Car not overheating but I have coolant boiling in the res...

Q: Car not overheating but I have coolant boiling in the reservoir tank. I have to add about a quart of coolant to the radiator ever

asked by on October 01, 2017

Car not overheating but I have coolant boiling in the reservoir tank. I have to add about a quart of coolant to the radiator every week. I've replaced the waterpump, hoses, radiator cap. Did a coolant flush and refilled with Toyota coolant. There is no visible leaks. I'm not seeing any white or blue smoke come out of the tail pipe. No coolant in the oil and none on the oil dipstick. What can be the problem?

My car has 240600 miles.
My car has an automatic transmission.

If you are getting low on coolant and have bubbles going into the overflow bottle then you most likely have a blown head gasket. It does not always put out smoke from tailpipe. You will need to have system pressure tested and checked for compression to verify the leaking head gaskets.

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

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

I have a small indentation on my bumper. What is the best way to get it out?

Hi there. There are a few tricks you could try like using compressed air to get the dent out (if it's not too big). There are also some products out there that claim to be able to remove dents. Check...

Hola quisiera saber donde se encuentra la valvula pcv de una hummer h3 modelo 2006

Hi Antonio. If you're looking for information about installing or replacing a PCV valve on your 2006 Hummer, please click this link. Gracias.

Car will not start - 2006 Volvo S40

Hi and thanks for your question. There are three things that could cause this situation. Your vehicle could have a failed starter, a failed fuel pressure regulator, or a break in the wire from the ignition switch to the starter...

Related articles

Scion Certified Pre-Owned (CPO) Car Program
If If you have been shopping for a used Scion vehicle, you may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on...
A Buyer's Guide to the 2012 Scion xB
If If you want an SUV because of the spacious interior, the 2012 Scion xB is a great choice. It’s easily one of the most affordable on the market. Key Features The four-cylinder power on the 2012 Scion xB may...
Understanding the Scion Maintenance Required and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Scion Maintenance Required light indicates when your car needs service.