Skip the auto shop - Our mechanics make house calls

Q: Why when I start my car its very accelerated?

asked by on

Everytime I start my car it starts very accelerated and I would like to know why.

My car has 118000 miles.
My car has an automatic transmission.

A: If you are getting a very high idle when yo...

If you are getting a very high idle when you first start the car and it comes down to a normal idle in less than five minutes, then you may have a vacuum leak in the intake manifold gasket that only leaks when you start the car in the morning and then seals itself as the engine warms up. You will need to have the engine checked for a vacuum leak before you start the car and get it warmed up or leave it with a mechanic to check it first thing in the morning. The intake gasket or manifold runners may need to be repaired or serviced. If you want to have this looked at and repaired, a technician from YourMechanic can come to your location to diagnose your high engine idle issue.

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: Car starting, but turning off

You may be having an issue with the antitheft system not enabling the fuel system or possibly your fuel pump may be having an issue. Take a look at the antitheft light on the dashboard, when the problem is happening...

Q: Loud metal screeching noise and vibration from pulley

Hello, thanks for writing in. For this particular vehicle it appears that the pulley and harmonic balancer are integrated into one unit. That means replacing either would be to replace both, as they are one part. If you would like...

Q: I lost my key to my Pontiac Grand Prix 2003. It will start without the key, but shuts off after 30 sec - is this because i don't have the key?

Hey there. Your vehicle is equipped with what GM calls their VATS system (vehicle anti-theft system). There is an electronic chip embedded in the ignition key and a "chip reader" that is part of the ignition switch. The reader looks...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...