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What can happen if you have the wrong coolant temperature sensor in your car?
Wiki User
∙ 12y ago
If the sensor goes sometimes it will think it is VERY cold outside like when mine went it thought it was -192 F so it will put tons of gas in the engine to keep it running at that temperature so you will have horrible mileage
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoWell, temp senors work by changing their resistance as the engine warms up, or cools down. If you have a wrong temp sensor, you can make your car run richer or leaner. Rich=more fuel being used
Lean= Less Fuel being used
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What is wrong if the cooling fan comes on when the coolant sensor is unplugged but when it is plugged in the fan and AC will not work?
I have seen this before more than likely your coolant sensor has a internal short and needs to be replaced.
Your temperature gauge indicates overheating but water and oil levels are fine and heater works what is wrong?
If you are absolutely sure you do not have air trapped in your cooling system then you may have a defective gauge if you are getting heat through your heater. Usually I would say you have a coolant flow problem with either a stuck thermostat or a bad water pump but if you have heat from your heater, then you must have circulating coolant in your system. I would check the gauge or the sensor.
Radiator fan comes on right away when you turn the car on?
It may be that the engine coolant temprature sensor has gone faulty. It may well be sending the wrong signal to the ECM causing the ECM to think the engine is hot when in fact the engine is cold.
What does a bad sensor in a car transmission do?
A bad sensor can cause the vehicle to shift at the wrong time or not at all.
On a 1997 Subaru Impreza When it is cold out side it will not start as soon as it warms up there is no problem starting what could be wrong?
Suspect a defective temperature sensor-- the one that talks to the car computer. It is not telling the computer it is cold outside, and not enough fuel is added to allow startup when cold. Suggest replace the temp sensor.
Why does the Check coolant light come on my 1997 ford escort?
Your reservoir may be low. This will trigger the coolant light. It is often a malfunctioning sensor and nothing is actually wrong with the cooling system or coolant. It can be easily replaced. Alternatively you can leave it, but monitor your engine temperature and coolant level.
Your coolant temperature goes up at low speeds and the fan will not come on in your 1994 fire bird what is wrong?
Either the fan motor or the sensor needs to be replaced. or your thermostat is stuck.
What could be wrong with an Aurora if it overheats a lot but only when going over 65mph Besides EGR valve?
bad thermostat, engine coolant temperature sensor(ect). not enough coolant. radiator is pluged up try flushing,or replace radiator.
87 Nissan Pathfinder starts fine but when it warms up and kicks down from a fast idle it begins to run rough and stall. What is wrong?
Coolant temperature sensor. 20 bucks or so
What is wrong if the cooling fan comes on when the coolant sensor is unplugged but when it is plugged in the fan and AC will not work?
I have seen this before more than likely your coolant sensor has a internal short and needs to be replaced.
What could be wrong when a car will run rough on acceleration and stall when near stop but does not happen all the time 1993 Dodge Spirit V6 Fuel Injected?
possibly the coolant temp. sensor
My 1996 Mazda 626 is running hot what could it be?
There are several possible reasons for your 1996 Mazda 626 running hot. It could be due to a malfunctioning thermostat, a failing water pump, a clogged radiator, low coolant levels, or a faulty cooling fan. It's best to have a mechanic diagnose the issue to determine the exact cause.
What will happen if you use the wrong coolant in recharging your central air unit?
It will not work right.
96 4x4 s10 blazer won't prim it self What is wrong with it?
Try replacing the engine coolant sensor.
What will happen if there is no si unit?
human will get wrong calculate of temperature
96 4x4 s10 blazer won't prim it self What is is wrong with it?
Try replacing the engine coolant temp sensor.
What could be wrong with your car when the temperature gauge is running hot?
Possibly a leak in the coolant reservoir bottle.
