Q: Flat spots and stuter at low speed and smelling petrol

asked by on

What can be the problem it sometines with startup white smoke then stops if i rev the car up the flatspots dissapear

My car has 235709 miles.
My car has a manual transmission.

Hi there. White smoke is sometimes an indication of coolant finding it’s way into the oil inside the motor. This can be caused by a blown head gasket or shortly after experiencing an overheating issue. It can also be caused by an over rich fuel situation; in most cases due to a fault with the idle control valve, mass air flow sensor or other fuel system component.

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. Flat spots and stuter at low speed and smelling petrol

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: Fuel regulator 0 psi.

If the motor is running, there can't be 0 psi. I'm not sure how you are reading fuel pressure from the regulator. This is not a normal diagnostic procedure. Maybe you are referring to a fuel pressure gauge. And again,...

Q: Car running really rough

Hi There, If you have tested and checked all coil packs and spark plugs with everything checking out properly, it may be likely that your issue is related to fuel delivery such as low fuel pressure or potentially a dirty...

Q: Q: Won't start

You need to look on the dash to see if your theft light is active. The system will let you crank it a few times until it locks out the crank signal. You may need to try another key if...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...