Skip the auto shop - Our mechanics make house calls

Q: Ran great, died on highway, added 2 qrts, ran 5-6 miles died again

asked by on

Bought a used car, ran great for a week suddenly died on highway. Checked dip stick. Bone dry. Had oil brought to me. Added 2 qrts. Started up, ran for 5-6 more miles, died again. Dry dipstick, no evidence of oil leak.

My car has 170000 miles.
My car has an automatic transmission.

A: You need to check the PCV system and air fi...

You need to check the PCV system and air filter to see if it is clogged. Remove the oil cap and start the motor after you fill the oil and see if you see smoke come out of the oil cap hole indicating broken piston rings. You should see if there is evidence of oil coming out of tail pipe, such as smoke when running or residue in pipe. If you need to have this checked, a certified pro from YourMechanic can come to your location to diagnose the stalling problem and carefully go through the relevant systems.

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・Save up to 30%

Get a quote

What others are asking

Q: Car starting, idling, and then stalling

Hello. If the engine will only run for a short period of time then it may have a failing fuel pump or an electrical issue. Being that you stripped out the fuel filter connections, the metal lines may need to...

Q: Maintaing power in a 1968 Charger

That baby was made for high-test gas. So, you have to buy the best gas you can find. I say use the Shell V-power if you live in the United States. That seems to be the best gasoline for those...

Q: I'm not sure what's wrong or what I need to fix.

Hello, thank you for writing in. The noise may be coming from several components. If the blower motor is failing, the amount of air blowing would likely change. Due to the fact the blower seems to be working consistently, the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...