Q: My car overheats within 20 minutes of driving. A goo jelly like substance is overpouring from the radiator. The top is cracked.

asked by on

My car is overheating, with goo jelly like substance overpouring. The radiator top is cracked. What should I do to fix this? Drain completely and start over?

My car has 120000 miles.
My car has an automatic transmission.

It sounds like you have been using the wrong coolant for your engine or the transmission cooler is leaking transmission fluid into the coolant. Either way you need to replace the cracked radiator and flush out the system with clean water and coolant flush after you put in the radiator and thermostat. Make sure to use only GM-approved coolant.

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. My car overheats within 20 minutes of driving. A goo jelly like substance is overpouring from the radiator. The top is cracked.

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: I am being told my water pump is bad in my 2002 Sequoia. My car's temp gauge was maxed out and in the red. I am also being told

Yes this is correct. The timing belt needs to come off to replace the water pump to prevent coolant from leaking into the timing belt rubber which will cause it to fail. If you would like more information on timing...

Q: When should you replace the brake and transmission fluids?

Different manufacturers have different recommended service intervals for their vehicles. Recommendations for fluids can usually be found in the vehicle owner's manual. At minimum, the manufacturer recommendations should be followed. That's not to say doing some maintenance items a little...

Q: Hesitation occasional misfire and poor mpg

The MAF is a possibility. I think it is also possible that one or more injectors are clogged or malfunctioning as the symptoms you describe sound like that of a fuel system issue. I would recommend having the fuel injectors...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...