random shutting off

[irondiezl3]

every once in a while my car will just shut off instantly no hesitation no stalling no noises just boom off as if i turned the key off. its doing it more frequently now. i dont have a ses light i dont have a aftermarket alarm or remoste start. it drives normal. what the hell could be doing this? i have a new fuel filter and fuel pump.

[xXManwhoreXx]

Could be a million things to tell you the truth anything from a loose wire in your ignition to a bad igniter could be a ground vibrating loose, etc...

First check would be the IACV than the Ignition coil's if they over heat they can lose there connection.

Are you noticing any smells or common factors like "only once the car heats up" or "only at idle"

[Ttop191]

failing alt would be my guess...not getting enough juice to the bat so the car dies

[irondiezl3]

so far only at idle and i do have a factory alternator but its still charging out 14.4v

[Ttop191]

hmmz....I would have to agree with manwhore then and go with a lose ground

[irondiezl3]

lose ground where it would have to be something that gets lose overtime with vibration then right? how about a lose stereo ground?

[Ttop191]

lol! stereo has nothing to do with the rest of your car...

check all the grounding straps in your engine bay, give em the "wiggle" test

[irondiezl3]

battery ground alternator ground starter ground what else?

[Ttop191]

every chassis ground, from the engine block, tranny, everything

[xXManwhoreXx]

The fact that its at idle could also be vacuum are you having jumpy RPM's

[irondiezl3]

always had jumpy rpms nobody could ever figure it out drives me nuts but ive learned to live with it

but when i say jumpy it never jumps over 1 so if im idleing at 600 it would never jump over 1000

[dbailey]

Mine will randomly die too but it does it while I'm driving (00 Alero 3.4) Only a couple of times but its like NOTHING leads up to it. Going along and it just dies. Kick it into neutral and it starts right up and on my way I go. Hmmm..... :rolleyes2:

[zzyzzx]

What's the brand name on the new fuel pump? Where did you buy it? Is itmade in China?

[dbailey]

Hmmm......not sure what brand name is. The mechanic that installed it purchased it from a parts store. :(