Skip the auto shop - Our mechanics make house calls

Q: The car starts fine the first time, but then has difficult startup

asked by on

My car has difficult startup. The first time I turn it on, it starts normally. After that, it has difficulty turning over. Then, I have to give gas. The car is running rich for over a year. I had the fuel regulator sensor replaced. Also, I had the fuel system pressure tested. It is all okay but the problem is still there. What can cause this and how can I fix it?

The O2 Sensors or the Mass Airflow Sensor may be bad. The list can go on. The engine computer will need to be tested and all codes diagnosed. Since you drove the vehicle for a year with it running this way, it could cause other problems like carbon build up in the engine and possible catalyst damage. If the engine is running rich, then there is a reason for this and only a thorough diagnosis of the engine control systems by a qualified mechanic, like one from YourMechanic can isolate the cause. I recommend you contact a technician, to inspect why your car is hard to start before making the necessary repairs.

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: Check Engine Light - Code indicates O2 sensor 1 error

The O2 sensor is a sensor in the exhaust system that reports to your car's computer how much unburnt fuel is in the exhaust gases, which then tells the fuel injection system how to adjust the fuel mixture. When the...

Q: Fuel pipe out of hole

Sounds like a full vehicle inspection of your vehicle is in order. A new fuel tank and filler neck are most likely required in addition to a new tire and fixing any body damage that occurred in the process. Other...

Q: timing belt

The best thing to purchase in this situation would be a timing belt kit. This kit will come with all of the parts necessary to replace the timing belt properly including the tensioner the timing belt itself and gaskets.

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...
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.