Engine overheating and steam from vents also when i loose...

Q: Engine overheating and steam from vents also when i loosen the screw on engine air comes out for about 30 seconds

asked by on June 07, 2017

There was a gurggling sound. Changed the radiator cap and that sound is gone. Is making a hissing sound though. Sounds like it is comming from the defrost. Still overheating and steam comming from vents

Hello, Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, a clogged radiator or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working properly, this can cause the fans to come on intermittently, all the time or sometimes not at all. When this happens you will notice a temperature spike and drop occasionally as the fan comes on and off. When your thermostat is not working properly or is stuck closed, this will not allow the coolant to properly circulate through the engine, which may cause the engine temperature to fluctuate erratically or in some cases just remain hot. You may also have a water pump that is beginning to fail. Water pumps often times will begin to produce a bit of a whining sound when they are starting to fail. A common problem also associated with this is the water pump may begin to leak around the water pump shaft due to the seal being damaged. In addition to leaking around the pump, you may have a leak elsewhere in the cooling system coming from one of the hoses going to or from the radiator. Lastly, you may have a failing cylinder head gasket allowing coolant to leak from the water passages into the cylinders resulting in the coolant being burnt in the combustion chamber with the fuel. If this is the case, you may also notice a bit of white smoke coming from your exhaust which is a product of the coolant being turned into a steam like vapor. I would suggest having an expert from Your Mechanic come to your home to diagnose your cooling system.

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

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

When I stop and then start to accelerate the car jumps and lunges and doesn't seem to increase speed as it should.

Hello. Thank you for writing in. Typically vehicles jump and surge due to spark or fuel issues. The computer is designed to keep the engine running within certain ranges, and when the vehicle doesn't have what it needs, it will...

Why is my car dying as im driving down the road.

If you are getting the car to die going down the road, then see if you are losing spark to the spark plugs. If so, then check the distributor to see if you are getting oil in it or a...

How can I be sure it is fuel pressure reg and not the pump?

If you suspect the fuel pump is not pumping enough pressure then you will need to have a fuel pressure test with a fuel gauge to check to see if the pressure is high enough or not. You can have...

Related articles

Understanding the Buick Oil Life System and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Buick Oil Life System indicates when and what service your car needs.
The Best Used Cars to Buy for Towing Light Loads
Towing Towing is tricky business and depending on the weight you’re dealing with, it really determines what vehicle is best for you. If it’s light loads you’re looking at towing, we’ve put together a list of the top five cars...
A Buyer’s Guide to the 2012 Buick Enclave
The The 2012 Buick Enclave was created specifically for younger buyers and those with growing families who have a taste for luxury. The Enclave is available in four levels which include: base, convenience, leather, and premium. It has ample room...