bursting, it isn’t bled yet.
What should I do if my radiator is overheating?
Observe the coolant in the neck of the radiator fill. If there are small bubbles bursting, it isn’t bled yet. Keep adding coolant mix to keep all radiator fins covered – just below the filler neck. When the bubbles stop, cap the radiator BEFORE you turn the vehicle off.
Is the temperature gauge hot but not overheating?
Temperature gauge hot but engine is not overheating. have the same problem? Have you checked your coolant level lately? I would start there. helpful? The temperature gauge can show hot without the engine overheating which still means that is a problem. To tell for sure if it is a gauge or a cooling system problem use a
When to check coolant level in the radiator?
If you have 2 fans when you turn on ac both should be running. Also check coolant level when cool in the radiator and make sure it is full. Also are you sure you have a proper coolant to water mix?
A small air pocket around the sensor can have really erratic effects on the “gauge” temperature. Especially if the sensor is in the very top of a housing, where air may accumulate. Some thermostat housings have a small bleed screw to make this easier.
What to do if your coolant is boiling but not overheating?
If there is a small exhaust gas leak into the cooling system, then shouldn’t a mechanic be able to put an emissions probe into the top of the radiator opening and sniff it? It would also show small bubbles with the cap off and the hot engine running. Thanks.