Q: Car is overheating and building pressure in top water hose

asked by on

First problem i noticed was that the car will over heat after 10 minutes of driving but if i accelerated or revved the engine the temp will go down. This worked for about a month, then i popped the radiator, so i changed it out for a new one. This time it worked fine for 1 day then it over heated every 5 minutes and built a lot of pressure/steam from my top hose, the revving did not work any longer. So i changed out the water pump, thermostat, thermostat sensor, and all hoses. It worked for one day then it started to over heat again, i would go only 3 mins then temp will go all the way to read, engine will be cold but the top hose very hot. I would have to bleed the radiator to bring down the temp. I then changed the dorman heater hose assembly which was in bad condition and worked for one day again. The next day it will heat up then cool down when i accelerate. I bleed the line so no air is in the radiator, just dont know what to do anymore. The car sat for 1 year before this happen

My car has 113358 miles.
My car has an automatic transmission.

Other possible causes of overheating include failed head gaskets that allow exhaust gases to leak into the cooling system, a major blockage in a cooling passageway, a failed radiator pressure cap, non functioning radiator cooling fans and poor engine running condition. There are tests that can detect exhaust in the coolant to rule that possibility in or out. If you desire that the root cause of the engine overheating 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?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Car is overheating and building pressure in top water hose

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: Head gasket, alternator, engine

I would recommend getting a quote for each of these repairs and comparing it to an engine replacement. It would be hard to tell without seeing the vehicle firsthand whether or not repairing those two items will resolve the problem....

Q: How to fix my transmission

Hi there. In order to answer your question, we need a bit more information from you such as what symptoms you're experiencing, if your transmission is leaking fluid or if it is working at all. Let us know what problems...

Q: Temp.gauge going to hot blowing cold air heat not working replaced radiator and thermostat still overheating 2005 Infiniti G35

Hi - sounds like you may have multiple problems with your engine cooling and passenger heating systems. It is possible that the cooling system has not been bled properly, and there is a large pocket of air in the engine/heater...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...