Q: Reservoir coolant boiling.

asked by on January 19, 2016

Sometimes the coolant in the reservoir starts to boil.I check the hoses and they aren't hot or stiff from too much pressure. Also, the temperature falls within good operating temperatures.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I use the front reading lights?
The front reading lights are available so that you can have light in the cabin of your vehicle even when it is dark out. They also double as the courtesy lights when your car is unlocked. The front reading lights...
How do I reset the Tire Pressure Monitoring System?
Your truck is equipped with a Tire Pressure Monitoring System. This system lets you know when your tire pressure is getting low. To reset the Tire Pressure Monitoring System. Drive the vehicle over 20 mph for 2 minutes. Park the...
Catalytic converter replacement.
This would depend on the code that is retrieved from the check engine light. It never hurts to get a second opinion. I would recommend having another technician, such as one from YourMechanic, come to scan your vehicle for trouble...
Spark plug blew out
Spark plugs blowing out are not uncommon for that specific year and engine of the vehicle. When a spark plug blows out, usually the threads need to be repaired, or replaced, and a new spark plug installed. This job may...
Transmission fluid is leaking out and the speedometer is not working.
Many common faults will cause your 1997 Ford F-150 to have a transmission leak and a speedometer that does not function. Transmission leaks can occur in various areas but the most common are the pan gasket, output seal, sensor seals,...
BMW 3 series vs Audi Q7 (2007)
Hi Kamil. Unfortunately, both vehicle's you've chosen are on the higher end of costs for routine service and maintenance. Believe it or not, there are some great cars like Nissan Altima's, Kia Optima's or Honda Accords that have significantly improved...
After replacing water pump, thermostat
Overheating has many causes. If you just added coolant after replacing the water pump and thermostat, but did not use the purge points to expel trapped air, that in itself could be the cause. Trapped air in cooling systems causes...
The gasket is deteriorated in the intake manifold gasket
If the gasket does have to be replaced it is replaced as a "whole". There is no partial intake manifold gasket. Please note that the code you are writing in about, Diagnostic Trouble Code P0171 (https://www.yourmechanic.com/article/p0171-obd-ii-trouble-code-system-too-lean-bank-1-by-andrew-quinn), can set for many...
I have a Chevy Malibu 2013 with 75757iles on it jeering forward while idling and pushing on gas but not after I accelerate and eng
What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds...

Related articles

How to Buy a Good Quality Gasket
There There are a wide variety of gasket types on a typical vehicle, from head gaskets which are installed between the cylinder head and the engine block to engine gaskets which seal out harmful elements and keep the engine safe...
How Long Does a Low Water Sensor Last?
The The heat that is produced by your engine can be quite harmful if not cooled down. There are a variety of systems in your car that are designed to make sure that the internal temperature of your engine stays...
How to Replace a Fan Clutch
A fan clutch controls the car engine cooling fan and operates on temperature. It's mounted to the water pump and can cause overheating if it's broken.