[goofynoodle]

So..... i'm driving to work and my car stalls. no apparent reason. turned off the key, tried to restart.... nothing. 20 minutes later, it starts right up, but dies a minute or 2 later., it has gas, even put iso- heet in it last fill up. engine was warm and there seems to be no loose electrical connections. dead battery? alternator? dont know if this is related, but a week or two ago when i started it up, it ran like crap. like a cylinder was missing. drove all the way to work and worried all day. then after work, go to try starting it, and it runs fine!!! then 2 days later same thing happens, but i immediatly shut it off and restart it and it ran fine... AHHHH!!!!

This post has been edited by goofynoodle: 19 January 2011 - 07:07 PM

[ChibiBlackSheep]

Unplug your MAF and try to start it?

[goofynoodle]

dont have a MAF sensor

[goofynoodle]

theres a power problem i think. when it first died, thedash lights ang gages still worked, but by the time i rolled to a stop no power to the dash. but then it all worked again 20 minutes later. ground strap? chip in the key?

[03_S/C_SS]

goofynoodle, on 19 January 2011 - 08:25 PM, said:

dont have a MAF sensor

what kind of car is it?

[goofynoodle]

95 m/c 3.1 v6

This post has been edited by goofynoodle: 19 January 2011 - 09:58 PM

[goofynoodle]

yo-k, heres whats goin on. no fuel pressure. fuel pump and filter is 3 years old, hope its not the pump. .... please god not the pump. dam stoopid chevys and their dum stoopid fuel pump eating ways!!!

[goofynoodle]

its an electrical problem i think..... unplugged the neg on the battery, plugged it back in and let it warm up, then revved it ti 12000 rpm for 2 or 3 minutes....runs fine for now. when it was stalling before, had to use starting fluid to get it running and when it revved to 4000 rpm it acted like hell... hard to explain. so what would just kill the fuel supply? gotta be a sensor and i cant get it to a mechanic. any ideas?

[Tackle]

goofynoodle, on 29 January 2011 - 03:44 PM, said:

its an electrical problem i think..... unplugged the neg on the battery, plugged it back in and let it warm up, then revved it ti 12000 rpm for 2 or 3 minutes....runs fine for now. when it was stalling before, had to use starting fluid to get it running and when it revved to 4000 rpm it acted like hell... hard to explain. so what would just kill the fuel supply? gotta be a sensor and i cant get it to a mechanic. any ideas?

12,000 rmp for 2 or 3 mins???? Holy Cow! What do you got in that thing? I hardly ever get mine past 4000, and thats when I'm drivin pretty hard.






JK, I know you mean 1200

[ChibiBlackSheep]

How long did you have the negative unplugged?

[goofynoodle]

ChibiBlackSheep, on 04 February 2011 - 08:13 PM, said:

How long did you have the negative unplugged?

first time... a minute or so.... second and third time.... like 5 . i'm gettin freakin paranoid... it'll just die outta nowhere. seems better if i let it warm up... i'm in northern illinois so it's been really cold. uses alot of gas when it's acting up, kinda gutless...kinda

[goofynoodle]

ok.... apparently the battery thing dont really help.... gotta be a sensor... but what could just kill the engine? no engine light comes on and while i was still rolling, i tried throwing it in neutral but it wouldnt turn over at all. is that normal? had to stop and put it in park to start it.

[nitehawkjcb]

Several things could make the engine die. Clogged cat, could be a crank or cam sensor, but since you said you're getting no fuel pressure, check the fuel pressure relay in the fuse box. Change the fuel filter. You may need a new fuel pump, could be the wiring to the pump... Check all your ground wires while you're at it...

This post has been edited by nitehawkjcb: 08 February 2011 - 02:41 AM

[goofynoodle]

at first it would stall, and after the stall there was no fuel pressure, had to use starting fluid. but now, as long as i put it in park (not neutral) it'll start right back up and run absolutely fine for a day or 2 then it dies.

[nitehawkjcb]

Sounds like you're having the same problem I am...

[goofynoodle]

hasnt stalled in a week... but if i'm sitting at a long light, it starts running really rough, like it's missing.

[goofynoodle]

cold weather seems to really screw with it....

[nitehawkjcb]

Change your fuel filter, hopefully your pump didn't die already

[goofynoodle]

clogged fuel filter affected by cold? or just in general?

[nitehawkjcb]

Your issue seems to be fuel related, so changing the filter can't hurt, and they're only like ten bucks. Don't rule out the MAF sensor, it could be causing your stalling/sputtering issue.

[goofynoodle]

ok.... will do. dont have a maf sensor

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[nitehawkjcb]

Ah, you must have a '95. Check your fuel pressure regulator. Take the vacuum line off it and smell it. If it smells like gas, there's your problem.

[goofynoodle]

vac line on fuel pressure regulater smelled of fuel, changed the part, but car still runs like hell and stalls, but only sometimes. iac seems ok, tps.... i think is ok, and the intake temp sensor is givin some weird readings..... could that do it?

This post has been edited by goofynoodle: 02 April 2011 - 02:52 AM

[goofynoodle]

somethings killing it. not starved for air... no vac leaks. but seems to be at idle or near idle every time... it stalled yesterday and i was cruising at 55mph, si i dropped it into regular old direct drive, and i could hear the engine trying to run, but at like 100 rpm! no amount of throttle could get it running right. i think its either the tps or the iac valve.... which should i try first? if any

[dfinney]

goofynoodle, on 04 April 2011 - 04:04 AM, said:

somethings killing it. not starved for air... no vac leaks. but seems to be at idle or near idle every time... it stalled yesterday and i was cruising at 55mph, si i dropped it into regular old direct drive, and i could hear the engine trying to run, but at like 100 rpm! no amount of throttle could get it running right. i think its either the tps or the iac valve.... which should i try first? if any

Still sounds like maybe fuel pump. Can you hear the fuel pump when it won't start. You said no fuel pressure when no start. Have you tried to have someone turn the engine over and bang on the tank hard when it wont start. GM pumps are notorious for loose fitted connections. Thats usually why you can bang on the tank and start it. May run for a year or an hour but sux either way the pump has to come out if thats what it is. Let us know if you find anything.

[goofynoodle]

i can hear the fuel pump running after it stalls, then pump quits. it's been warm last 2 days.... hasn't stalled. intake air sensor bad?