V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Wont Start... Please Help

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Old Jul 4, 2003 | 05:41 PM
  #1  
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
Wont Start... Please Help

ok, so i go into subway last night after running around all day, get back in my car and she cranks away but wont start. waited 2 hours for AAA to come get me, today put a new bat. in, took my ignition module up to AZ for a test, came out bad put the new one in and NOTHING different. my next thought was the tps... but i dont know, im desperate, this car is killin me with s%*t like this... is it a fuel pump? all fuses r good, unless there is one in there hiding from me some wear under da hood... i dunno... just need somthing here, i dont even have a way to get to work right now, thanks
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Old Jul 5, 2003 | 01:38 AM
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From: St. Louis, MO
Car: 85' Firebird (Project), 92' RS
Engine: 2.8L, LS1
Transmission: 700R4, 4L60E
Axle/Gears: 3.42 Open , 10 Bolt (ukn)
well, if it's the fuel pump, chances are you won't hear it prime....also, when my pump went out it would start the car and would do fine idling, but if you gave the engine some gas, it'd die out on you....no fun. I'd say your problem lies somewhere in the electrical system, have you checked to see if you have good spark yet? just a check....could also have a clogged fuel filter and are depriving the engine of fuel, if not, then you might want to check that pump.....so, see what type of spark that bad boyz running and get back to us.
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Old Jul 5, 2003 | 07:54 AM
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
does it help to know in the last 3 weeks...... new plugs(gapped to stock specs) new wires, new fuel filter,new pcv valve, new distributer cap, new roter,new msd coil, and a new ignition module? hope that helps, im gonna go ahead today and throw in a new tps... money is not a problem... thanks fellas
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Old Jul 5, 2003 | 10:27 PM
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From: St. Louis, MO
Car: 85' Firebird (Project), 92' RS
Engine: 2.8L, LS1
Transmission: 700R4, 4L60E
Axle/Gears: 3.42 Open , 10 Bolt (ukn)
well, looks like you've covered a good portion of the ignition problem areas. And i'll take it that the car ran fine after you did this. Q: did it rain after you did any of these changes? if rain water got onto terminal wires they can corrode, which would give you some very mean issues with your car. You should pull a plug to see what ur sparks looking like if you haven't done that yet....the spark should be a bluish color, no yellow or crap like that....and i'd also say to recheck your steps with everything that was changed, to make sure nothing has come undone.
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Old Jul 5, 2003 | 11:01 PM
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
could this be a fuel problem?
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Old Jul 5, 2003 | 11:11 PM
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check to listen to pump. turn key to on, and be deathly silent.
if sound, good, silent, bad. bad pump.

ignition..
module, sounds like you had checked and was bad, entirely possible that replacement is bad. take ohm reading. set for continuity test, if it tones, its good, not bad. i think right? Tom can probly get that straight... I am not entirely positive.

check coil.
check coil connectors.
check plug wires.
do the dash lights and every thing light up?
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Old Jul 5, 2003 | 11:15 PM
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
new coil, new wires, new plugs (gaped to stock), new battery ,new module, new TPS, new fuel filter, yes i have a sound... THANK ***!!! could there be a block in an injector?? perhaps in the line??? i dont know hwat else in my igniton could be bad
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Old Jul 5, 2003 | 11:19 PM
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Originally posted by PONTIAC86style
new coil, new wires, new plugs (gaped to stock), new battery ,new module, new TPS, new fuel filter, yes i have a sound... THANK ***!!! could there be a block in an injector?? perhaps in the line??? i dont know hwat else in my igniton could be bad
a clogged injector will run rough, but run

possibly fuel filter?
rent a fuel pressre tester from A/Zone and hook to nipple fitting on fuel rail.
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Old Jul 5, 2003 | 11:24 PM
  #9  
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
had the lines pressure tested last week, spent 88 bucks to have her checked from bumber to bumber, and "nuthin wuz wrong"
less that 7 days later, im back on the phone with good ol' whites towing......
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Old Jul 5, 2003 | 11:27 PM
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minor, but is the pressure regulator vac line on?

goes to charcoal canister...
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Old Jul 5, 2003 | 11:32 PM
  #11  
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
"on"? do you mean there is a switch for all that ****
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Old Jul 5, 2003 | 11:34 PM
  #12  
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Originally posted by PONTIAC86style
"on"? do you mean there is a switch for all that ****
no, there is a hose.... that goes to the port.
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Old Jul 5, 2003 | 11:37 PM
  #13  
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
well... last i checked all that stuff was good, and connected, i just did some vacume line repair this last spring... hmmm..... but how could a vacume problem just happen like that, with out any other problems of a bad line or somthing.... im just relaly hoping whatever this is... its fairly simple
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Old Jul 5, 2003 | 11:48 PM
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well if the line PSi is good, and the electronics are all replaced...

