Q: Intermittent loss of acceleration and power

asked by on March 06, 2017

I have taken this car to 2 diffrent mecanic shops. It doesnt throw any codes and the issue doesnt occur consistently. It happens when im on the road driving between 2 cities it never does it in town. I will be going steady at various speeds and the car will start to lose acceleration sometimes the car dies before i get to pull over. Other times ill pull over and then it will die. It cranks right back up. It will repeat this a few times trying to get the car home or to a safe spot. Its never given me a problem with cranking right back up. The cars fuel pump has been replaced along with a few fuel hoses. Its hard to diagnose aince its not putting off any codes. I called the dealership and they didnt seem to want to deal with it since no check engine light is on etc. Im at my wits end. I was laid off recently i cant aford to not have a reliable vehicle and i cant afford to traid it in. Please help!!

My car has 122000 miles.
My car has an automatic transmission.

Car starts and then dies Inspection $94.99 - $114.99 Get a Quote

Hi there. Trying to diagnose this type of problem is incredibly difficult, so I totally understand the frustration. Usually, when this type of issue occurs, it is due to a loose electrical connection to an ignition system component, such as a crankshaft position sensor. If the connection is disrupted for just a second or so, the engine will stall. However, it’s also common for a mass air flow sensor to starve the engine of properly mixed fuel; especially during a longer distance drive like you’ve described. Clogged fuel injector and a dirty throttle body can also cause this type of problem. I wouldn’t recommend starting to replace parts, however, you might want to have the fuel injectors and throttle body cleaned, since this is routine maintenance that all vehicles should have completed every 50,000 miles. If the problem clears up after that, fantastic. If not, feel free to have one of our mobile mechanics come to your location to complete a car starts then dies inspection.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Self start not working in my motorcycle
Unfortunately, YourMechanic is a mobile automotive service based around the maintenance and repair of mainly cars and trucks. However, if you have a remote start on your motorcycle, it is possible that the keyfob battery is dead. It is also...
Battery light illuminates at 70 mph and turns off once vehicle speed dips below 60 mph.
Make a note of what rpm the engine is doing when you are at that speed causing the light to come on. With the car stopped in park, see if you can rev the engine up to that speed and...
How many engine mounts are in a 2006 Toyota RAV4?
Since the engine and transmission is suspended together, you have to consider the combined unit. There are 4 total engine & transmission mounts that should be considered. If engine torque tears any of the mounts, the other mounts are strained,...
Drive belt or pulley makes a screaming noise
Hi there, thanks for writing in. In most cases the screeching sound that is made upon start up is an indicator of a loose belt; either serpentine or drive belt. The belt maintains tension when the tensioner pulley (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-drive-belt-tensioner) is...
Do you have to remove the engine to replace timing chain cover gasket and water pump?
Hi there: In short, no; you don't have to remove the engine to replace a timing cover gasket or water pump on a 2000 Ford Taurus. You should remove ancillary components such as the radiator and some other parts in...
Engine light on. Problems accelerating
Hi There, Shaking or vibration (https://www.yourmechanic.com/services/engine-is-shaking-pulsating-or-vibrating-inspection) may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) may cause the engine idle to...
STEERING RETURNABILITY.
The vehicle should be lifted and see if there is any binding in the steering when turned left and right. If there is no binding then alignment of the vehicle should be checked and making sure the caster is more...
Will the working motor from my 2004 Saturn Ion 2 L fit the transmission in my 2003 Saturn Ion 2 L
Hi there. We get this type of question quite a bit. In most cases, the engines themselves will fit just fine and will be compatible with the transmission. However, the issues that always occur is linking with the ECU, fuel...
I have a 2007 Cadillac STS , the passenger door will not unlock with the fob or unlock from inside the vehicle controls , you have
Hi Ken. Thanks for contacting us tonight. What you are describing is commonly caused by an open or damaged electrical relay that operates the power lock function on your door. When the relay is stuck in an open position, it...

Related articles

The Best Used Cars to Buy If You're in a Wheelchair
Being Being in a wheelchair means you have a very specific list of demands, and requests for your vehicle. The main focus is of course how you will get in and out of the vehicle. There are some other aspects...
The Top 5 Selling Cars in Georgia in 2012
Georgia Georgia offers drivers a mild climate with very little snow, but rain is a major factor. Previous best-selling cars in the area, such as the Escape, Fusion and Camry, have shown that residents prefer a mix of both SUV...
Understanding the Kia Maintenance Reminder and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Kia Service Required light indicates when your car needs service.