Skip the auto shop - Our mechanics make house calls

Q: Car pulling when I change gears.

asked by on

My car is pulling when I change gears. The scanner says the gas is too lean in bank 1. I think it might be the sensor or a hose is leaking , or retaining, air.

A: All the air that goes into the cars engine ...

All the air that goes into the cars engine is metered. If there is unmetered air coming in somewhere it will be detected by the Oxygen sensors and a lean code will be set. A lean condition will cause a drivability issue if it is severe enough, sometimes to the point of keeping the car from starting. Lean conditions are usually vacuum leaks. Something like a loose or torn air intake hose can trigger a lean condition code. A torn vacuum line or leaking intake gaskets can cause the lean condition also. A mechanic should be able to determine where the leak is and repair it. The code stored in your cars computer is very important and can help pin point the leak faster, so don’t erase it.

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: Gear shift not moving

The most common problem with this vehicle not coming out of park is the brake light switch. The computer doesn't see that your foot is on the brake and will not allow the park lock to disengage. I would recommend...

Q: Car won't turn over

The battery should be load tested by a professional. Load testing can only be reliably performed on a fully charged battery. If the battery passes a load test be sure it is NOT a marginal pass in which case you...

Q: Bumpy ride at high speeds

Hi. If the car has a wobble to it at high speeds it may be a that the wheels are not balanced. Also it can be because of a damaged wheel bearing. A mechanic can take it for a test...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.