Skip the auto shop - Our mechanics make house calls

Q: Car still overheats after new thermostat & waterpump, heater blows cold

asked by on

Car ran hot. Local shop changed thermostat, waterpump, & rad cap. Heater blows cold. Bottom rad hose cool, top hose hot. Coolant in tank bubbles.runs smooth. No oil/water mix.

My car has 175000 miles.
My car has an automatic transmission.

A: Hi there. The first thing that comes to min...

Hi there. The first thing that comes to mind is the cooling system was not properly diagnosed and/or the cooling system was not properly bled, after repairs were performed. A cooling system flush could resolve the air trapped issue. I would think, the repair shop would be willing to take another look at your vehicle's overheating issue at no charge, given the vehicle was returned to you supposedly fixed. The bubbles in the coolant could be the result of a head gasket concern, even though there is no oil/water mix. A combustion leakage test should be performed. I recommend having your vehicle's overheating issue be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Engine Misfire

The code #6 you mention is not a recognized code. The engine being hard to start may be from a bad starter, or bad battery. The fuel pressure may be low and the vibration could be caused by bad...

Q: Transmission

Many different components can cause a sound on startup. Engine accessories such as the belt, idler pulley, belt tensioner, and alternator are the most common causes of a noise on startup. Without more information, I see no reason to suspect...

Q: My car keeps stalling at a low RPM when letting off the gas.

These codes are transmission codes having to do with applying hydraulic pressures inside the transmission. When they malfunction, they can cause the transmission to engage at lower RPM's which will cause the motor to die. If your lucky, you will...

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...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.