Q: Car shuts off unless the gas pedal is applied

asked by on

I went to the mechanic because the car keeps shutting off. I was told that when I release the key, only 12 volts is being discharged by the coil. I had the fuel lines and the gas tank flushed and cleaned. He overhauled the carburetor as well. The car keeps cranking on start up for a long time. This makes the battery drained. I'm able to start the car. However, it would shut off very soon afterwards unless I keep applying the gas pedal. The car would shut off if I'm at a traffic light, or slow down to make a turn as well as when changing gears. What could be the problem?

The coil should be generating tens of thousands of volts to the spark plug. 12 volts is the correct supply side to the coil. It also sounds like you still have a fuel problem. Have a professional mechanic check the basics: confirm good spark at the spark plugs (with both a cold engine and hot engine), check the carburetor for adequate fuel supply, and check the low-speed circuits in the carburetor for clogging. If you would like to get a second opinion on this, a qualified professional from YourMechanic can assess the stalling issue to have this issue resolved correctly.

Was this answer helpful?
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. Car shuts off unless the gas pedal is applied

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: Oil leak from bad gasket.

Oil will always gravitate to the lowest point on your engine. Your engine may have oil leaks from the valve cover or intake manifold and leaking down. You would have to get the oil leaks on top fixed and then...

Q: Overheating problems - 1985 Jeep CJ7

It sounds like you still have a blown head gasket or minute crack in the cylinder head or block, both of which can cause overheating. You mention that you "repaired the head," but don't identify what was done. I would...

Q: I replaced 2 spark plugs in cylinder 5 to fix a misfire.

Leaking valve covers on this engine allow oil down into the spark plug recesses as you note. Besides shorting the plug, the oil degrades the boot portion of the coil which plugs onto the spark plug, creating other opportunities for...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...