Q: Water from the radiator is going to the expansion tank which then overflows causing engine to overheat.
Water from radiator is going into expansion tank which then overflows causing car to overheat. Heaters inside car not working.
My car has 111000 miles.
My car has an automatic transmission.
Recommended Services
| Car is overheating Inspection | $94.99 - $114.99 | Get a Quote |
Hi there. There could be three things that could be causing your engine to overheat and the heater to not work.
- (1) The thermostat could be stuck shut or causing the cooling system to not flow making the engine overheat and the heater not get any flowing coolant
- (2) The water pump could have failed or have sludge on it causing the coolant to not cycle making the engine overheat and the heater to not get any flowing coolant.
- (3) One or both head gaskets could have burned causing the engine to leak coolant into the combustion chamber making the engine overheat and the cooling system to boil over with exhaust gases entering the cooling system.
If you have checked all three areas and you are unable to locate the issue of why the engine is overheating and why the heater is not blowing warm, then I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose your overheating issue.
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
What others are asking
Check Engine light repeatedly lights up no matter what
There is an original equipment manufacturer (OEM) campaign 14515b that is calling for the chassis control module. The module has a problem that it has corrosion internally causing random check engine lights and possible engine stall or fail to start....
After I start my car it makes a weird noise.
We need to determine what type of noise the car is making (https://www.yourmechanic.com/services/car-is-making-a-noise-inspection), and in what area of the engine or transmission the noise is coming from. From my experiences most noises come from the belt or pulleys on cars...
What causes the key fob to not work?
The key fob will not work under the following circumstances: 1. The key fob battery is dead. 2. One or more of the doors is not properly closed. 3. A key is in the ignition. 4. The key fob is...
Grinding sound in front driver's side over bumps.
It sounds like you have a failed strut (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-strut-assembly). I would have the front strut and sway bar checked to see if they are bad. If you have a bad strut then I suggest replacing both front struts at the...
car shakes when accelerating
From what you've described, it sounds like you may have a bad bearing in the front end or an axle that's causing the problem when added weight is applied to the car. I'd suggest having the complete front end and...
10% of the time, car won't start when rainy weather
Hello. The symptoms you are describing are commonly caused by ignition system problems with moisture. Old or worn ignition wires, or a cracked or leaky distributor cap, can cause the vehicle to experience hard starting. In wet weather, moisture can...
I have a check engine light on due to the catalytic converter. Can I still drive?
Hi, thanks for writing in. I'd be happy to offer my insight about your catalytic converter warning light (https://www.yourmechanic.com/article/what-does-the-catalytic-converter-warning-light-mean-by-spencer-cates). The catalytic converter as you may know is what converts toxic exhaust gases into less harmful materials to be expelled into...
Can you drive a car with a bad throttle body?
From your post I presume that you have checked the codes and got a throttle body code. The car may still seem to be okay and you want to know if it is safe to drive. The answer is: probably....
Air conditioner blows warm air.
The most common cause for warm air when the air conditioner is commanded on is a low refrigerant charge, usually from a leak. One way to check the charge is to have a technician attach a manifold gauge set and...
Related articles
How Often Does My Car Need a Radiator Flush?
A A radiator is part of the internal combustion cooling system in a vehicle. It is a form of heat exchanger, designed to transfer heat from the heated coolant mixture as it flows through the vehicle. Radiators operate by pushing...
How to Use Engine Block Sealer to Repair a Head Gasket Leak
Head gasket leaks occur when engines overheat and can be costly to repair. Engine block sealer can be a quick and easy alternative for minor cases.
How to Replace a Coolant Tube
The bypass hose in the coolant system may have failed when the coolant level is low and there is a visible leak underneath the vehicle.
Browse other content
Cities
Maintenance
Services