Q: What would cause my car to rev up and down and overheat immediately

asked by on

My car started to rev up and down this morning but I have been having issues with my radiator, I have recently changed the thermostat cuz the car was overheating . it wad ok til yesterday it overheated within 5 miles and i had just put water in . i also replaced valve cover gaskets , exhaust manifold gaskets .

My car has an automatic transmission.

If your engine was overheated and continues to overheat even after fixing the radiator and thermostat then you may have blown a head gasket. You should have the system pressure tested to see if the head gasket is leaking to see if it needs to have engine repaired.

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. What would cause my car to rev up and down and overheat immediately

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: Squealing noise coming from hood while idling

The situation you are describing sounds like it is probably coming from the throwout bearing on the clutch. These bearing are considered "sealed" units, that don't have provisions for maintenance. Over time, the bearing will accumulate debris, and the lubricant...

Q: I have a 2002 chevy s10 pickup and while im driving 60mph my rpm will go up to 3000 and the engine will tev but the mph stays the

Hi Mari. Thanks for sending your question to us today. In most cases, a lack of acceleration like you're describing is due to the transmission slipping. Sometimes this is due to dirty transmission fluid while in other cases, it's a...

Q: The power steering goes out occasionally, the AC does not work, and the engine loses power.

The O2 sensor has many codes associated with the sensor itself. Some codes can indicate that your engine is running lean and alternatively some can mean that your engine is running too rich. The power steering and A/C have pressure...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.