Q: My reservoir is boiling is that indication of needing a thermostat 2007 Nissan Pathfinder

asked by on

Needing to know why is my reservoir boiling with steam coming out

Hi there - while it is possible that the thermostat is keeping your engines operating temperature too high (coolant temp gauge should always be in the middle of the gauge), the steam and boiling water out of the reservoir could also indicate that the radiator is simply not getting rid of engine heat as effectively as it should be. In either case, there is enough latent heat in the engine to boil coolant to steam as you are experiencing. I recommend an engine overheating inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. My reservoir is boiling is that indication of needing a thermostat 2007 Nissan Pathfinder

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: Transmission mount

Hello. The best way is to do a visual check and look for any cracks or sagging of the rubber in the mount. Putting the vehicle on a lift may help to see it better. The motor mounts are checked...

Q: My Mercury Mountaineer 2003 will not start.

Hello, thank you for writing in. What sensor was unplugged when you started the vehicle? You will want to consider this sensor and the different systems that it may provide information to. Without that information the computer may have shut...

Q: Warning lights come on after battery replacement

Hello. It sounds like the PCM (powertrain control module) and the BCM (body control module) have malfunctioned because of a shortage in the battery system. This could have happened when the battery failed, was removed, or installed. One explanation for...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.