Engine stalls, then runs after pressing accelerator

The Car comes to an stall when accelerating,pressing the gas pedal ...

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Feb 7, 2007 - Sometimes when I press the gas pedal seems like nothing happens car doesn't accelerate at all only it loses the power and finally comes to a Stop, and sometimes it recovers (shakily) and keeps on truckin'. ... Does the engine shake andstall when you put the transmission into ... car stalls if gas pedal not pressed.?
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Hi. It would be useful to get a code read and some live data from a decent diagnostic tool. There are quite a few possible causes including, pressure in tank - if the fuel tank can't vent pressure then a vacuum will eventually form stopping fuel getting to the engine, this will cause it to loose power and stall. Then after a few mins the pressure will drop and the process start again, easy test is when the car stalls remove filler cap - if that's the fault there will be an audible hiss and the car will start up again.

part blocked exhaust will have same problems but will more generally cause a lack of power and acceleration.
are there other symptoms? i.e only when conering or only when pulling off or stopping, engine light on/off. Jon

CAn you describe the problem with a little more detail. Does it start and run for a while before it stalls. Does it start and then stall right away. Is there a pattern to the stalling, turning, going over bumps, coming to a stop, trying to accelerate?

what engine do you have?

is the check engine light on?

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Disengage the traction control if possible see if that helps. the oil light will come on after stalling, because the key is on.. just like when you start the car. it may be dirty fuel system... filter and or injectors...

If the belt gets wet and flies off, or starts to slip, the power steering and alternator will stop spinning causing this condition.

Check belts to see if they are still on the truck and spinning the pulleys of the alternator and power steering pump.

Have you looked at your idle air control valve What is it? This is an electrically driven valve that allows additional control over the throttle at idle Where is it located? The IAC is located on or adjacent to the throttle body and consists of a small device held on by two bolts with an electrical connector.
How does it work? When the throttle is closed the throttle plate closes off any air from the intake manifold. In order to stop the engine from stalling due to lack of air the IAC opens a small valve allowing air to pass from the air ducting to the intake manifold. Often the IAC components consist of an air inlet port in the inside wall of the throttle body, immediately in front of the throttle plate, with a similar exit port behind the throttle plate. Connecting the two ports is a motor driven valve. When the valve is opened air effectively by-passes the closed throttle plate to maintain the engine at idle. The IAC also augments the throttle when additional power demands are put on the engine such as steering.


Symptoms of faulty IAC

• Poor starting: If the IAC fails to open or the inlet/exit ports are clogged shut with carbon the engine may start and then promptly stall. The engine can be kept running by pressing the accelerator. However any additional demand on the engine such as power steering or putting the car into drive (automatic) will cause the engine to stumble badly and often stall.
• Engine cut out: Even with the engine warmed when the vehicle is stationary such as at a red light the putting of the transmission into of 'drive' to pull away before the accelerator is pressed can cause the engine to stall. (Note this differs from the TPS fault which causes engine stall due to the accelerator being pressed too quickly)

How to check? Physically remove the IAC but keep the electrical connection to it. Temporarily block off the now open ports on the throttle, turn the engine on and examine the IAC valve action in response to additional loads (power steering inputs etc). The valve should open and close according to demand.

How to fix? If the motor of the IAC has failed then replace the IAC. If the valve is gummed closed by baked oil and carbon then clean it thoroughly with carburetor choke cleaner spray and a cloth. Similarly if the entry and exit ports on the throttle body to the IAC look blocked again clean them out thoroughly.

sounds like your carb is getting to much air some where check your hoses

If the power steering is tight and does not loosen up,i would say the power steering pump is locked up.With the engine not running ,remove the drive belt from the engine.Try and turn the power steering pulley with your hand.It should be easy to turn,turn it 4 or 5 times all the way around.If you can not move the pulley,or it stops,or gets tight turning it all the way around,then it is a bad power steering pump.This is something you will want a mechanic to do.If I can help,let me know.

I have a feeling that when you stopped the first time your engine was already stalled....if your engine was still operating you would have had either brakes, or steering, or both.......

When you said you tried to accelerate, did the truck move at all?, or did the engine race?...what else happened?

In the short description above it sonds like your fuel pump may be on vacation, hence no fuel, hence no power sterring, or power brakes...good news is...no speeding tickets either (just a little humor).

Hopefully this helps you, let me know, and thanks for letting FixYa.com try to guide you.

you say stopped running steering locked up the steering lock is mechanical and has nothing to do with the actually running of the engine so i am presumming that the car was idling stalled on its own and the steering as you tried to restart it locked or the steering won,t turn it won,t if the engine s not running as it is helped by the power steering pump which doesn,t work unless then engines running but if the steering has just locked up then you won,t be able to turn the steering in which case you,ll need a new steering lock not that big a job yates210456