Q: Car overheating - 1999 Nissan Sentra

asked by on

When I start my car and drive the temperature gauge is fine, but when im at idle it overheats, I replaces the radiator hose and water pump. And when my car does overheat water shoots out the coolant reservoir
My car has an automatic transmission.

This may be a sign of a faulty coolant fan relay. This relay receives input from the coolant temperature sensor which reads the temperature of the coolant in your radiator. As it reaches a certain temperature, the cooling fan relay receives a signal to turn the fans on to help cool down the coolant flowing through the radiator. When your car is moving down the road, the coolant is also cooled down simply by wind passing through the radiator. When it is sitting still, without the help of the wind when the fan is not working properly, it may overheat as you have experienced. I would recommend having an expert from YourMechanic come to your location to diagnose the cooling system so that this can be addressed appropriately.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car overheating - 1999 Nissan Sentra

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Overheating problem reoccurred

Hi there. Due to the added stress and heat, an AC pump puts on your engine it is crucial that your AC fan to work properly. Since the relay has been replaced there is a strong possibility that the overheating...

Q: I am having an issue with a 2011 Aveo where it loses power accelerating and braking/slowing down. The hard part is this is really

The possible causes of this intermittent loss of power include a faulty oxygen sensor, weak fuel pump and/or clogged filter, vacuum leaks, ignition system malfunctions, bad valve timing if the timing belt or chain is worn or skipped, blocked exhaust...

Q: The oxygen sensor is poping up after computer was stolen and installed.

I'm very sorry your car had important parts stolen. Unfortunately, it sounds like the wrong computer was used to for your car. There is no way to make this computer work properly. The number of sensors and systems that must...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...