Q: Coughs and sputters first few ninutes of the day and not starting

asked by on

On first start up and drive of the day, the engine coughs and sputters for a few minutes, then settles down to normal. Idle air control just replaced with no change in problem. Plugs are 6 mos. old as well as the coils. Timing belt replaced 6 mos. ago. Not throwing any codes.

My car has 75000 miles.
My car has an automatic transmission.

Hello. Though there are a lot of possible causes here, most of the time this is a fuel related problem. If the fuel pump is not holding good pressure when the vehicle is shut down and if the pressure does not build up right away when it is started then this will occur. If the fuel pressure is fine then I will usually install a scan tool to check the sensor readings when this is occurring. I would suspect a bad oxygen sensor or a failure in the air flow meter. The readings would let me know for sure what is going on. If you are planning on having this problem repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose this rough idle and sputtering.

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. Coughs and sputters first few ninutes of the day and not starting

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 is misfiring and Check Engine Light is on - 2002 Toyota Tacoma

Hello. A flashing Check Engine Light is a sign that the computer has detected an issue that could potentially damage the vehicle's emissions components. I would recommend scanning the trouble codes when the light is flashing in order to determine...

Q: Popping out the exhaust and backfiring out the carb

Adding additional vacuum to the car when it is already backfiring will usually compound the problem due to the lack of fuel supply. Backfiring is most often a result of a lean condition. Adding transmission fluid to the fuel mixture...

Q: How much would you charge to replace the control arm bushings in the front and rear? 1999 Mazda Miata

Sent to CS front lower control arm bushings replacement front upper control arm bushins replacement rear lower control arm bushings replacement rear upper control arm bushings replacement

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.