Skip the auto shop - Our mechanics make house calls

Q: My car will not start - 2003 Toyota Matrix

asked by on

Oil and antifreeze are mixed. And the intake manifold was full of oil. Oil was all over the place.

My car has 110000 miles.
My car has an automatic transmission.

A: Hi there. Unfortunately, once there is oil ...

Hi there. Unfortunately, once there is oil and coolant mixed, there is the possibility of a cracked cylinder head/block or a blown cylinder head gasket. This is a serious condition as the internal damage generally snowballs into worse; the main & rod bearings get damaged, etc. Has the car overheated? This sounds like catastrophic engine failure. The engine will need to be replaced, but we may not know for sure until an inspection has been performed. Unfortunately, YourMechanic does not offer engine replacement services.

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: hesitation when accelerating and shaking when in idle

Hey there. A proper diagnosis at a repair shop is the only way to be certain. If the spark plugs have not been changed in 40,000 miles or more, the car would benefit from replacing them. But any number of...

Q: ABS brakes grab (driver front) upon stopping.

Hey there. As you know, your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS system which is controlled by the car's ECU. When...

Q: My battery is not fully charged and gradually decreasing with decrease in temperature in my 2012 Prius

Hello. Most of the time this is caused by a programming issue. I have seen these cars need to be re-programmed for issues with the batteries not fully charging in cold weather. If the vehicles computer have not been updated...

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...
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.