Skip the auto shop - Our mechanics make house calls

Q: When I come to an abrupt stop, the engine stumbles like it wants to stall. Any thoughts?

asked by on

Could the above issue be a sign of a 1) bad fuel pressure regulator,2) low transmission fluid causing a torque converter lock up issue, 3) or bad fuel pump.Fuel filter was replaced in march of this year and transmission was serviced about 20,000 miles ago.I seeno visible leaks under the car.

My car has 127200 miles.
My car has an automatic transmission.

A: A low transmission fluid level from a leak ...

A low transmission fluid level from a leak is more likely to cause the transmission to slip, especially on hills. If the torque converter clutch of the electronics that control it are sticking on, this situation may cause the engine to stumble as you come to an abrupt stop as the converter clutch solenoid should turn off. This will allow some slip at a stop since the engine is running and the wheels are not moving. Consider visiting your local transmission repair facility and have them take a closer look at your concern. If you’d like a second opinion, consider YourMechanic, as one of our mobile technicians can come to your location to offer a more personal diagnosis of your rough running engine.

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: I just need an alternator line replaced not the whole thing how much would that be. 2016 Nissan Sentra

If your car is a 2016 with only 30 miles on it, it should still be under factory warranty which should cover any or all of this. I would suggest taking it to the dealer to have them check it...

Q: Engine hesitating at idle and when accelerating

Hello. It sounds like you have a series of issues going on with your vehicle. The engine hesitation and lack of power are more than likely also going to reflect the Check Engine Light. If you are getting a hissing...

Q: Car runs rough, turns itself off & shakes

Hi! How very frustrating to spend money to have your vehicle repaired and then it's still not fixed! Fortunately you have some warranty on those repairs and can return to the BMW dealership and express your dissatisfaction with their inability...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.