Skip the auto shop - Our mechanics make house calls

Q: my coolant becomes empty after two days of filling it up

asked by on

My coolant light came on and I filled it to the top. Two days later it came back on and under my car was leaking fluid. I went into jiffy lube and they said they couldn't discover a leak after refilling it back up. It is now two days since my visit there and coolant light is back on and nearly empty. My tempature is becoming 230 regular after driving only 10/15 miles. I don't know a lot about cars or who to go too. Im suspecting a leak (i know jiffy lube workers are not mechanics) What do you think the problem is? And where should I go?
My car has an automatic transmission.

A: You have a leak. The only question is where...

You have a leak. The only question is where. YourMechanic will pressurize the cooling system when COLD which should reveal the leak without too much trouble. A common leak would be through the water pump bearing weep hole, especially if your pump is old. If the water pump is leaking you will need a new water pump (not an unusual job) and then a re-test for any additional leaks. If water pump is replaced and the thermostat is adjacent you should put in a new OEM GM thermostat.

Coolant can leak "internally" too. That would be a problem as repair of internal leaks is much more costly. So I would suggest having one of our mobile technicians come to your home to diagnose the source of the coolant leak. Hopefully it will be a simple water pump repair or a loose or damaged coolant hose. Best of luck.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

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: Leaking coolant

First of all I'm glad to hear you are just using water. I always advise customers to use just water if they are experiencing a leak and can't get it fixed right away. My question is did the pressure gauge...

Q: How much will it cost to repair a gas leak. This is a Cadillac STS 2002 with only thirty thousand miles?

Sent CS a billing question regarding repair to a fuel leak after running something over.

Q: what would cause my transmission oil pan to fail and expell the entire contents of oil?

The only way something like this can happen is for the pan to get damaged or the front input seal to blow out, causing it to pump out all the fluid through the bell housing. If you'd like to have...

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...