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 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!
  1. Home
  2. Questions
  3. When I come to an abrupt stop, the engine stumbles like it wants to stall. Any thoughts?

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: Took engine from 4wd 1998 jimmy put in 2wd 05 sierra. Problem is transmission not engaging. What do i need to do?

Make sure the fluid level is OK. Check the shift lever and be sure it is actually moving the manual valve to the commanded position (Drive for example). To determine if the converter is functioning and/or if you have a...

Q: Oil evap and low engine effiency

Hello and thank you for your question. First, oil does not evaporate, but rather oil burns if there are no signs of leakage. Oil consumption is a common thing to see in engines. There are 3 things that will cause...

Q: Rough idle and car dies - 2007 Chevrolet Impala

Hey there. This is a common sign of a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine. This valve...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.