Q: Radiator cap needs replacing.

asked by on

My vehicle is overheating. It might need a new radiator cap.

If you have a white residue building up just below the cap and you have to add coolant frequently, this could be the issue. The cooling system and cap need to be pressure tested to ensure the system is not not leaking. The waterpump needs to checked to ensure it is circulating coolant. The system needs to be filled and bled to ensure proper cooling system circulation. You may want to enlist the help of a mechanic, like one from YourMechanic, to pressure test and carry out a cooling system performance test.

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. Radiator cap needs replacing.

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: My engine whines. It was low on power steering fluid, but adding did not make it goes away. Does it sometimes take a few minutes 2000 Mercury Villager

Hi there - your whining noise is probably due to air still being in the steering system, which can be removed by turning the steering all the way to the right, then to the left - repeat a couple of...

Q: Q: Horn no longer working.

Hi there. There could be several reason why your horn could have stopped working. Did it happen after you washed your car or after it rained? Water sometimes gets in the horn itself and shorts it out. Do you have...

Q: Non stop jerking when gas pedal is pressed to floor

Hey there, thanks for writing in about your 1999 Ford Escort. You may have to have the vehicle checked for misfires. You could have a bad coil pack putting out weak spark or the fuel pressure is low. It would...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.