Skip the auto shop - Our mechanics make house calls

Q: I have my engine light on, and it popped up as "multiple misfires". I already replaced fuel injectors, coil boots, and spark plugs.

asked by on

I already replaced the fuel injectors, coil, boots and spark plugs. It will start up, but it turned off at a stop light.. it's not RPM right. Maybe it's a vacuum leak?

My car has 117100 miles.
My car has an automatic transmission.

A: Hi there. For the engine to stall out at a...

Hi there. For the engine to stall out at a stopped position, then there could be a vacuum leak. Check to see if the engine will stall out when running at idle in park or neutral. If the engine does, then check the idle air control valve (IAC) and see if the vacuum link has came off. A small vacuum leak will actually make the idle higher than normal, but a large vacuum leak will make the engine stall out at low rpm speeds, even in park or neutral. However, it a IAC fails, then the idle will drop after deceleration and make the engine stall out. If you need further assistance with your engine stalling out at a stop light, then seek out a professional, such as one from Your Mechanic, to help you.

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

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 car keeps stalling at a low RPM when letting off the gas.

These codes are transmission codes having to do with applying hydraulic pressures inside the transmission. When they malfunction, they can cause the transmission to engage at lower RPM's which will cause the motor to die. If your lucky, you will...

Q: Vacuum leak

If a vacuum leak occurred right after the carburetor was replaced then the gasket underneath it was not installed properly, is missing, or the vacuum hoses were not installed correctly. Prior to removing the carburetor I would double check the...

Q: Oil in the coolant tank, what are the possible causes please. What logical method of fault finding can I use to source the leak.

The transmission oil cooler is inside of the radiator and it may be leaking internally. If this is the case, you would need to replace the radiator and flush out the cooling system. If you'd like to get this fixed,...

Related articles

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...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.