Skip the auto shop - Our mechanics make house calls

Q: Car shuts off when going into drive

asked by on

The blazer will start fine but when going into drive it shuts off and starts back up okay. It doesn't do it all the time just once and a while. Also when stopped at a red light the car starts shaking like it wants to shut off until you give it a little gas. The problem doesn't seem to happen while in park and it doesn't throw on the check engine light so I can't check codes. Any ideas?

My car has 95000 miles.
My car has an automatic transmission.

Hey there. This may be related to a faulty or dirty idle air control valve. This is a unit that monitors the air intake as it is mixed with fuel prior to being injected into the motor. When this is not working properly, this may send an unbalanced load of fuel into the motor which is especially critical when putting the car into gear or when stopped at a light with your foot on the brake in gear.

This creates an additional load on the motor which causes the need for additional fuel. This may also be due to a vacuum leak or potentially low fuel pressure which may also cause a lean fuel condition causing the motor to starve for fuel. For more help, a certified professional from YourMechanic can come to your car’s location to diagnose the stalling problem and move forward with any repairs that are needed.

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: My truck bogs down when I accelerate going down the road

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

Q: White smoke, won't start, 1999 Jeep Cherokee

Unfortunately this is an almost sure sign of the crack cylinder head or blown head gasket. The white smoke you are seeing is a combustion gas coming out of the cylinder heads which is a combination of the combustion gases...

Q: Car stalling when starting

The first thing to check is to see if the check engine light is on and diagnose any service codes before continuing. If the problem occurs only when the vehicle is first started, then have the fuel pressure checked to...

Related articles

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...
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...
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.