Q: My car is smoking but not overheating, and burns a lot of oil.

asked by on

My 2003 Jeep Liberty is smoking but not overheating. There is only smoke coming from the passenger side of the car. It also uses a lot of oil but I read that the oil is a problem with the 3.7L Engine. It usually uses a quart every 2 weeks. There is a burning smell then it starts to overheat. If you have any answers it would very helpful.

My car has 123000 miles.
My car has an automatic transmission.

Hi and thank you for contacting YourMechanic. There are two things to look for.

First is the exhaust smoke blue? If it is that indicates that the piston rings are worn and the engine needs to be rebuilt. Oil is leaking by the ring and burning on the combustion stroke causing the blue smoke.

Secondly, you state its only smoking on the passenger side, check and see if the valve cover is leaking and oil dripping down on the exhaust and burning. Check and make sure that the valve cover bolts are snug, if they are then the valve cover gaskets will need to be replaced.

If you’d like to have this looked at, consider YourMechanic, as we can send a certified technician to you, inspect the smoking conditionn, and make any necessary repairs.

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. My car is smoking but not overheating, and burns a lot of oil.

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 MDX has 107K miles, what major service is needed, if any?

There is no scheduled, or Acura recommended, 100,000 maintenance service interval for your vehicle. Instead, virtually all maintenance required for your vehicle is tracked by the vehicle computer (a "maintenance minder" system) and reported, using letter and number codes, via...

Q: No air coming out of vents

Hi There, Your car should not overheat if there is no air coming out of the vents since the blower motor function is not related in any way to your cooling system. The air not coming out of the vents...

Q: My oil light came on way before it usually does after getting a battery replaced.

It could be that the service reminder was affected by having the battery disconnected for a short time. These days, it is wise for a technician to hook up an alternative power source while changing the battery to prevent memory...

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...
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...
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...