Q: Car starts but idles rough and stalls

asked by on

Hi I recently took my car apart to change the timing chains but found out they were brand new so I put it back together but now the car starts but won’t stay alive. I can start it but it idles rough and when I give it gas it get louder and smells bad.

My car has 130000 miles.
My car has a manual transmission.

Hi There, A few different things will usually cause the vehicle to start and then die. A bad ignition coil can cause this if it is beginning to fail, resulting in intermittent starting problems. A dirty or faulty mass air flow sensor, may also cause this kind of reaction. The mass air flow sensor is a unit that measures the volume of air entering the motor and relays this information to the computer in order to cause the computer to make the proper air/fuel adjustments. A bad fuel pump or fuel pump relay may also cause this kind of starting issue as a result of the engine starving for fuel. I would suggest having a professional from YourMechanic come to your location to diagnose and inspect your vehicle to determine the proper solution to this.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car starts but idles rough and stalls

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: Engine clanking when starting

Hello. Most of the lights will flash or come on when the car is started. It is the manufacturers way of allowing the owner to easily determine if the bulbs are working properly. If the lights remain on after a...

Q: Q: Car not going into gear

Hello. The two things that I would first recommend evaluating in relation to your concern are the brakes and the transmission pressure control solenoid. The brakes may be locked in a position that will not allow the car to move....

Q: I have a 87 VW Scirocco w 32000 miles. I just replaced the water pump and did the timing belt.

Hi there. Check the timing between the camshaft and the crankshaft and make sure that they are in time properly. It is possible that the timing could be off when the timing belt was changed. The number 1 piston should...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.