Q: Have to accelerate slowly or dies

asked by on

81 bronco 351 Windsor...Idles great ...runs great down road ...unless you give it gas fast then stalls. If you push accelerator slow it is fine. c are issues? Timing?
My car has an automatic transmission.

Hey there. This problem of stalls on acceleration is most likely caused by the carburetor accelerator pump is not pumping fuel into the engine when the throttle is pressed. This explains the vehicle running great at steady speeds and idles fine. The accelerator pump only works and pumps additional fuel into the engine when you accelerate. You can open the air cleaner and with engine off look into throttle opening and have someone push the gas pedal a couple time to see if you see fuel squirting or not. If no fuel is squirting, then the carburetor will need to be removed and overhauled or replaced.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. Have to accelerate slowly or dies

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: Hi, I have an 06 mazda 3 and it will start and idle just fine but when I press the accelerator down, it won't even rev up.

Hi there. There could be a fuel volume issue (meaning the amount of fuel is not adequate) or the MAF (mass air flow) sensor is dirty or not working. Check the fuel pressure and make sure that there is at...

Q: Not getting any power to ignition switch, is it bad?

Hi, thanks for writing in. In order to diagnose the problem, you may have to put all the wiring back to the way it should be first. I have seen the ignition switch and the tilt wheel ignition mechanism brake...

Q: Car starting, idling, and then stalling

Hello. If the engine will only run for a short period of time then it may have a failing fuel pump or an electrical issue. Being that you stripped out the fuel filter connections, the metal lines may need to...

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...
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...