☰
×
How It Works
- How It Works
- Pricing
- Book a Mechanic Online
- About our mechanics
- Reviews
- Contact
SERVICES
- SERVICES
- Oil Change
- Car is not starting Diagnostic
- Check engine light is on Diagnostic
- Pre-purchase Car Inspection
- Battery Replacement
- Brake Pad Replacement
- Explore 500+ Services
ADVICE
- ADVICE
- Cars
- Scheduled maintenanc
- Estimates
Cities
- Cities
- Greenville, SC
- Pasadena, TX
- Orlando, FL
- Charlotte, NC
- Chicago, IL
- San Antonio, TX
- Austin, TX
- Atlanta, GA
- Tampa, FL
- Washington, DC
- Los Angeles, CA
- Phoenix, AZ
- All Cities
FLEET
- FLEET
- Fleet Services
- Partner with us
Become a mechanic
GET A QUOTE
asked by
Amanda A
onOctober 17, 2016
When the car is at a stop light it idles at less rhan 1 rpm when it is is in drive (in neutral it doesn't do this) The car has an automatic transmission. It makes a loud hum and shakes when it does this. What might be the problem? More importantly what might be a solution? Thanks
My car has 120000 miles.
My car has an automatic transmission.
Recommended Services
Idle Control Valve Replacement | $162.54 - $1028.01 | Get a Quote |
Or For Any Other Auto Repairs | Get a Quote |
Hi there. This may be a sign of a failing idle air control valve. The idle air control valve is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected into the engine. This valve is controlled by the vehicle’s computer which will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. When you accelerate, the engine RPM increases, and as you let off the gas, the RPM slowly returns to the normal idling speed. However, when the engine RPM drops below the normal range of 800 RPM (for most cars), it is more than likely that you are dealing with an IAC valve problem. In cases where this valve is clogged or is failing, your vehicle will stall instead of slowing to an idle after the release of the throttle. If you would like to have to have this done, a qualified professional, like one from YourMechanic can come to your car’s location to replace your idle control valve.
The statements expressed above are only for informational purposes and should be independently verified. Please see ourterms of servicefor more details
- Home
- Idle Control Valve Replacement
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
Experienced Mechanic?
Earn up to$70/hr
What others are asking
How do I rewind or fast forward a song on the CD player?
Rewinding or fast forwarding a song could not be easier. Simply press and hold FF to fast forward, or RW to rewind. Release the button when you reach the part of the song you want to listen to.
Read more
What does the Battery Saver Active message mean?
The Battery Saver Active message can appear on your driver information center (DIC). When the DIC displays this alert, that means that your battery has a low charge, and your vehicle is shutting off certain systems that may drain the...
Read more
How do I set or reset the service distance?
The service distance feature displays a warning when you have traveled a set number of miles, to remind you that you should get your vehicle serviced. You can choose how many miles are traveled before this reminder comes on, or...
Read more
How do I read the fuel gauge?
The fuel gauge is located on your instrument panel, and displays how much fuel is left in your gas tank. When the fuel gauge displays that you are nearly out of fuel, then you should add gas to your tank...
Read more
throttle position sensor can it affect coolant temperature?
The throttle position sensor will not have anything to do with the coolant temperature. The problem with the coolant temperature gauge you had may be due to the coolant change that was done or the system itself has a problem....
Read more
Car shut off when driving, 2009 Toyota Camry
Has the Check Engine Light illuminated after the stall? A loose battery connection can cause abnormal problems on many vehicles. Have the battery and charging system tested for issues and check your maintenance schedule to make sure services are up...
Read more
My key fob will not open my car doors or trunk. I inserted a new battery in the fob and that did not help. What cld be the proble
Based on your description, I believe that the first issue is the lack of programming for your new key fob. If the dealership told you that the key requires programming and that was not done, this is the reason that...
Read more
Hi! I have a 2001 Mazda Protege that is giving me some transmission problems.
The problem sounds like the filter is getting clogged or the front main transmission pump is getting weak and internal seals are leaking. I would suggest having the filter screen cleaned and fluid replaced to see if shifting improves? If...
Read more
my 2004 mitsubishi montero sport cranks but wont start and is leaking coolant
Have the cooling system pressure tested to see where the coolant is leaking out? If timing belt was broken or installed wrong you may have bent the valves in the engine and should do a compression test to see if...
Read more
Related articles
A Buyer’s Guide to the 2012 Ford Focus
The The 2012 Ford Focus brings a lot to the world of compact cars. Available as either a four-door sedan or a five-door hatchback, the Focus has great fuel efficiency and European styling that sets it apart from other cars...
Read more
Ford Certified Pre-Owned (CPO) Car Program
Drivers Drivers in the market for a used Ford vehicle may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on to learn...
Read more
How to Get Ford Dealership Certified
Ford car dealerships offer automotive technician jobs to mechanics who are certified through either the ASSET or the FACT program.
Read more
Browse other content
Maintenance
- Toyota Camry Maintenance
- Chevrolet Malibu Maintenance
- Nissan Maxima Maintenance
- Honda CR-V Maintenance
- Ford Fusion Maintenance
Services
- Drive Belt Tensioner Replacement
- Radiator Replacement
- Timing Belt Pulley Replacement
- Ignition Cable (Spark plug wires) Replacement
- Power Steering Pump Replacement
Cars
- Oldsmobile Service
- Isuzu Service
- Buick Service
- Saab Service
- Audi Service
Estimates
- Hyundai repair estimates
- Geo repair estimates
- Saturn repair estimates
- Plymouth repair estimates
- Jaguar repair estimates