Skip the auto shop - Our mechanics make house calls

Q: Car shuts off when the weather is hot

asked by on

My car seems to be shutting off every time it gets hot outside.The dashboard is now showing the check engine light on. There is also the code indicating the cam sensor issue. During the cold months, there are no issues whatsoever. But when I went on a longer trip about a year ago when it was really hot, the car shut down on me several times. I restarted it each time and it immediately started up, but soon shut off again. I had the fuel pump replaced. The fuel filter is new as well as the coolant valve. Other than that, when I remove the gas cap, there is usually no air release. Also, when I fill the gas tank at the station, it won't fill it properly, as it reports as being full. What could be causing these issues?

A: Hello. A bad cam position sensor will cause...

Hello. A bad cam position sensor will cause a Check Engine Light to come on and possibly cause a stall or no start condition for your 2000 Mercury Mystique. Cam position sensors usually develop their problems when hot, so this is likely why you don't experience any issues during the colder months. The gas tank not filling up properly could be due to a clogged EVAP system. A clogged EVAP system can also cause a Check Engine Light. I suggest that you have a technician inspect the EVAP system of the gas tank for clogging, as well as check other systems, in order to diagnose your stalling issue. Also, have the technician retrieve codes for the Check Engine Light and monitor the live data of the EVAP system and cam position sensor.

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 lost power & stalled while driving on interstate - 2016 Hyundai Genesis

Hey there. I would recommend letting them diagnose the problem rather than just simply telling them to replace the fuel pump. The vehicle is under warranty since it is a 2016 model. For Hyundai warranty to pay the dealer for...

Q: Check engine light comes after a long trip. OBD II scanner gives the code P0015. What would be the cause?

Hi there. The code P0015 is stored for the camshaft position sensor has recorded that the timing is excessive retard. The sensor could have failed due to oil deposits leaking onto the sensor, the variable valve timing sensor has failed,...

Q: Electrical - 2007 Mercury Montego

Hello - based on the documentation I have available, fuse #48 is for the fog lights. Perhaps there is a short in the wiring? If so, It is more than likely near the bulb itself, since that area is exposed...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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.