Q: Q: Jerking reaction

asked by on

My car usually runs hot , but it was because of a low coolant level , I found the hose connected to the radiator was leaking and it leaked under the hood, I fill my reservoir back and my radiator now my car is jerking at 20 mph ???
My car has an automatic transmission.

Hi There, If the hose is still leaking causing coolant to be lost and the vehicle continues to overheat, this could potentially result in a head gasket being damaged causing a cylinder misfire, which may cause the jerking reaction you are describing. A blown head gasket may cause a number of different symptoms. A head gasket that fails between cylinders will generally cause a misfire and potentially compression leaks from one cylinder into another. Low compression will eventually result in a rough idling engine. When the head gasket fails between a cylinder and the coolant port, coolant may leak into the cylinder causing it to be burnt with the fuel charge in the combustion chamber. This often results in misfires on startup, especially after the engine is run, turned off and restarted. This type of failure may not always show with a compression test. I would recommend having an expert from YourMechanic come to your location to properly diagnose the vehicle.

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: Jerking reaction

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: Gas gauge needle fluctuates up and down

This may possibly be a faulty fuel tank sending unit. This is a float type designed sending unit that sits inside your fuel tank that monitors the fuel level inside the tank. When this is faulty or failing it can...

Q: Check Engine Light is on. Car idles high when put in drive or reverse and engine stalls when too much gas is applied.

Is there also a loud hissing or sucking noise and maybe a lean code stored in the engine control computer? The high idle sounds like there may be a problem with the idle air control valve or there may be...

Q: Car doesn't start - fast clicking noise. I attached portable battery / car "jumper" system. Clicking goes away but doesn't start

Hi there. When you jump start a car, the correct procedure is to attach the red line to the positive battery terminal and the black line to the negative battery terminal. This completes the electrical circuit. It is possible that...

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...
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...