Skip the auto shop - Our mechanics make house calls

Q: Why when i go to crank up my car i have to press the gas

asked by on

hi i have 2005 chevy malibu and the reader for the gas amount doesn't show the accurate amount which i was told was the floater but also when i start it i have to press on the gas for it to start up completely other than that its runs good no engine light on so what could it be?
My car has an automatic transmission.

A: If you have to hold the gas open to start t...

If you have to hold the gas open to start then you may have a throttle body and idle air control valve that has carbon deposits that need to be cleaned. The intake valves may also have carbon build up and combustion chambers need to be cleaned using GM approved cleaners. An inaccurate fuel sender may be faulty which will need to be replaced as well. If you'd like some assistance with this, have a certified technician, like one from YourMechanic, diagnose your starting issue for an accurate repair. Best of luck.

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・Save up to 30%

Get a quote

What others are asking

Q: after sitting for a week fuel gauge not working sitting on E

This is somewhat common on the later model Corvettes. Try unhooking the battery to see if a "global reset" will correct this as sometimes this allows the controllers to reset. The Corvette (as well as many other vehicles) has an...

Q: Rotten egg smell, all lights on dash board are on BUT the check engine light is off.

Simultaneous illumination of "all" warning lights on the dash while driving, when there is no underlying fault, indicates an electrical failure. That failure would have to be diagnosed in a warning light diagnostic. With regard to the check engine light,...

Q: Fluid leaking - 2009 Chevrolet Malibu

There should not be ANY leaks or seepage. One obvious thing to check is the drain plug/gasket (if equipped). It is also possible that fluid is leaking past the transmission oil pan gasket if the pan was removed and a...

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...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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.