Q: Yesterday my heater control valve broke. so I replaced it but it still overheats and there's no heat. Should I replace the t-stat

asked by on March 09, 2017

New radiator and heater control valve but truck is overheating and blowing cold air no heat. Will replacing the thermostat resolve this issue?
My car has an automatic transmission.

You will need to have the a/c controls in the heat position when filling up the cooling system to get out all the air in the system. You may need to replace the thermostat if the engine was overheated bad you may have blown a headgasket. Once all ait is out of the system check for overheating. You may need additional work to fix the overheating if the engine was allowed to get too hot when the valve broke.

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

1991 Ford F-250 needs ignition switch reinstalled

Sounds like someone bypassed the factory ignition switch circuit. This indicates there was a problem with the circuit to begin with. The lock cylinder would need to be physically relocated to the steering column. Then, the ignition switch circuit would...

Advice on buying a used Ford Taurus

I would definitely stay clear from cars from the '90's. A lot of them had horrible transmissions. They weren't that great cars. Lot of them rusted out, too. But for a 2000's car, the later ones and mid-to-late ones can...

Squealing noise, runs bumpy over 50 mph - 2005 Mercedes-Benz ML500

Hi! A good place to begin is with a thorough visual inspection performed on your Mercedes. Squealing sounds under the hood frequently come from accessory belts. This can be due to age or a worn tensioner. That's one of those...

Tail lights suddenly not working.

You have a broken brake light switch connector wire. The green wire with a red stripe goes to the brake lights and will cause the brake lights not to work. You may also have a problem with the turn signal...

Esp warning light came on after washing car.

Hi there. Check the ABS controller for any bare wires or loose connectors. What may have happened is the controller could have gotten wet and caused a terminal to short due to the water. If everything is dry, then the...

How do I check power steering fluid in a 2012 Ford F-150?

Your truck is equipped power steering. This helps the power steering fluid get pumped through the steering gearbox and turn the wheels easier. To check the power steering fluid. Run the engine to normal operating temperature. Turn the...

Trucks starts up but have to give gas to keep running then dies starts up a second time then it will stay running.

It sounds like you may have a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...

my car jerks and seems like it wants to shut down when im at a red light and i roll the windows up lights seem to dim out

This sounds like it could be two separate problems. You may have been on the right track with the battery, but if the voltage drops while the engine is running, that sounds more like a charging system problem. It might...

Bought a car on Ebay, car runs kind of rough and there is a strong smell of gas

The ticking noise is from the valve train. Exhaust from any car of that vintage, no matter how well tuned, is going to be very noticeable and remarkably worse than a modern car. As far as the rough idle, compression...

Related articles

The Best Used Cars to Buy for First Time Car Owners
Owning Owning your very first car is an exciting time in a person’s life. Likely you want to put a lot of thought and research into the process to ensure you get something that meets your needs, is fun to...
The Best Used Cars to Buy If Your Kid's On the Soccer Team
If If you are a soccer mom (or dad), you know that you need a lot of space to transport your budding World Cup contenders, along with their gear. From time to time, you can also expect to be bringing...
A Buyer’s Guide to the 2012 Ford Escape
CUVs CUVs (Crossover utility vehicles) are becoming more and more popular these days, as consumers are interested in saving money and buying more eco-friendly vehicles but they still have a lot of people and cargo to move around. CUVs like...