Car shuts off by itself

[eugenesxyby999]

hi,


I have a 1997 mitsubishi eclipse rs. Im getting some engine noises. The rpm doesnt stay constant when its in nuetral. It moves to 1 and then back to 1/2. The engine is quiet for a second and then it starts to shake and this goes into a pattern. The arrow keeps moving up and down between these 2 numbers and after a couple of minutes, the car just shuts off. If I only touch the gas a little bit and hold it, the car doesnt do this but when I let go off the gas pedal, it does this whole pattern and automatically shuts off.
Also if I dont press the gas and turn the steerling wheel, it shuts off automatically.


Please can someone tell me what to do? maybe something to adjust? Here is the type of motor it has.

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[assault187]

Possibly a vacuum leak somewhere. Do you have a vacuum pump? and a repair manual? if so use them both. The manual will always list the best place(s) to hook up for this test. There is also a trick you can do that might help. Grab a can of carb cleaner and spray in on seals and vacuum lines around the motor, If the motor revs higher thats where you start looking for beat gaskets and rotted lines.

If the car isnt idleing properly the alt. cant do its job, when you turn the steering wheel you power steeing it robbing the little power that the alt. is putting out ....shutting the car off.