Skip the auto shop - Our mechanics make house calls

Q: Recently my car started to hesitate when I accelerate from a complete stop.

asked by on

When at a stop it hesitats to go. Even has dies out when i was at a stop to long. It gave me a rough start. N i had to give it gas to stay on. I had the car scanned and misfire codes came up. The spark plugs are new so are the fuel injecters. What else can it be the codes still read. And i drove the car it drove fine but after 5min when i stopped it started to idle weird and hesitate again the check engine light flashed and then stayed on. Also when it shut off one time the engine light and battery light came on the car shut off. When i drive with no stops on freeway its fine. Just when i stop and it idles to go it starts

My car has 170000 miles.
My car has an automatic transmission.

A: Hello. There are several problems which cou...

Hello. There are several problems which could affect poor idle and low speed running. Starting with the misfire indicated by Check Engine codes, bad spark plug coils, especially with your mileage. Check also for oil leaking from the valve cover into the spark plug recesses - this will cause shorts and misfiring as well. A dirty or sticking idle air control valve and/or throttle body, clogged fuel filter can cause poor low speed running as well. I recommend having a certified technician diagnose the misfire in person for a precise diagnosis and repair.

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: Accelerator pump not sealing

Hi there. The problem with replacing an OEM product with an aftermarket version is that sometimes things don't always align perfectly. If the accelerator pump and carburetor are not made by the same company, the issue with sealing and having...

Q: Does the water pump need to be replaced if the water pump belt is showing signs of wear? Or just the belt?

Hi, thanks for writing in. There is no reason to replace the water pump every time the belt is changed, unless the pump itself is damaged or not working properly. The belt may show signs of wear which is fairly...

Q: Car surges in gear when stopped and it is starting to completely shut off/die after surge.

This sounds like you may have a faulty idle air control module. This is a component that monitors the flow of air into the engine at idle speeds. The purpose of this is to regulate the air being mixed with...

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 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...
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...