Skip the auto shop - Our mechanics make house calls

Q: My car is losing coolant from tailpipe

asked by on

last week my car started smoking from under the radiator reservoir tank and smoke from tailpipe. my mechanic said the head gasket is blown . I put a product called k seal and it worked good for a couple of days now the smoke is coming from under reservoir but less from tailpipe the heat level gauge has been normal the whole time even when there was a lot of smoke from tailpipe the car was shaking a little before mechanic said the head gasket problem affected a piston now not shaking as much check engine light was on now is off I think it might just be a bad thermostat the cars reservoir is now full not losing fluid as fast please respond at your earliest convenience thank you sir

My car has 180000 miles.
My car has an automatic transmission.

Hi there. According to what you’ve described, it does sound like your mechanic was correct; a blown head gasket. The radiator reservoir leak may have lead to the blown head gasket by causing a low coolant level, thus resulting in the blown head gasket from a coolant jacket to the combustion chamber. The coolant entering the combustion chamber will cause a misfire and set the Check Engine Light. With enough coolant in the combustion chamber, engine mechanical failure will occur with damaged internal components.

The radiator, head gasket, and thermostat would need to be replaced and a coolant flush service done to remove any of the K-Seal product; these products are only temporary solutions at best. If you’d like a second opinion on this issue, have one of our mobile technicians diagnose the smoke firsthand.

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

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: How do I use the console box in a 2012 Toyota Camry?

You can access the center console for storage or use it for an armrest for you or your passenger. Pull up on the lever located on the front of the center console. Lift the lid at the same time....

Q: Truck won't start, just brought a new battery last week and had the alternator checked and it was good...won't start

You should first try to put the shifter in neutral to see if it cranks over? If not then test to see if the starter is getting a start signal from the ignition switch? If it is then replace the...

Q: I just put in a new ECM in my 1999 Dodge avenger now it rough idels and shifts hard or lags

It is very likely that an ECM reflash will be necessary to resolve this issue. When the ECM gets replaced, the vehicle essentially loses all of its memory. The reflash will program the ECM to your vehicle allowing it to...

Related articles

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...
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...