DA DA DUMMMMMMMMMMM

only thing left is the ECU.....

I would try getting touble codes from it, if you cannot, you may just find your prob.
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Old Jul 6, 2003 | 12:18 PM
  #15  
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From: St. Louis, MO
Car: 85' Firebird (Project), 92' RS
Engine: 2.8L, LS1
Transmission: 700R4, 4L60E
Axle/Gears: 3.42 Open , 10 Bolt (ukn)
good point onthe ECM, and i haven o clue as to why i didn't think of that.....hey by chance did u fill up ur gas tank right b4 the car died? i did that one night, was stumped, bought some heet, dumped in, no probs since....= bad gas. but given ur replacements , i'm sure that you woulda found that already....check for codes and get back to us....you cna look up codes on the site also, thinkn in FAQ's or Tech Data, not to sure, but one of them (if you didn't know)...good luck.
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Old Jul 6, 2003 | 01:06 PM
  #16  
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
well im not getting any codes thrown back at me, so ive decided to have towed up to the old garage, ill pay for my inability do do it myself, but i will definetly let you guys know what they say about this
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Old Jul 6, 2003 | 02:37 PM
  #17  
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From: St. Louis, MO
Car: 85' Firebird (Project), 92' RS
Engine: 2.8L, LS1
Transmission: 700R4, 4L60E
Axle/Gears: 3.42 Open , 10 Bolt (ukn)
ANY CODES? with ur car in the on position and the ALDL connector tripped, you should recieve a code 12....if you don't recieve a code 12, then you're having issues with ur computer. So, a 12 + no other codes = no problem with the ECM. A 12 w/ other codes = good ECM, bad other component. NO 12, bad ECM.
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Old Jul 6, 2003 | 02:50 PM
  #18  
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
oops... yeah, just a code 12.... over and over and over
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Old Jul 6, 2003 | 02:56 PM
  #19  
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From: St. Louis, MO
Car: 85' Firebird (Project), 92' RS
Engine: 2.8L, LS1
Transmission: 700R4, 4L60E
Axle/Gears: 3.42 Open , 10 Bolt (ukn)
k. sorry we couldn't help you fix it, and the shop is needed...tell us what the verdict is once you find out, so we can all say (huh...shoulda thought of that)
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Old Jul 6, 2003 | 10:37 PM
  #20  
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
oh i will, cuz i dont think ive ever been this stumped..... at least i usually figure it out ... then i decide if i have the time and patience for it.... this time i dont even know what her problem is... thanks for the advise
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Old Jul 7, 2003 | 04:10 PM
  #21  
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
it was the coil pickup...... oh my *** 187 bucks just ripped from my "performance" funds..... can you belive the entire distributer has to come out??? oh well, least tomrow ill have that pos to drive instead of the ultimate junker..... 1984 ford escort with a 1.6 liter carberated monster!!!! oh yeah, all the ladies love it.....
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Old Jul 7, 2003 | 06:52 PM
  #22  
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From: St. Louis, MO
Car: 85' Firebird (Project), 92' RS
Engine: 2.8L, LS1
Transmission: 700R4, 4L60E
Axle/Gears: 3.42 Open , 10 Bolt (ukn)
glad to hear its fixed, but sorry to hear that it cost some $$ that coulda been put to a different/better use. I do remember when i had my ignition issues, i couldn't find what or where, but new i was headed in the right spots....well, $400 later, my problems were solved and the car ran about 100% better than it ever had, smooth idle, good acceleration, etc etc etc.....but they ended up fixing a pickup coil along with several other things , MAF, and tons of wiring that had bit the dust.
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Old Jul 7, 2003 | 10:04 PM
  #23  
PONTIAC86style's Avatar
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
yeah, well he did show me that if i shifted some wires around it would start....... so im thinkin this could be a think that's been long comin, and i might as well have it done.... money is money, i'll find a way to work it out ya know?maybe this will solve some of my acceleation issues..... who knows, but i am gonna have a nice ignition system when im done, just need a starter now, but hey, im not gonna push it! thanks again for the advice
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