Q: Hard time starting car after refueling

asked by on

Whenever I put new gas in the car, it has a hard time starting. The engine has to stutter for a while before it starts. Also sometimes the engine will rev up and down for a while before it runs normal.

Hello. It sounds like you may have a bad vent or purge valve in the evaporative emissions system. Most of the time this is caused by the purge valve. These valves work to contain the gas fumes in the vehicle until they can be burnt off in the engine at the correct times. If the purge valve is stuck open then these fumes will enter the engine while your are fueling. That will essentially cause the engine to run very rich right after fueling, causing it to run like this. A mechanic would typically remove the valve and check its operation or perform a smoke test.

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. Hard time starting car after refueling

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: Car won't accelerate - 2005 Hyundai Tucson

Hi there. Although it's hard to diagnose a problem remotely, I believe the root issue that may be causing most of the acceleration problems are overheating issues. Sometimes when an engine overheats, it triggers and error code to trim back...

Q: Jeep hesitating and then taking off

From the information provided on your Jeep Liberty, it leads me to believe that the problem may actually lie with the transmission and not with the fuel filter. After shifting into gear, if there is a delay in the engagement...

Q: No fuel flow from tank

It sounds like you may have a faulty fuel pump or a bad fuel pump relay. The relay wires should have ground on two wires, power on one wire and switched power on another wire. To activate the fuel pump...

Related articles

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 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...