Q: When idling it over heats but when I press on the gas and bring the rmps up they suddenly drop and my car cools down?

asked by on

When idling it over heats but when I press on the gas and bring the rmps up they suddenly drop and my car cools down also when it over heats my air goes hot to it has a new radiator and a new thermostat

My car has 173842 miles.
My car has an automatic transmission.

When you accelerate the engine, although you are adding heat, the water pump also spins faster increasing coolant flow through the engine and to the radiator. Perhaps there is an issue with the water pump and/or the water pump drive belt performing poorly at idle. If you do replace the water pump, use an OEM pump in case you have to perform further diagnostics on the overheating (aftermarket parts do not always work as well as OEM parts). The most common causes of overheating include low coolant level, a faulty thermostat, a plugged radiator, a faulty radiator pressure cap, collapsed hoses, non functioning cooling fans, and a faulty water pump or drive belt. Certain engine faults, such as a leaking head gasket or poor engine running condition can also cause overheating. If you desire that this problem be diagnosed by a certified Mechanic, dispatched by YourMechanic right to your location, please request an engine overheating diagnostic and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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. When idling it over heats but when I press on the gas and bring the rmps up they suddenly drop and my car cools down?

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: Hyndai elantra P2196 P2096

Hi there. Typically these codes are caused by an exhaust leak, clogged injectors, or intake vacuum leak. If problems just happened to start after getting fuel, then you may have a purge valve leaking excessive fumes into the intake when...

Q: Variable tumble control system, not really sure how to pinpoint what I need to do. Someone told me I need a new spark delay valve

There is a Mazda Technical Service Bulletin (TSB) involving the Variable Tumble Control System (VTCS) on your model. The issue in the TSB involved the mitigation of noise caused by the system and that mitigation involved re-programming of the controls....

Q: My car lacks power, the acceleration doesn't seem to be there and there has been a few times where my car had trouble starting.

Hi there. I understand your concern and have experienced this feeling myself once my vehicle had some mileage. How often is the maintenance performed? When was the last time the air filter, spark plugs, oil, trans, etc. changed? Has the...

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...