What does a bad coolant temperature sensor do to a car?
If the coolant temperature sensor goes bad it can send a false signal to the computer and throw off the fuel and timing calculations. It is not uncommon for the coolant temperature sensor to fail and send a permanently cold signal to the computer.
How often does a coolant temperature sensor go bad?
about 100,000 miles
Often, the engine coolant temperature sensor must be replaced at about 100,000 miles. If you don’t properly maintain the engine cooling system, the sensor could fail much earlier.
How do you replace a temperature sensor on a Jetta?
Loosen your coolant reservoir cap to release any built up pressure, then tighten the cap back up. By doing this you create a vacuum seal so when you pull out the bad sensor very little to no coolant will leak out while you are making the swap.
How to replace a temperature sensor MkIV VW?
Make sure your car is completely cooled down. Loosen your coolant reservoir cap to release any built up pressure, then tighten the cap back up. By doing this you create a vacuum seal so when you pull out the bad sensor very little to no coolant will leak out while you are making the swap.
How long does it take to replace a temperature sensor?
Seeing how the repair will only take most people about ten minutes (thirty at the very longest) this could even be done before you go to work. Another benefit of waiting till the car is bone cold is it will leak very little coolant while swapping out the sensor.
Is it OK to replace temperature sensor while car is still hot?
Another benefit of waiting till the car is bone cold is it will leak very little coolant while swapping out the sensor. If you want to attempt this DIY while your car is still hot use google to find instructions for that method and print yourself out the directions to your local burn victims unit just in case.