Q: Q: My car over heated

asked by on

So for a few weeks my car suddenly started to over heat when ever my car was idle for too long like if i were to be at a red light. The needle would jump all the way over but once i started driving again, after a while it would go back to normal. I recently got my oil change and asked the mechanic what he thought could be wrong but he didnt check anything out only told me i most likely needed a new thermostat. Well i didnt really have the money to get a more indepth check up and one day while waiting in a McDonald's line way too long, the car basicly exploded and overheated. After waiting for almost an 1 i started it up and was able to drive half way home until it cut out again. Only this time right before cutting out there was a loud clank noise.3 waits later i got it home. Now im being told by family it may be the radiator. Cant really afford to get it towed so im seeking out the possible problem and how I myself and check to see whats wrong.

My car has 200 miles.
My car has an automatic transmission.

The first thing to do is to remove the serpentine belt off the engine and see if you feel the water pump pulley move around and if it does not turn very good. The water pump may be bad.

Try and start the motor to see if it still starts and runs. If not, you may have damaged the engine from overheating it. Run it for no more than a minute with the belt off. If the engine starts and runs smooth, then you may not have damaged it yet.

Next, have the radiator pressure tested to see if it is leaking using a radiator pressure tester after filling the cold engine. You will then be able to see where the leak is. Replace anything that is leaking and replace the water pump and thermostat. If the radiator is busted, then replace it and the cap.

If you would like some help with this, a qualified technician from YourMechanic can come to your home or office to diagnose your overheating issue and quote the best path to repair.

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
  1. Home
  2. Questions
  3. Q: My car over heated

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

Q: Truck idling high

Hi there. You may need to have the carburetor adjusted or you have a binding throttle high idle choke linkage. A major vacuum leak can be something that can lead to having a high idling vehicle. A primary cause for...

Q: Loud exhaust, might be a leak?

The noise you are hearing is coming from the exhaust resonator. There is a technical service bulletin (TSB) 11-001-15 dated January 28, 2015 that calls for the inspection of your resonator for a small drain hole at the back of...

Q: I have a 2005 Chevrolet Uplander, the radiator, water pump, coolant sensor and thermostat have been replaced. It still overheats w

You need to verify if the electrical cooling fan is coming on when the temperature gets up to or above normal range. if fan does not come on then this is the cause of the overheating and will need to...

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 Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...